Portland Area Monthly Temperature Averages from Downtown 1874-1940 and Airport 1941-2010
Year	January		February		March		April		May		June		July		August		September		October		November		December		Year
	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo	Hi	Lo
1874	little or no data prior to July 1874												77.8	n/a	73.5	53.5	71.8	49.3	66.1	45.5	51.3	39.6	48.3	38.2	1874
1875	35.9	24.6	47.8	34.4	50.6	38.9	66.7	43.5	64.1	47.4	70.2	51.2	82.9	58.0	77.0	55.2	73.8	52.3	66.0	50.9	50.9	38.9	52.7	42.7	1875		AVERAGES BASED ON
1876	46.0	33.2	51.8	38.8	51.5	38.6	57.9	42.3	63.7	45.9	73.7	54.0	75.3	56.2	73.5	52.1	72.9	53.2	65.2	50.5	54.0	40.9	46.9	33.9	1876		1971-2000 PERIOD
1877	48.1	35.8	54.0	38.6	57.0	42.8	62.3	41.6	64.8	45.4	70.7	50.1	76.4	55.1	76.4	55.5	68.8	49.9	61.4	44.9	54.5	41.8	48.6	36.5	1877
1878	47.0	35.5	51.3	39.0	59.2	42.7	60.9	41.6	67.7	45.4	76.3	51.0	74.5	53.5	77.5	54.3	68.8	49.5	58.5	43.8	52.6	40.7	44.7	34.3	1878		CELL LEGEND
1879	43.5	32.2	50.1	37.2	55.5	41.7	60.8	44.2	62.7	47.6	68.9	51.9	75.3	55.3	78.3	55.2	73.5	53.8	59.0	46.0	50.3	36.9	43.5	34.3	1879		COLDER THAN NORMAL
1880	45.7	37.6	43.2	33.5	48.5	34.9	59.5	40.8	62.8	44.5	69.9	51.3	76.7	54.4	73.5	54.0	69.8	50.3	62.1	44.6	48.3	36.2	45.1	34.5	1880		WARMER THAN NORMAL
1881	44.4	34.6	50.5	40.4	57.3	42.1	63.2	47.4	67.2	46.5	69.9	52.4	75.2	54.0	73.2	55.5	69.4	50.5	56.4	43.9	50.1	38.4	49.5	38.4	1881
1882	45.4	35.1	44.0	32.8	52.7	37.0	57.8	40.8	68.2	47.1	74.8	54.3	79.1	55.2	77.4	54.8	72.3	50.6	58.1	45.7	51.2	37.6	51.5	42.1	1882
1883	44.3	32.5	42.1	25.8	61.8	41.0	59.3	42.1	69.8	48.5	75.9	53.5	79.9	57.1	73.8	54.2	72.3	52.7	58.3	45.9	52.8	42.1	49.0	36.9	1883
1884	46.3	33.3	44.3	29.3	55.6	37.8	65.2	45.3	73.7	48.7	74.9	54.1	75.0	55.8	82.0	57.6	66.5	49.3	62.0	44.9	55.2	41.4	37.5	25.6	1884
1885	42.8	31.5	53.3	41.6	63.2	42.9	68.3	41.5	74.5	48.8	73.7	50.4	83.1	57.3	82.4	52.7	73.8	51.1	69.2	46.2	57.8	40.6	50.0	37.8	1885
1886	45.3	31.7	53.4	39.1	54.3	37.5	59.9	42.6	69.8	48.4	75.6	53.5	81.2	56.4	79.8	55.3	74.6	52.2	60.2	44.4	48.7	34.6	50.9	40.2	1886
1887	47.7	36.8	38.3	25.7	58.8	40.9	59.5	42.0	69.3	48.2	71.3	50.5	78.5	54.2	75.8	54.9	71.9	49.3	63.4	45.1	50.8	38.4	47.0	37.9	1887
1888	36.5	22.0	51.7	35.9	55.7	36.3	66.5	44.1	75.2	49.7	71.2	54.5	80.4	54.7	81.7	56.3	77.3	54.7	63.6	48.8	49.1	38.7	48.6	38.8	1888
1889	44.7	32.2	53.4	35.1	63.9	43.7	65.2	43.4	70.9	49.7	79.4	52.5	84.4	56.4	77.1	52.4	73.4	49.3	65.6	48.7	54.1	41.2	43.3	34.1	1889
1890	36.7	26.8	45.1	31.9	52.4	37.9	63.2	41.7	72.5	48.8	71.5	52.2	76.6	54.4	76.9	54.9	74.6	50.2	61.9	43.3	55.8	38.6	48.3	37.6	1890
1891	48.8	37.5	42.3	31.7	51.8	36.3	60.5	44.1	70.4	49.4	68.7	51.6	80.5	57.0	82.1	57.8	70.1	51.4	65.0	50.1	53.6	44.3	46.4	37.5	1891
1892	44.7	35.1	50.0	36.8	57.4	42.4	56.6	41.3	69.2	48.9	72.4	51.9	75.0	54.4	78.5	55.2	72.7	53.1	61.3	45.1	50.5	40.9	42.7	33.9	1892
1893	39.5	28.4	42.9	31.4	49.9	38.9	51.1	40.7	62.5	46.3	65.3	49.9	75.1	53.9	77.3	55.2	65.2	50.6	56.3	42.7	51.4	39.9	48.5	39.2	1893
1894	44.9	35.8	42.9	32.2	50.7	37.4	57.1	42.0	64.5	46.5	66.3	51.4	78.8	55.7	80.9	57.5	68.3	51.6	59.5	45.5	54.5	42.6	44.3	34.4	1894
1895	42.1	32.5	48.6	37.1	54.1	37.7	61.2	41.8	64.0	47.8	72.7	51.7	75.8	55.5	76.9	53.8	65.3	49.1	65.9	46.2	50.3	37.4	45.1	36.6	1895
1896	48.6	37.0	52.1	40.3	53.4	37.6	54.1	39.9	59.6	44.9	70.5	51.8	81.5	58.7	74.7	57.9	70.9	51.1	64.7	47.1	43.2	34.0	48.2	39.6	1896
1897	43.4	34.1	47.4	37.2	45.7	35.3	65.6	44.4	71.9	50.9	69.1	53.2	74.1	55.1	82.3	59.9	68.7	51.3	62.4	46.1	49.9	39.5	47.8	38.5	1897
1898	42.9	35.1	50.6	40.8	51.3	36.3	60.6	42.7	65.5	47.7	71.3	53.7	77.2	55.6	77.8	58.5	71.5	54.1	60.2	45.7	49.0	38.8	42.1	32.9	1898
1899	45.0	36.1	45.0	33.7	50.9	36.8	56.7	40.8	57.5	44.7	67.4	50.2	77.6	56.1	69.1	53.9	74.6	53.6	58.8	44.8	57.1	47.9	47.7	38.5	1899
1900	49.3	38.8	47.1	36.6	59.5	44.2	60.9	43.6	64.4	49.2	72.4	54.5	77.1	56.1	72.3	53.9	68.6	51.4	59.3	45.1	51.5	40.2	50.3	39.4	1900
1901	44.7	34.3	48.9	37.3	53.7	39.4	57.3	40.3	65.0	48.4	65.4	50.7	72.8	52.9	80.2	56.7	67.0	49.6	67.1	51.1	53.8	43.0	45.3	36.9	1901
1902	43.7	33.2	49.9	39.4	50.5	39.5	56.7	41.4	63.5	49.0	71.0	51.7	75.2	55.1	78.8	54.8	72.8	51.2	64.7	48.4	50.9	41.3	44.5	36.2	1902
1903	47.1	38.6	48.4	33.7	53.9	37.6	57.6	42.0	66.3	47.5	73.3	55.1	74.0	54.4	75.6	56.4	71.9	51.0	64.0	47.2	51.1	41.2	45.8	36.3	1903
1904	46.0	38.2	46.1	36.4	48.7	38.2	63.9	45.7	67.7	47.5	73.6	52.2	77.5	56.6	79.8	55.1	74.7	52.5	64.7	48.3	56.5	46.2	47.7	38.9	1904
1905	45.0	35.9	48.9	36.4	58.0	43.5	66.2	45.3	64.4	48.1	70.1	52.6	80.2	56.8	76.8	55.5	71.0	53.1	58.6	44.0	51.8	37.0	44.6	36.3	1905
1906	47.4	38.5	50.0	39.9	52.7	38.2	66.6	44.7	65.5	48.3	69.3	50.8	84.8	59.8	80.4	56.0	71.7	51.8	63.4	47.9	50.8	41.6	47.4	38.8	1906
1907	38.8	29.1	51.3	39.3	51.3	38.5	61.4	42.9	69.3	49.0	71.7	53.6	78.5	57.3	73.9	55.2	71.9	53.6	64.2	50.4	55.5	42.0	48.7	39.2	1907
1908	47.4	37.1	48.4	37.4	52.9	39.4	62.5	43.3	60.9	44.8	71.1	51.3	80.4	59.0	76.4	55.5	70.9	49.2	60.4	45.4	55.2	42.5	43.3	34.8	1908
1909	38.0	27.6	48.2	38.4	55.2	40.0	60.0	42.1	64.3	45.4	73.1	52.3	73.2	54.6	76.7	53.2	73.8	52.7	62.4	46.8	52.3	42.0	40.4	30.8	1909
1910	42.3	32.8	44.5	34.1	60.8	43.6	62.8	44.7	69.7	50.4	69.3	51.3	78.1	56.1	74.3	53.5	69.2	50.9	62.4	49.6	51.8	41.8	46.9	38.9	1910
1911	42.6	34.2	46.0	34.5	58.8	39.5	58.4	39.2	62.2	46.4	68.6	50.6	81.1	57.9	77.0	57.1	65.9	50.9	62.5	46.0	51.6	40.5	45.5	37.2	1911
1912	46.1	36.6	50.8	39.8	54.5	38.2	58.0	41.8	68.8	49.5	73.6	53.7	76.9	57.8	75.1	56.4	72.3	52.2	59.3	44.0	52.3	41.8	45.9	37.0	1912
1913	42.8	33.5	46.1	33.3	50.9	38.3	59.4	42.7	66.4	48.7	72.1	53.7	78.2	57.5	78.8	58.5	72.7	51.9	60.4	46.0	52.1	42.9	44.3	37.1	1913
1914	50.5	41.2	48.0	38.7	58.0	44.3	62.7	44.8	71.6	50.6	70.5	52.4	80.1	57.1	79.1	57.0	67.3	51.4	64.1	50.6	52.5	41.6	41.5	32.1	1914
1915	43.6	34.8	51.2	39.5	60.6	44.5	65.7	45.6	66.5	48.9	72.0	53.3	76.1	58.3	82.7	59.8	71.7	53.0	63.3	48.2	49.9	40.9	46.1	38.0	1915
1916	34.1	25.2	48.0	36.5	53.2	40.7	62.1	44.2	63.3	46.2	71.6	52.3	72.7	55.6	78.5	57.5	72.4	52.6	63.1	43.4	49.1	38.3	41.8	34.4	1916
1917	44.3	35.0	46.4	36.6	48.6	36.5	55.9	42.8	61.6	47.5	72.0	51.6	80.6	57.4	82.1	58.5	71.5	54.7	66.9	47.7	57.4	43.9	52.5	44.3	1917
1918	49.5	41.4	47.2	36.1	53.6	39.6	63.3	42.3	64.5	46.6	78.8	55.4	78.4	57.1	77.3	57.4	78.0	56.9	63.5	49.3	51.7	41.6	46.9	37.7	1918
1919	47.6	36.9	47.1	38.0	55.5	40.8	61.9	44.8	66.8	47.7	70.8	50.4	79.8	56.1	80.1	57.0	71.4	53.6	58.3	43.5	50.3	39.7	38.5	28.6	1919
1920	44.6	34.1	50.0	34.4	52.8	38.9	56.1	40.7	65.7	44.5	71.8	52.4	79.2	57.1	80.6	58.0	69.1	53.3	59.0	47.2	52.7	40.9	47.7	40.5	1920
1921	46.4	36.8	50.6	39.9	54.7	41.2	58.9	42.6	66.5	47.7	72.9	56.0	76.3	54.8	77.5	56.6	69.7	51.3	65.5	48.6	54.4	43.0	44.0	34.2	1921
1922	40.4	29.9	45.1	34.3	49.8	36.8	56.4	41.0	67.9	48.2	76.2	54.8	79.6	56.9	77.2	57.3	73.9	53.8	62.1	48.8	48.8	38.3	42.5	33.6	1922
1923	46.9	38.8	43.3	31.6	55.5	38.9	63.5	45.0	66.1	49.1	71.7	53.3	77.5	58.1	81.5	59.6	74.7	54.3	64.8	49.4	57.3	43.5	46.3	36.7	1923
1924	43.5	33.5	53.8	42.2	53.6	38.1	63.4	42.7	72.4	50.1	74.7	53.9	78.2	55.8	75.9	57.1	73.7	53.1	61.4	47.8	50.5	40.7	41.3	31.8	1924
1925	49.4	40.3	51.6	41.1	55.4	39.5	62.5	45.8	71.0	51.4	73.5	53.3	81.3	58.4	76.1	55.8	71.3	54.5	64.4	47.1	51.2	40.9	50.9	40.6	1925
1926	47.5	38.0	54.5	42.9	63.4	43.6	70.4	50.0	68.1	50.3	77.7	56.2	82.8	58.2	79.6	58.7	70.9	52.2	65.5	50.2	56.5	44.6	45.6	36.3	1926
1927	43.2	34.9	51.8	39.4	54.3	39.5	61.3	42.6	62.9	47.8	73.7	55.0	78.9	58.2	79.9	58.4	69.5	54.3	62.5	47.4	54.8	44.8	42.4	33.2	1927
1928	43.2	34.0	50.7	37.7	57.5	44.1	58.8	43.9	74.1	50.7	69.8	54.7	79.2	58.8	78.3	56.7	70.2	52.8	61.2	48.2	51.9	41.2	45.2	35.0	1928
1929	39.3	29.0	41.9	29.4	54.6	40.8	57.4	40.9	68.3	48.8	71.3	53.6	80.0	56.6	80.9	57.3	75.6	54.0	67.6	49.4	51.8	37.7	49.9	40.7	1929
1930	32.6	23.5	53.1	39.5	58.9	41.7	64.5	47.1	63.8	46.3	71.9	52.5	77.6	55.7	80.7	59.0	72.4	55.0	61.4	46.0	52.3	39.8	44.7	36.2	1930
1931	49.8	39.6	51.2	38.8	55.9	41.8	65.2	45.9	73.5	51.9	72.6	54.6	82.1	58.1	81.1	57.3	71.5	54.0	64.0	47.6	49.6	38.3	44.4	35.9	1931
1932	44.2	35.3	47.1	35.8	53.5	42.4	61.5	44.9	66.5	48.7	76.5	55.2	75.7	55.8	77.3	58.8	77.2	53.9	64.5	49.8	55.1	43.5	42.7	33.5	1932
1933	43.6	36.0	43.8	32.6	54.0	40.1	61.5	41.8	61.0	46.8	71.4	53.2	79.1	56.9	80.4	58.8	67.4	51.8	65.3	49.0	51.6	41.4	50.5	42.8	1933
1934	51.5	42.3	56.4	42.5	64.0	46.4	70.0	49.5	70.8	52.1	74.0	54.1	76.8	57.1	80.5	58.5	72.3	53.2	65.5	49.2	54.9	45.7	48.1	40.1	1934
1935	46.0	34.9	52.5	40.0	50.3	37.8	60.5	42.9	68.9	46.8	74.4	54.4	78.7	56.9	79.7	57.1	78.1	56.3	60.5	46.1	48.2	36.5	46.6	37.7	1935
1936	48.5	39.8	38.9	28.9	52.5	38.1	64.5	46.6	70.7	51.7	73.8	56.5	77.7	57.8	80.4	58.6	73.2	53.7	68.2	49.1	53.0	38.1	47.3	40.2	1936
1937	34.4	25.4	47.0	36.5	56.1	43.3	57.1	43.0	68.4	48.5	74.8	56.1	78.5	58.4	76.6	57.0	72.5	55.2	67.5	51.0	54.1	45.2	49.0	39.0	1937
1938	46.5	36.3	48.1	38.6	53.4	40.5	63.3	45.4	69.8	49.0	75.3	54.5	82.8	59.2	76.7	55.8	77.6	57.4	64.6	49.9	49.6	40.1	48.1	39.2	1938
1939	47.9	39.6	46.0	35.6	57.5	41.3	66.1	45.8	70.9	50.4	69.7	52.9	80.5	58.3	81.5	58.4	75.1	55.7	63.6	49.5	56.4	43.5	51.0	41.7	1939
1940	47.3	37.2	52.0	42.4	59.2	44.5	63.5	47.1	73.3	51.9	79.2	55.8	79.2	58.7	81.9	59.0	73.7	57.5	65.5	51.8	49.1	35.9	48.5	36.0	1940
1941	47.4	35.2	55.1	37.1	63.5	40.6	65.8	43.1	67.1	48.1	71.6	52.6	84.5	58.3	77.6	58.0	68.8	52.0	62.5	46.8	54.8	41.3	47.7	38.1	1941
1942	39.8	30.9	49.2	36.3	55.6	37.1	62.1	43.5	65.1	47.8	70.4	51.6	80.2	58.6	80.5	57.6	76.3	50.3	65.5	45.8	50.4	39.4	47.7	38.3	1942
1943	40.0	26.3	52.6	34.3	53.5	37.5	64.1	44.5	65.2	46.0	69.6	51.0	78.9	55.5	78.0	55.7	79.5	52.0	62.5	47.2	53.5	38.7	46.3	33.6	1943
1944	45.5	32.8	49.0	35.4	54.7	36.0	59.9	41.8	68.4	46.6	71.8	51.6	80.2	55.6	78.0	55.6	77.8	52.5	67.9	49.1	51.6	38.9	44.8	33.9	1944
1945	48.5	36.3	50.8	38.0	52.0	38.4	58.7	42.1	68.4	49.2	73.0	50.6	82.0	56.0	80.4	55.4	72.1	49.5	64.1	44.2	50.3	39.9	44.9	34.7	1945
1946	46.7	35.1	49.4	36.0	54.4	38.7	61.5	41.4	70.6	48.8	70.6	51.8	79.1	56.2	80.0	55.5	72.5	51.5	58.8	42.5	51.0	35.3	47.2	36.5	1946
1947	43.6	30.9	53.8	36.7	59.8	39.7	64.6	43.2	73.3	49.3	71.1	52.9	77.2	56.4	76.9	54.8	75.6	51.7	61.8	48.9	52.6	41.5	48.3	37.5	1947
1948	45.7	33.0	47.5	34.0	52.4	37.1	56.5	41.3	65.0	47.1	75.9	57.1	76.7	57.2	74.2	57.4	73.0	50.7	62.4	44.7	49.6	37.9	42.8	33.2	1948
1949	34.6	21.0	45.2	33.0	53.0	37.9	63.0	42.1	69.8	48.5	72.9	50.5	77.1	54.6	77.4	55.5	75.0	51.3	57.6	39.5	58.4	41.3	46.3	36.5	1949
1950	32.8	21.2	45.5	32.1	51.5	38.6	57.9	39.2	65.8	43.2	71.3	52.2	79.0	54.7	81.8	55.7	74.4	49.2	58.7	46.1	51.6	41.2	51.4	41.4	1950
1951	44.5	35.0	49.7	36.0	49.4	34.5	66.0	40.9	67.0	46.5	77.1	51.9	78.4	55.7	77.9	53.4	76.0	50.2	61.6	45.7	51.2	40.2	42.6	32.4	1951
1952	40.4	30.8	48.4	35.0	52.4	38.3	64.4	40.4	68.5	46.5	69.4	51.1	80.9	55.0	79.6	56.1	79.0	50.6	71.8	45.5	49.5	31.8	46.8	36.4	1952
1953	52.0	42.6	51.3	36.3	53.5	38.1	58.8	40.9	63.3	45.5	66.4	50.8	78.0	54.4	76.1	55.0	74.6	50.3	64.4	44.2	55.0	42.2	49.1	38.3	1953
1954	44.2	33.8	49.8	35.3	54.1	33.6	59.3	39.8	67.4	46.0	66.2	49.7	72.6	53.5	71.6	55.0	69.9	50.4	63.0	43.1	55.8	43.5	46.0	35.7	1954
1955	44.8	34.6	47.3	33.5	49.2	33.8	55.0	37.9	63.0	42.8	70.7	50.7	72.2	54.7	77.2	53.7	71.9	48.9	61.0	46.2	46.9	35.9	44.7	33.7	1955
1956	45.2	34.6	40.9	30.8	51.8	36.5	63.6	41.7	69.7	48.4	67.6	50.4	80.1	55.9	75.7	55.1	72.0	49.6	59.0	44.4	50.6	34.6	46.0	35.3	1956
1957	36.5	25.9	50.1	33.2	52.9	39.4	61.4	42.2	67.5	50.2	71.5	52.6	76.6	54.5	75.2	53.8	79.1	51.4	61.3	44.3	53.0	34.9	49.3	38.5	1957
1958	49.9	37.3	54.6	42.6	54.8	36.1	60.5	41.2	73.4	50.2	73.6	56.8	83.5	57.6	83.3	57.3	74.0	50.6	67.2	43.1	51.7	39.2	49.1	38.0	1958
1959	45.4	35.3	48.6	36.8	54.9	38.6	62.0	42.5	65.2	46.2	71.5	54.0	80.7	56.6	77.1	53.8	69.3	51.3	63.0	45.4	50.5	35.0	46.0	33.2	1959
1960	39.4	31.3	49.5	35.0	53.4	36.5	60.1	41.1	62.4	45.4	74.4	51.6	82.8	55.3	75.5	55.3	73.2	49.8	64.2	44.8	53.4	39.5	44.8	32.5	1960
1961	50.2	37.0	52.7	41.6	54.7	40.6	58.6	41.5	65.7	47.4	77.3	53.3	81.2	57.5	82.9	57.7	71.1	47.9	62.6	43.9	50.9	34.9	46.1	35.7	1961
1962	45.3	31.9	50.3	35.6	53.5	37.0	62.4	42.7	61.1	46.6	72.7	50.5	78.9	53.8	76.7	55.2	74.8	51.8	63.6	46.6	53.9	41.2	48.5	36.6	1962
1963	41.2	28.7	55.3	40.2	53.7	36.7	55.9	41.2	67.4	45.7	68.4	51.5	72.0	54.1	76.5	55.7	76.5	53.7	63.1	45.3	52.7	39.3	43.9	32.0	1963
1964	46.7	35.1	49.5	30.6	52.0	35.6	56.0	37.4	63.3	41.9	68.4	49.0	75.9	53.1	75.2	52.2	70.3	46.5	64.5	41.9	47.6	34.4	42.6	31.4	1964
1965	45.3	35.1	50.6	36.2	59.6	35.5	61.9	41.6	64.5	44.0	73.9	49.7	83.3	56.0	80.1	57.0	72.9	47.9	67.4	47.5	55.8	43.5	45.4	33.5	1965
1966	45.5	35.0	50.3	35.2	56.3	38.1	61.0	40.2	69.6	44.3	74.1	50.6	77.3	55.5	80.4	54.6	75.4	53.4	63.4	43.9	53.5	40.7	48.9	39.5	1966
1967	48.9	38.2	52.6	34.7	51.9	36.0	56.2	37.6	68.1	46.0	77.5	54.3	82.6	55.9	88.1	57.7	80.0	52.8	63.9	45.7	53.9	38.4	45.6	35.1	1967
1968	44.6	34.0	57.8	38.5	57.0	39.3	57.8	38.2	65.6	47.0	72.7	51.7	81.3	55.9	75.7	55.8	71.4	51.6	60.8	43.3	53.5	39.5	42.2	32.4	1968
1969	36.4	27.4	46.9	32.4	58.9	34.1	59.9	40.2	71.5	47.4	76.1	56.9	78.0	55.2	78.4	53.7	74.0	52.8	62.1	44.4	54.2	40.2	47.8	37.9	1969
1970	46.1	35.0	54.9	37.1	57.2	36.6	57.4	39.3	68.9	45.1	77.9	53.9	82.5	55.8	81.5	54.9	72.1	49.3	63.7	42.3	54.2	40.0	45.8	34.1	1970
1971	45.3	35.5	50.4	35.1	52.0	35.4	60.1	39.1	67.6	45.9	69.8	50.6	81.4	56.9	83.6	59.6	71.7	49.9	61.0	43.7	51.4	39.5	45.3	35.4	1971
1972	44.8	33.5	50.5	37.0	58.3	41.2	57.4	38.6	71.4	48.9	74.6	53.3	83.9	57.8	85.0	58.4	72.8	49.5	64.1	41.9	55.0	41.4	43.1	31.7	1972
1973	45.0	32.9	53.2	36.6	55.7	40.0	63.4	41.1	71.2	47.6	74.3	53.5	83.5	57.0	77.5	54.3	75.9	52.9	62.7	45.8	49.2	39.1	49.6	39.7	1973
1974	43.7	32.2	48.4	37.6	55.3	39.1	59.3	43.3	64.4	47.0	75.6	53.1	77.9	56.2	80.4	57.4	81.9	52.7	67.8	42.5	54.7	41.5	49.6	38.6	1974
1975	46.8	36.1	47.7	34.7	52.3	37.6	56.6	38.0	68.4	46.5	72.0	51.7	80.1	57.9	75.3	55.3	79.7	51.6	60.0	47.0	52.0	39.9	48.1	37.2	1975
1976	47.9	36.5	49.2	35.0	53.0	35.7	60.1	40.4	67.2	45.9	70.8	49.9	78.5	55.8	74.3	56.7	74.6	53.8	64.8	44.5	56.1	37.8	45.4	33.5	1976
1977	43.0	28.3	52.4	36.8	52.9	38.1	65.3	40.4	62.3	45.3	75.4	52.4	77.8	54.8	84.1	59.3	69.7	51.8	63.5	44.0	49.5	37.0	46.9	37.1	1977
1978	44.5	35.6	51.4	38.0	59.3	38.9	58.8	42.1	64.5	44.8	75.6	54.6	80.0	56.7	77.8	57.3	69.0	52.8	66.9	42.5	46.9	31.2	41.6	28.9	1978
1979	35.4	26.0	48.7	37.0	60.5	41.0	61.8	44.3	70.5	49.6	76.6	53.5	83.4	57.6	78.7	58.5	77.4	55.2	66.7	49.5	51.5	38.5	49.9	38.9	1979
1980	40.8	29.4	49.4	35.5	53.5	39.0	64.5	43.1	66.1	48.5	68.5	52.8	80.0	57.7	77.6	55.1	75.1	52.4	66.8	45.2	54.8	42.2	50.2	37.8	1980
1981	51.2	36.5	51.8	36.1	58.4	39.2	61.4	43.5	66.2	48.8	70.5	53.0	78.2	56.7	85.5	58.8	76.5	53.2	62.4	44.2	56.4	41.2	47.9	37.4	1981
1982	44.1	35.2	50.3	36.8	57.9	39.0	58.6	39.3	68.8	46.3	76.7	55.2	78.0	56.9	79.6	57.5	73.2	53.1	63.8	45.9	51.3	37.4	47.2	36.2	1982
1983	50.4	38.3	53.3	41.2	57.7	43.7	63.0	42.4	70.4	50.4	70.9	54.6	75.2	57.8	78.8	59.4	71.9	51.1	63.6	44.8	53.9	44.7	40.2	32.5	1983
1984	48.6	35.8	52.7	39.1	59.1	43.1	57.9	42.8	64.8	48.0	71.2	53.1	80.9	57.2	81.1	57.7	73.8	53.6	59.8	45.9	52.5	40.9	42.8	33.8	1984
1985	43.2	28.9	48.6	33.5	54.8	36.7	63.3	44.4	68.2	48.3	75.4	53.3	87.5	60.7	81.0	57.5	70.6	51.0	61.6	43.8	42.9	31.6	39.2	26.8	1985
1986	49.3	35.7	50.9	36.4	60.5	42.0	59.5	40.9	67.3	47.9	77.4	55.2	75.4	55.1	86.2	58.4	70.7	52.3	67.1	46.8	53.7	41.6	46.4	34.7	1986
1987	45.7	33.5	52.7	37.7	56.7	40.7	64.7	43.6	71.1	49.6	79.3	53.6	77.4	56.9	84.1	56.9	78.5	52.4	71.9	44.5	55.6	41.9	44.2	33.9	1987
1988	44.4	33.6	53.6	35.8	56.7	37.7	60.6	43.7	65.8	46.9	73.0	51.8	80.9	55.9	80.9	55.0	76.9	51.0	66.8	49.8	52.7	42.2	47.5	36.4	1988
1989	47.8	36.6	43.5	28.5	52.6	38.5	66.8	45.2	67.6	48.3	74.9	53.6	75.0	55.9	75.5	56.6	79.7	50.8	63.6	46.1	55.0	42.1	45.9	34.6	1989
1990	49.0	37.7	48.7	35.0	58.8	39.9	64.4	44.6	65.6	47.8	73.1	54.0	83.8	58.5	82.1	59.6	78.0	56.0	62.5	45.2	54.4	42.3	40.0	29.4	1990
1991	46.6	31.2	57.7	39.9	54.6	37.8	59.5	42.0	62.3	47.1	68.3	51.4	82.4	57.3	81.6	58.5	81.4	53.3	66.8	43.9	53.2	41.8	47.8	37.6	1991
1992	50.5	38.5	56.2	40.0	63.7	40.8	64.3	46.5	76.6	49.6	79.5	55.2	81.7	58.7	82.9	56.6	73.5	51.0	64.5	47.2	52.0	40.5	44.0	34.6	1992
1993	42.2	30.8	47.3	32.8	56.7	39.1	59.9	45.2	71.3	50.9	71.6	53.4	72.8	55.8	79.6	57.3	80.1	51.2	67.7	47.0	49.2	33.8	48.0	34.7	1993
1994	50.1	38.8	47.6	34.1	60.9	39.5	63.7	44.7	71.3	50.0	73.7	52.1	84.6	57.5	82.1	58.2	79.4	55.8	64.4	43.8	48.3	37.0	47.5	37.0	1994
1995	48.2	38.5	54.9	38.0	57.5	39.0	60.6	41.9	71.6	49.8	74.1	53.4	81.6	59.5	78.9	55.6	77.6	56.6	63.3	45.7	57.1	46.2	47.4	37.4	1995
1996	45.1	36.2	49.2	34.0	55.9	39.4	61.7	45.2	62.7	47.8	73.5	52.9	84.7	59.3	82.2	58.5	71.2	52.4	61.8	46.1	51.2	39.7	46.7	36.5	1996
1997	45.7	36.3	50.9	34.9	54.4	38.9	59.4	42.6	72.6	51.7	71.6	53.7	79.3	58.4	82.7	60.4	75.7	56.0	60.7	46.6	55.9	43.7	46.1	36.1	1997
1998	47.8	38.1	51.8	40.4	56.2	41.3	62.1	43.4	62.7	49.8	72.3	54.4	80.7	61.2	82.7	59.3	79.1	54.7	62.1	46.5	53.4	44.4	45.5	35.5	1998
1999	47.9	37.7	49.3	38.1	52.7	38.9	60.3	41.0	63.9	45.9	69.3	53.0	78.2	56.1	78.5	59.5	78.2	51.0	65.5	44.7	56.0	44.2	49.1	38.7	1999
2000	45.1	34.5	50.2	37.1	53.9	37.3	64.1	43.9	66.0	49.1	76.4	54.1	78.4	57.2	78.6	56.9	73.9	53.9	63.2	47.2	49.5	36.0	45.5	35.2	2000
2001	46.8	35.5	50.3	33.6	56.6	39.4	57.9	41.3	71.5	47.3	70.5	51.5	77.0	56.0	80.1	58.3	76.3	53.9	62.3	44.8	53.7	42.2	46.9	37.0	2001
2002	45.6	36.7	52.5	36.3	52.1	37.6	60.9	43.6	64.6	46.8	75.0	54.3	81.7	57.9	81.4	57.2	76.5	52.8	63.7	44.5	55.2	40.0	48.5	38.3	2002
2003	50.7	38.8	51.6	37.0	55.8	42.1	58.2	43.4	66.5	48.1	77.3	54.8	84.7	58.5	81.7	58.4	78.4	55.1	66.0	50.4	51.5	38.9	47.2	37.8	2003
2004	42.6	34.3	51.7	38.8	60.4	42.0	67.3	45.3	68.5	51.7	75.8	55.2	83.4	59.6	82.3	60.7	71.2	54.3	64.0	48.5	52.0	39.7	48.2	38.3	2004
2005	47.9	35.6	53.8	33.3	60.1	39.8	60.3	44.2	68.5	51.8	70.3	53.7	81.5	59.1	83.3	58.1	73.5	51.5	62.7	49.9	51.0	37.1	44.2	35.3	2005
2006	50.1	40.8	49.3	34.7	53.7	38.5	62.9	43.3	70.2	49.3	76.2	56.4	82.5	59.5	81.2	57.2	77.7	52.5	63.5	44.5	52.5	42.3	45.3	34.7	2006
2007	44.4	31.8	50.4	38.0	57.7	42.5	60.4	43.0	69.5	47.6	72.1	53.6	81.5	59.9	78.6	58.0	72.8	52.0	61.0	45.2	52.0	37.6	45.5	36.4	2007
2008	43.9	33.6	52.4	37.3	52.9	37.9	56.7	40.3	67.5	50.3	71.8	51.9	80.8	56.8	80.0	59.2	77.3	53.1	62.2	44.9	55.1	43.3	42.8	32.1	2008
2009	46.2	33.9	50.3	32.4	52.5	38.1	62.3	42.2	71.5	48.7	74.8	56.6	86.5	60.6	80.5	59.3	77.2	55.1	62.3	47.0	54.1	41.4	41.6	29.6	2009
2010	49.6	40.5	54.1	39.0	56.8	39.6	59.1	42.8	63.2	46.8	68.8	52.1	79.0	55.9	79.5	56.8	73.0	55.9	63.5	46.7	50.3	39.6	46.6	38.5	2010
2011	47.3	36.1	46.5	34.1	52.5	39.7																			2011
Average	44.8	34.2	49.5	36.2	55.2	39.2	61.1	42.6	67.3	47.9	72.6	52.9	79.1	56.6	78.9	56.6	73.4	52.2	63.2	46.3	52.4	40.1	46.2	36.2	Avg
Normal	45.6	34.2	50.3	35.9	55.7	38.6	60.5	41.9	66.7	47.5	72.7	52.6	79.3	56.9	79.7	57.3	74.6	52.5	63.3	45.2	51.8	39.8	45.4	35.0	Norm
Max	52.0	42.6	57.8	42.9	64.0	46.4	70.4	50.0	76.6	52.1	79.5	57.1	87.5	61.2	88.1	60.7	81.9	57.5	71.9	51.8	58.4	47.9	52.7	44.3	Max
Min	32.6	21.0	38.3	25.7	45.7	33.6	51.1	37.4	57.5	41.9	65.3	49.0	72.0	52.9	69.1	52.1	65.2	46.5	56.3	39.5	42.9	31.2	37.5	25.6	Min

 

Portland Downtown Monthly Precipitation 1871-2010
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year		AVERAGES BASED ON
1871	7.60	5.06	9.84	3.64	5.18	0.50	0.55	0.45	1.15	1.19	2.77	7.62	45.55		1971-2000 PERIOD
1872	6.56	12.13	5.28	2.96	0.92	1.52	0.20	0.13	1.26	1.80	4.67	9.47	46.90
1873	8.49	6.58	12.76	2.35	2.18	2.96	1.02	0.84	0.00	3.86	4.33	5.15	50.52
1874	9.46	4.28	5.15	3.68	2.38	2.68	0.19	0.83	1.70	0.36	10.22	5.24	46.17		CELL LEGEND
1875	4.49	1.99	9.41	2.10	2.87	2.07	0.02	0.53	0.71	6.73	15.77	13.41	60.10		WETTER THAN NORMAL
1876	4.80	7.50	9.12	5.34	1.88	2.35	0.96	0.56	1.09	10.53	9.93	0.88	54.94		DRIER THAN NORMAL
1877	2.75	7.56	11.31	2.44	2.24	2.05	0.54	1.70	3.36	5.03	12.45	6.87	58.30
1878	6.67	12.16	6.23	1.85	2.17	0.13	1.10	0.50	3.54	3.22	5.61	4.52	47.70
1879	5.28	13.22	11.70	2.19	6.60	2.18	1.75	0.97	2.18	4.23	4.56	7.36	62.22
1880	12.27	5.67	4.48	2.92	3.13	1.59	0.59	1.31	1.34	1.47	3.17	13.93	51.87
1881	8.57	13.36	2.83	3.51	1.38	2.34	1.16	2.11	2.64	6.60	5.91	6.64	57.05
1882	5.06	10.49	2.53	4.60	1.84	1.91	0.95	0.07	0.91	11.63	7.11	20.14	67.24
1883	13.71	2.34	6.40	7.88	1.67	0.08	0.00	0.19	0.67	3.91	8.26	6.34	51.45
1884	3.70	4.88	2.25	3.57	1.34	1.42	1.80	0.33	4.25	4.01	3.24	7.52	38.31
1885	4.57	6.72	0.63	1.12	4.69	1.77	0.24	0.00	2.48	1.68	8.52	7.17	39.59
1886	9.37	1.96	5.39	3.16	1.32	0.67	0.32	0.03	1.19	2.87	1.00	11.52	38.80
1887	12.31	2.81	8.00	5.06	4.77	1.44	0.03	0.58	3.06	1.34	3.43	11.34	54.17
1888	8.50	2.42	2.87	2.06	0.68	5.38	1.04	0.05	1.13	4.97	4.47	5.19	38.76
1889	4.78	1.07	1.80	2.72	4.02	0.51	T	0.90	1.61	4.59	3.97	5.79	31.76
1890	11.13	9.85	6.23	1.41	1.08	2.23	0.59	0.13	0.10	2.79	0.50	4.34	40.38
1891	3.62	6.26	2.06	4.00	1.83	4.07	0.24	0.93	2.17	5.04	5.74	11.45	47.41
1892	4.79	2.48	2.82	4.82	1.57	1.41	0.70	0.17	1.63	2.16	4.34	6.69	33.58
1893	2.12	5.19	3.48	4.89	2.30	0.99	0.14	T	2.56	5.01	7.74	4.61	39.03
1894	9.65	5.16	7.48	2.57	1.09	2.16	0.10	T	1.32	3.56	2.76	3.47	39.32
1895	8.53	1.01	2.84	1.91	3.42	0.57	0.23	0.37	1.16	T	2.93	7.79	30.76
1896	6.52	3.44	2.19	4.09	3.55	1.41	T	1.32	0.47	1.76	13.12	6.26	44.13
1897	3.25	5.57	4.00	1.76	0.90	1.35	0.65	0.26	2.79	1.99	11.65	8.84	43.01
1898	3.91	6.51	2.17	2.12	1.78	1.88	0.79	0.15	2.69	1.58	6.03	4.29	33.90
1899	6.42	4.20	2.30	3.73	3.16	0.62	0.47	2.50	1.37	3.97	7.56	5.91	42.21
1900	4.58	3.36	4.63	1.30	3.90	1.76	0.34	2.04	1.93	3.87	4.50	6.01	38.22
1901	7.80	6.52	4.12	4.05	2.41	1.39	0.12	0.17	3.57	0.75	6.14	4.01	41.05
1902	3.11	8.66	5.79	3.71	2.19	0.80	1.76	0.44	1.75	1.72	9.94	10.28	50.15
1903	5.43	1.44	4.29	2.25	1.71	2.00	0.51	0.81	1.13	2.20	10.71	3.14	35.62
1904	5.22	11.08	8.73	2.26	0.59	0.45	0.73	0.20	0.28	2.29	7.40	7.14	46.37
1905	3.66	1.77	5.03	1.71	2.56	2.12	0.12	0.19	2.79	4.73	3.01	6.41	34.10
1906	5.72	6.76	2.23	2.02	2.00	3.03	T	0.05	2.20	3.43	8.30	7.55	43.29
1907	8.23	3.54	3.86	3.57	1.37	1.84	1.19	1.02	1.73	0.93	6.51	9.10	42.89
1908	4.73	2.85	4.39	3.38	4.66	0.67	0.05	1.34	0.23	5.17	3.10	3.80	34.37
1909	9.29	7.03	2.35	0.89	1.79	0.17	2.26	0.05	0.95	2.01	12.49	4.47	43.75
1910	6.26	6.45	2.25	3.78	1.82	1.61	T	0.13	1.15	3.43	8.24	3.53	38.65
1911	8.53	3.34	0.63	2.11	3.95	0.87	0.01	0.28	5.19	0.99	2.64	4.74	33.28
1912	8.01	4.85	1.41	2.04	1.89	3.03	0.48	3.39	1.18	3.36	5.80	8.03	43.47
1913	6.25	1.13	4.04	2.94	1.63	4.24	0.24	0.76	2.58	3.62	5.39	3.48	36.30
1914	11.53	4.19	2.28	3.08	1.22	1.52	0.01	0.01	3.10	3.47	3.70	2.56	36.67
1915	5.90	3.07	2.15	2.03	2.59	1.47	1.52	0.01	0.53	1.98	11.32	8.73	41.30
1916	5.69	7.87	10.57	2.85	2.05	1.83	2.55	0.27	0.71	1.26	6.31	3.81	45.77
1917	2.54	3.32	5.33	5.36	2.31	1.17	0.01	T	1.96	0.03	4.24	14.23	40.50
1918	4.68	6.77	3.47	1.13	1.38	0.12	1.08	0.31	0.66	4.47	4.30	3.13	31.50
1919	9.08	8.36	4.64	3.60	1.95	0.91	0.23	0.10	3.18	1.43	7.44	4.78	45.70
1920	4.84	0.16	3.94	4.75	0.91	2.11	1.18	1.25	4.16	3.71	5.84	8.32	41.17
1921	7.82	7.21	4.28	2.26	0.99	1.36	T	0.30	3.08	2.78	10.04	3.09	43.21
1922	3.08	3.29	6.57	3.05	1.60	0.14	T	2.06	1.90	4.70	2.94	9.43	38.76
1923	9.57	1.81	1.83	1.90	1.48	1.19	2.17	0.26	0.59	1.61	4.15	6.25	32.81
1924	3.94	5.21	1.40	0.91	0.45	0.68	0.03	0.62	1.93	5.50	6.11	4.44	31.22
1925	6.94	6.46	1.76	1.92	0.74	0.73	T	0.71	1.50	0.02	5.44	5.14	31.36
1926	3.64	7.71	0.80	0.80	2.83	0.35	0.00	1.95	2.14	5.26	9.78	5.91	41.17
1927	9.18	6.95	2.11	1.69	2.24	2.68	0.95	0.35	5.52	2.65	7.99	3.47	45.78
1928	5.11	1.19	7.21	4.47	0.74	0.44	0.42	T	0.65	1.65	5.30	7.51	34.69
1929	3.70	1.00	2.90	4.06	1.14	2.19	0.02	0.23	0.31	1.33	0.67	8.79	26.34
1930	3.45	5.03	2.21	2.72	3.08	0.69	T	0.06	1.79	2.15	2.84	3.16	27.18
1931	4.30	2.40	8.12	2.40	1.09	3.13	T	0.04	2.10	4.32	6.38	8.40	42.68
1932	5.63	2.58	6.08	3.57	1.50	0.07	0.48	0.45	0.11	3.76	7.88	7.87	39.98
1933	7.94	4.26	5.10	0.95	3.59	2.60	T	0.86	2.97	4.59	2.54	17.45	52.85
1934	6.02	1.40	5.18	2.46	1.60	0.96	0.11	0.33	1.32	5.30	10.47	10.83	45.98
1935	3.45	3.17	5.28	2.48	0.61	0.50	0.28	0.20	0.86	3.20	3.27	5.89	29.19
1936	8.55	4.73	3.15	0.80	3.72	2.43	0.40	0.07	1.41	0.44	0.36	8.28	34.34
1937	6.07	6.36	2.81	6.22	1.06	3.88	0.20	1.41	2.06	2.91	10.08	13.86	56.92
1938	5.06	7.83	6.42	2.02	0.65	0.45	0.25	0.35	1.38	2.87	4.83	4.16	36.27
1939	4.69	5.26	2.29	0.55	1.08	1.73	0.79	1.52	0.60	2.14	1.73	8.37	30.75
1940	2.36	10.82	5.12	2.76	1.57	0.06	0.39	0.07	3.56	4.26	4.82	5.03	40.82
1941	5.24	1.45	2.01	1.56	4.97	1.05	T	1.63	3.58	2.45	4.62	10.38	38.94
1942	4.18	4.19	1.81	1.98	2.59	2.04	0.96	0.48	0.09	3.75	14.40	11.07	47.54
1943	6.30	4.04	7.26	2.56	1.65	3.04	0.59	1.19	0.09	6.21	2.20	3.03	38.16
1944	3.75	3.82	2.57	3.13	1.07	0.77	0.09	0.07	2.40	1.47	5.80	2.18	27.12
1945	4.13	5.25	7.12	2.95	4.46	0.41	0.60	0.52	3.99	1.73	10.47	6.04	47.67
1946	5.49	5.72	5.68	0.98	1.19	2.00	0.98	0.25	1.40	4.98	7.20	6.01	41.88
1947	4.28	3.12	5.29	2.09	0.87	2.95	1.30	0.27	0.96	9.70	3.31	4.79	38.93
1948	6.72	6.42	4.09	4.58	3.88	1.42	0.32	1.55	3.86	2.42	7.75	10.04	53.05
1949	0.90	11.43	3.33	0.89	2.77	0.44	0.62	0.15	1.23	2.72	6.15	5.44	36.07
1950	11.68	6.10	5.69	2.31	0.76	1.50	0.77	0.47	1.66	8.88	10.65	6.91	57.38
1951	9.58	4.90	4.70	1.24	1.61	0.03	0.13	0.13	2.89	6.90	6.42	6.64	45.17
1952	5.71	4.27	3.78	1.44	0.98	2.09	T	0.19	0.30	0.72	1.80	7.55	28.83
1953	14.67	4.20	4.77	1.95	2.61	2.49	0.06	2.84	1.77	2.75	6.71	9.20	54.02
1954	11.69	5.09	2.83	3.21	2.25	3.42	0.43	1.79	1.14	3.20	5.41	6.11	46.57
1955	2.80	3.66	4.46	5.67	1.10	1.32	1.14	T	3.22	6.98	8.87	11.02	50.24
1956	14.11	3.82	6.20	0.50	1.46	1.90	0.09	2.40	1.24	6.07	1.52	3.90	43.21
1957	2.97	4.41	8.37	1.98	2.18	0.98	0.23	0.39	0.59	3.17	3.99	9.20	38.46
1958	8.09	6.32	2.92	4.54	0.86	3.14	T	0.03	1.34	1.91	7.34	5.70	42.19
1959	9.19	4.93	4.61	1.58	3.73	2.80	0.61	0.07	2.78	4.00	3.57	3.73	41.60
1960	4.63	4.92	6.49	4.20	4.07	0.65	T	1.05	1.35	2.75	10.65	3.62	44.38
1961	4.98	10.99	8.28	3.29	3.35	0.49	0.35	0.98	0.80	4.04	5.45	6.74	49.74
1962	1.58	4.27	4.79	3.81	2.79	0.85	T	1.55	1.66	4.18	10.63	2.86	38.97
1963	3.00	4.42	6.66	4.72	3.58	2.40	1.43	1.01	1.12	3.35	7.25	4.70	43.64
1964	13.63	1.33	3.21	1.97	0.93	2.22	0.74	1.03	1.54	1.00	10.12	11.45	49.17
1965	8.92	2.08	1.49	2.32	1.33	0.85	0.34	0.86	0.04	2.21	7.26	9.95	37.65
1966	8.90	2.55	7.09	1.05	1.15	1.15	0.98	0.92	1.76	4.07	6.70	9.02	45.34
1967	8.64	2.55	5.66	3.42	1.23	0.91	0.00	T	0.79	6.12	3.25	6.40	38.97
1968	6.10	7.24	3.79	2.66	3.76	2.16	0.25	4.25	2.87	5.96	8.03	12.92	59.99
1969	10.70	3.72	1.31	3.16	1.52	2.70	0.04	0.27	4.87	4.05	3.56	10.07	45.97
1970	15.22	5.69	2.83	3.83	1.52	0.72	0.12	T	1.83	3.04	7.60	10.24	52.64
1971	9.18	5.35	5.96	3.35	1.14	2.17	0.22	0.48	4.16	2.98	6.87	11.74	53.60
1972	7.13	5.63	6.64	4.86	2.45	0.41	0.32	0.61	3.69	0.99	4.70	10.13	47.56
1973	4.49	2.27	2.97	1.07	1.22	2.11	0.05	1.66	3.76	3.81	13.46	9.88	46.75
1974	9.07	4.85	6.43	2.64	2.17	0.86	2.27	0.14	0.15	2.22	7.13	6.93	44.86
1975	8.83	6.03	5.02	2.48	1.97	1.22	0.41	2.84	T	5.67	4.71	6.74	45.92
1976	6.07	5.41	3.41	2.63	1.74	0.92	0.75	2.50	0.93	1.73	1.13	1.36	28.58
1977	1.26	2.71	4.10	0.63	4.39	0.99	1.05	3.57	4.69	3.51	5.87	10.20	42.97
1978	5.93	3.81	1.73	3.53	3.70	1.41	1.17	2.36	3.58	0.48	4.08	2.85	34.63
1979	3.04	7.00	2.58	2.83	2.18	0.39	0.25	1.03	2.25	5.87	4.58	7.35	39.35
1980	8.88	4.51	4.45	3.11	2.16	2.77	0.18	0.21	2.06	1.25	7.09	10.27	46.94
1981	1.67	3.84	2.74	3.11	1.81	4.03	0.21	0.04	2.76	4.57	5.99	10.34	41.11
1982	8.76	7.10	3.61	4.89	0.59	0.99	0.83	1.92	3.33	4.96	3.84	9.40	50.22
1983	7.71	9.05	7.31	2.44	2.38	2.04	2.94	2.01	0.47	1.92	10.73	5.78	54.78
1984	2.38	4.05	4.32	4.38	4.09	4.48	0.00	0.08	1.99	4.60	10.69	3.38	44.44
1985	0.27	2.64	4.06	1.14	0.88	2.28	0.12	0.99	2.71	3.05	4.41	2.20	24.75
1986	5.87	7.15	2.78	1.32	2.33	0.32	1.86	0.04	2.96	2.09	6.36	4.23	37.31
1987	7.33	2.99	6.50	2.45	1.88	0.20	1.56	0.46	0.36	0.28	1.97	9.19	35.17
1988	6.31	1.38	4.08	5.08	2.97	2.20	0.26	0.11	1.66	0.33	8.34	3.04	35.76
1989	4.43	2.64	8.74	1.63	3.57	0.97	1.01	1.11	1.13	1.68	4.46	3.82	35.19
1990	8.51	5.44	2.68	3.01	2.16	1.89	1.10	1.04	0.52	5.87	4.88	3.74	40.84
1991	3.66	4.92	4.52	4.02	4.13	2.43	0.12	0.93	0.10	2.17	7.44	4.88	39.32
1992	5.04	4.58	1.78	5.06	0.13	0.56	0.45	0.25	1.33	3.17	5.45	6.84	34.64
1993	3.60	0.96	5.20	6.31	4.02	1.94	1.42	0.18	T	1.44	1.79	6.86	33.72
1994	4.95	6.11	2.72	2.31	1.23	1.10	0.07	0.14	1.63	9.02	7.49	6.53	43.30
1995	7.44	5.22	5.02	4.19	1.13	2.29	0.98	1.69	2.14	4.35	11.71	7.84	54.00
1996	8.56	12.43	4.46	5.95	4.84	0.09	0.49	0.50	3.22	6.17	9.72	16.28	72.71
1997	8.86	2.14	8.24	3.78	2.46	1.62	0.64	1.55	2.84	7.58	5.19	4.01	48.91
1998	7.76	6.80	4.21	1.49	5.18	1.61	0.34	T	1.02	3.57	13.36	9.21	54.55
1999	8.97	11.39	5.67	1.61	2.59	2.45	0.38	1.12	0.19	2.89	7.67	7.67	52.60
2000	8.08	4.96	3.62	2.39	2.51	0.90	0.25	0.15	1.76	3.19	2.91	3.85	34.57
2001	1.99	1.79	3.73	3.09	1.12	1.40	0.46	0.87	0.66	4.37	7.44	7.83	34.75
2002	8.03	4.92	5.40	3.60	1.57	2.19	0.19	0.01	1.31	0.32	2.49	10.48	40.51
2003	9.14	3.17	5.16	7.03	1.60	0.11	T	0.06	1.50	2.30	5.38	10.43	45.88
2004	5.02	4.86	2.01	2.16	1.17	1.03	T	3.20	1.76	3.27	2.46	4.58	31.52
2005	2.03	1.13	4.73	4.44	5.06	2.56	0.41	0.22	1.37	4.26	6.54	10.20	42.95
2006	12.05	2.38	3.63	2.52	2.78	1.12	0.19	0.07	1.12	1.83	15.56	4.98	48.23
2007	2.10	3.78	3.07	2.02	1.06	1.11	0.54	0.51	1.06	1.50	5.33	11.27	33.35
2008	6.82	4.00	5.72	2.47	1.25	1.06	0.14	1.54	0.32	2.08	6.07	5.42	36.89
2009	5.50	1.74	3.97	2.96	3.93	0.99	0.25	0.77	1.57	3.47	7.00	4.88	37.03
2010	6.68	3.96	5.62	3.99	4.63	4.79	0.30	0.09	2.94	5.16	7.39	6.01	51.56
2011	3.80	4.03	4.90
Average	6.42	4.97	4.56	2.92	2.24	1.59	0.61	0.80	1.82	3.42	6.32	7.10	42.77
Normal	6.13	5.11	4.52	3.12	2.47	1.59	0.72	1.02	2.05	3.38	6.47	6.88	43.47
Max	15.22	13.36	12.76	7.88	6.60	5.38	2.94	4.25	5.52	11.63	15.77	20.14	72.71
Min	0.27	0.16	0.63	0.50	0.13	0.03	0.00	0.00	0.00	T	0.36	0.88	24.75
months with values in italics are missing official obs, precip estimated using OSU Prism data

 

					AVERAGES BASED ON
					1971-2000 PERIOD
					CELL LEGEND
					WETTER THAN NORMAL
					DRIER THAN NORMAL
Portland Airport Monthly Precipitation 1940-2010
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
1940											4.53	4.85
1941	5.27	1.59	1.74	1.66	4.27	0.81	0.03	1.45	3.58	2.18	5.04	9.11	36.73
1942	3.63	3.64	1.63	2.38	2.84	1.94	1.40	0.17	0.06	3.49	11.57	9.37	42.12
1943	5.50	3.27	5.54	2.21	1.42	2.80	0.32	1.39	0.06	5.59	2.20	2.70	33.00
1944	2.81	3.11	1.93	2.28	1.07	0.81	0.06	0.03	2.73	1.64	5.00	1.90	23.37
1945	4.10	4.36	5.30	2.42	4.57	0.07	0.51	0.37	3.96	2.11	8.58	5.60	41.95
1946	5.12	4.99	4.23	0.78	1.24	1.91	1.08	0.18	1.15	4.81	7.65	5.47	38.61
1947	3.72	2.77	4.11	1.81	0.66	2.93	0.94	0.29	1.06	8.04	4.08	4.64	35.05
1948	5.87	5.02	4.24	3.41	3.76	1.42	0.32	1.55	3.28	2.39	6.89	8.06	46.21
1949	1.02	9.46	2.78	0.72	2.12	0.68	0.91	0.24	1.66	2.35	5.56	4.86	32.36
1950	10.10	5.77	4.76	2.74	0.57	2.50	0.50	0.72	1.45	7.00	8.67	6.31	51.09
1951	7.71	5.02	3.86	1.14	1.75	0.03	0.28	0.02	2.55	6.81	5.31	5.06	39.54
1952	4.40	3.59	3.82	1.45	0.78	2.23	T	0.18	0.33	0.72	1.44	6.76	25.70
1953	12.83	3.71	3.82	1.89	3.45	2.04	0.03	1.79	1.16	3.56	6.46	7.85	48.59
1954	8.95	4.57	2.55	2.54	1.83	3.58	1.24	1.92	0.85	3.40	5.09	5.01	41.53
1955	2.30	3.37	3.06	4.72	1.24	1.83	0.89	T	2.86	6.69	7.34	10.14	44.44
1956	11.66	3.03	4.30	0.53	2.50	2.03	0.01	2.56	1.12	5.10	1.47	3.64	37.95
1957	2.23	4.14	7.52	1.84	1.97	0.73	0.19	0.69	0.49	3.53	3.07	6.15	32.55
1958	6.56	5.13	2.20	3.33	1.35	3.04	T	0.02	1.05	1.49	6.39	5.06	35.62
1959	7.57	4.18	3.22	0.92	2.89	2.38	0.56	0.09	2.81	3.51	3.30	3.08	34.51
1960	3.93	4.00	4.77	3.33	3.37	0.52	T	1.00	1.37	2.39	8.63	2.61	35.92
1961	4.50	8.92	6.04	3.59	2.80	0.47	0.42	1.07	0.64	2.89	4.67	5.94	41.95
1962	1.58	3.43	4.25	3.15	2.56	0.78	0.06	1.49	1.66	3.31	9.32	2.59	34.18
1963	2.27	3.48	4.69	3.78	2.74	1.71	1.17	0.87	0.75	3.04	5.64	3.60	33.74
1964	9.51	0.78	2.30	1.56	1.04	1.96	0.68	0.90	1.61	0.84	6.78	9.92	37.88
1965	7.44	2.22	1.10	2.20	1.31	0.83	0.44	0.73	0.01	2.03	5.64	7.34	31.29
1966	5.74	1.70	4.71	0.85	0.91	1.02	1.19	0.59	1.70	3.06	5.50	6.89	33.86
1967	6.21	2.02	4.31	2.17	1.02	1.01	0.00	T	0.76	4.72	2.27	4.75	29.24
1968	4.58	6.64	2.68	1.91	3.63	2.20	0.14	4.53	2.20	5.03	6.23	11.12	50.89
1969	7.60	3.14	1.13	2.28	1.61	2.99	0.14	0.04	3.86	3.02	3.18	8.12	37.11
1970	11.81	4.77	2.58	2.94	1.55	0.49	0.05	T	1.10	2.85	5.72	7.49	41.35
1971	7.09	3.36	4.87	2.72	1.00	1.76	0.26	0.95	3.53	2.37	5.76	8.05	41.72
1972	5.71	4.08	5.41	2.98	2.23	0.68	0.56	0.67	3.06	0.87	3.78	8.79	38.82
1973	3.69	1.94	2.45	1.33	1.43	1.45	0.06	1.41	3.29	3.14	11.55	9.93	41.67
1974	8.51	4.61	5.65	1.76	1.74	0.80	2.01	0.07	0.21	2.14	6.73	6.05	40.28
1975	8.43	4.75	3.45	1.88	1.35	1.13	0.43	2.10	T	4.76	4.10	6.68	39.06
1976	5.14	4.92	2.93	2.34	2.29	0.78	0.66	3.29	0.73	1.48	0.77	1.38	26.71
1977	1.07	2.49	3.50	1.04	4.30	0.83	0.39	3.26	3.33	2.28	5.56	8.98	37.03
1978	4.85	3.28	1.49	3.96	3.17	1.69	1.36	2.05	2.07	0.36	3.83	2.51	30.62
1979	2.55	6.53	2.51	2.47	2.41	0.64	0.25	1.18	1.75	4.85	3.38	7.23	35.75
1980	8.51	4.01	3.11	2.58	2.19	2.50	0.19	0.39	1.56	1.18	6.47	9.72	42.41
1981	1.47	3.86	2.33	1.79	2.25	3.23	0.24	0.15	1.86	4.12	4.62	8.37	34.29
1982	6.31	5.98	2.38	3.56	0.46	1.66	0.94	1.66	3.98	4.44	3.51	8.16	43.04
1983	6.23	7.78	6.80	1.87	1.30	1.95	2.68	2.29	0.39	1.95	8.65	5.30	47.19
1984	2.01	3.93	3.19	3.20	3.41	4.06	T	0.09	1.46	3.85	9.74	2.56	37.50
1985	0.06	1.79	3.08	1.07	1.52	2.34	0.55	0.48	2.76	2.75	3.89	2.19	22.48
1986	4.65	5.31	2.60	1.91	2.19	0.23	1.20	0.10	4.30	1.99	6.26	4.30	35.04
1987	6.93	2.45	4.91	1.94	1.63	0.14	1.03	0.35	0.30	0.27	1.96	8.00	29.91
1988	4.95	1.17	3.13	4.57	2.53	2.34	0.69	0.10	1.76	0.19	7.92	2.37	31.72
1989	3.30	2.84	6.73	2.08	2.87	0.78	0.91	1.07	1.48	1.73	3.18	3.08	30.05
1990	7.95	3.43	2.52	2.31	2.37	1.94	0.32	0.95	0.34	4.65	3.68	2.40	32.86
1991	2.56	3.65	4.64	4.05	3.34	2.31	0.97	0.70	0.02	1.51	6.36	4.34	34.45
1992	4.31	4.12	1.87	3.82	0.10	0.60	0.67	0.49	1.12	2.87	4.55	4.98	29.50
1993	3.06	0.72	4.39	5.26	4.36	1.69	2.41	0.37	T	1.59	1.50	5.01	30.36
1994	3.56	4.92	1.84	1.91	0.56	1.67	0.07	0.13	1.13	8.41	5.91	4.85	34.96
1995	5.56	3.19	3.82	3.49	1.65	2.62	1.23	0.81	1.31	3.15	10.74	5.91	43.48
1996	7.15	10.03	3.24	5.12	4.88	0.44	0.73	0.25	3.05	5.38	9.58	13.35	63.20
1997	7.32	1.63	7.14	3.73	3.63	2.83	0.52	1.58	1.98	6.40	4.02	3.03	43.81
1998	6.77	5.27	4.06	1.04	5.55	1.73	0.59	T	1.09	2.16	11.02	6.74	46.02
1999	6.63	8.73	4.03	1.56	1.97	1.73	0.51	0.75	0.10	2.44	6.81	3.62	38.88
2000	5.66	4.50	3.21	1.82	2.70	1.19	0.15	0.12	1.67	3.25	2.46	3.47	30.20
2001	1.47	1.29	3.11	2.85	0.91	1.79	0.95	0.74	0.70	3.12	6.89	6.62	30.44
2002	6.22	3.55	3.40	2.34	1.86	1.57	0.19	0.04	1.54	0.63	1.91	8.00	31.25
2003	7.64	2.37	5.75	4.37	1.49	0.31	T	0.19	0.85	3.01	4.09	7.45	37.52
2004	4.86	3.95	1.53	1.01	1.78	1.12	0.04	2.68	1.03	3.36	2.38	3.91	27.65
2005	1.94	1.30	3.77	3.49	4.34	2.21	0.41	1.05	1.70	3.39	4.98	7.52	36.10
2006	10.92	2.15	2.96	2.46	3.00	0.92	0.47	0.10	0.86	1.39	11.92	5.85	43.00
2007	2.72	3.47	3.20	2.01	1.45	1.08	0.55	0.46	2.04	3.26	4.25	7.57	32.06
2008	4.71	2.19	3.71	2.08	2.02	1.00	0.29	1.23	0.48	1.77	4.15	3.52	27.15
2009	4.50	1.36	3.36	2.31	3.26	1.30	0.34	0.76	1.40	3.02	5.13	3.76	30.50
2010	4.94	2.76	3.58	2.92	4.68	4.27	0.59	0.23	3.36	3.87	6.63	8.35	46.18
2011	4.73	4.29	6.43
Avg	5.40	3.88	3.68	2.45	2.27	1.59	0.61	0.91	1.64	3.16	5.55	5.91	36.90
Norm	5.07	4.18	3.71	2.64	2.38	1.59	0.72	0.93	1.65	2.88	5.61	5.71	37.07
Max	12.83	10.03	7.52	5.26	5.55	4.27	2.68	4.53	4.30	8.41	11.92	13.35	63.20
Min	0.06	0.72	1.10	0.53	0.10	0.03	0.00	T	T	0.19	0.77	1.38	22.48