60 Degree Days | 70 Degree Days | 80 Degree Days | 90 Degree Days | 32 Degree Days |
Average Monthly Highs | Average Monthly Lows | Monthly Rainfall | Monthly Rain Days |
Frequency of 60 Degree or Higher Days in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Number of Days over 60 degrees | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 1 | 9 | 14 | 21 | 26 | 31 | 31 | 30 | 23 | 5 | 2 | 193 | |
2009 | 5 | 13 | 28 | 30 | 31 | 31 | 30 | 23 | 5 | 196 | |||
2008 | 5 | 3 | 7 | 24 | 24 | 30 | 31 | 30 | 23 | 5 | 182 | ||
2007 | 1 | 11 | 15 | 25 | 30 | 31 | 31 | 28 | 18 | 4 | 1 | 195 | |
2006 | 5 | 22 | 27 | 30 | 31 | 31 | 30 | 20 | 4 | 1 | 201 | ||
2005 | 1 | 6 | 15 | 11 | 29 | 30 | 31 | 31 | 30 | 22 | 1 | 1 | 208 |
2004 | 16 | 23 | 29 | 30 | 31 | 31 | 29 | 17 | 1 | 207 | |||
2003 | 2 | 1 | 7 | 12 | 24 | 30 | 31 | 31 | 30 | 25 | 2 | 195 | |
2002 | 1 | 2 | 4 | 15 | 21 | 30 | 31 | 31 | 29 | 23 | 5 | 1 | 193 |
2001 | 9 | 10 | 26 | 28 | 31 | 31 | 30 | 19 | 2 | 186 | |||
2000 | 5 | 19 | 24 | 28 | 31 | 31 | 30 | 20 | 1 | 189 | |||
1999 | 5 | 12 | 20 | 26 | 31 | 31 | 30 | 23 | 6 | 184 | |||
1998 | 9 | 11 | 19 | 30 | 31 | 31 | 30 | 18 | 2 | 181 | |||
1997 | 1 | 8 | 12 | 30 | 30 | 31 | 31 | 30 | 20 | 8 | 201 | ||
1996 | 5 | 4 | 16 | 24 | 29 | 31 | 31 | 30 | 14 | 2 | 186 | ||
1995 | 2 | 8 | 12 | 13 | 28 | 28 | 31 | 31 | 30 | 24 | 9 | 1 | 217 |
1994 | 17 | 23 | 30 | 30 | 31 | 31 | 30 | 24 | 216 | ||||
1993 | 12 | 16 | 29 | 30 | 31 | 31 | 30 | 30 | 1 | 2 | 212 | ||
1992 | 1 | 8 | 23 | 21 | 30 | 30 | 31 | 31 | 30 | 23 | 228 | ||
1991 | 2 | 10 | 6 | 12 | 18 | 29 | 31 | 31 | 30 | 21 | 3 | 193 | |
1990 | 1 | 5 | 16 | 22 | 26 | 30 | 31 | 31 | 30 | 23 | 4 | 219 | |
1989 | 1 | 5 | 24 | 26 | 30 | 31 | 31 | 30 | 22 | 6 | 1 | 207 | |
1988 | 5 | 8 | 13 | 25 | 30 | 31 | 31 | 30 | 31 | 2 | 1 | 207 | |
1987 | 1 | 9 | 21 | 29 | 30 | 31 | 31 | 30 | 31 | 6 | 1 | 220 | |
1986 | 1 | 6 | 17 | 12 | 20 | 30 | 31 | 31 | 26 | 28 | 4 | 206 | |
1985 | 1 | 5 | 20 | 28 | 29 | 31 | 31 | 30 | 21 | 3 | 199 | ||
1984 | 4 | 12 | 10 | 26 | 30 | 31 | 31 | 29 | 13 | 1 | 187 | ||
1983 | 1 | 10 | 19 | 27 | 30 | 31 | 31 | 30 | 26 | 4 | 209 | ||
1982 | 3 | 11 | 13 | 27 | 30 | 31 | 31 | 29 | 22 | 1 | 1 | 199 | |
1981 | 1 | 7 | 14 | 16 | 25 | 29 | 31 | 31 | 29 | 24 | 12 | 219 | |
Total | 17 | 77 | 292 | 467 | 765 | 876 | 929 | 930 | 889 | 671 | 108 | 14 | 6035 |
30 yr Avg | 0.6 | 2.6 | 9.7 | 15.6 | 25.5 | 29.2 | 31.0 | 31.0 | 29.6 | 22.4 | 3.6 | 0.5 | 201.2 |
Odds of 60 | 1.9% | 8.6% | 32.4% | 51.9% | 85.0% | 97.3% | 100.0% | 100.0% | 98.8% | 74.6% | 12.0% | 1.6% | 55.1% |
Frequency of 70 Degree or Higher Days in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Number of Days over 70 degrees | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 1 | 1 | 7 | 13 | 26 | 28 | 21 | 5 | 102 | ||||
2009 | 6 | 18 | 24 | 29 | 27 | 25 | 2 | 131 | |||||
2008 | 3 | 12 | 16 | 29 | 27 | 22 | 3 | 112 | |||||
2007 | 2 | 2 | 14 | 16 | 31 | 28 | 16 | 1 | 110 | ||||
2006 | 6 | 14 | 25 | 29 | 27 | 23 | 7 | 131 | |||||
2005 | 4 | 2 | 11 | 15 | 30 | 31 | 24 | 2 | 119 | ||||
2004 | 4 | 11 | 11 | 18 | 31 | 28 | 20 | 10 | 133 | ||||
2003 | 2 | 13 | 20 | 31 | 30 | 22 | 13 | 131 | |||||
2002 | 3 | 9 | 22 | 30 | 30 | 25 | 6 | 125 | |||||
2001 | 3 | 15 | 16 | 25 | 30 | 24 | 6 | 119 | |||||
2000 | 1 | 9 | 10 | 23 | 28 | 28 | 21 | 5 | 125 | ||||
1999 | 1 | 6 | 7 | 13 | 25 | 25 | 24 | 11 | 1 | 113 | |||
1998 | 1 | 7 | 4 | 18 | 27 | 30 | 26 | 6 | 119 | ||||
1997 | 1 | 3 | 17 | 19 | 29 | 30 | 21 | 2 | 122 | ||||
1996 | 6 | 3 | 21 | 29 | 29 | 15 | 9 | 112 | |||||
1995 | 2 | 5 | 17 | 17 | 30 | 28 | 22 | 4 | 125 | ||||
1994 | 5 | 5 | 17 | 23 | 29 | 31 | 27 | 9 | 146 | ||||
1993 | 1 | 19 | 17 | 23 | 28 | 27 | 9 | 124 | |||||
1992 | 3 | 8 | 24 | 26 | 29 | 29 | 20 | 6 | 145 | ||||
1991 | 1 | 3 | 4 | 10 | 30 | 28 | 26 | 17 | 119 | ||||
1990 | 2 | 8 | 8 | 20 | 29 | 29 | 26 | 2 | 124 | ||||
1989 | 12 | 13 | 20 | 24 | 28 | 25 | 6 | 128 | |||||
1988 | 1 | 2 | 5 | 9 | 19 | 25 | 29 | 19 | 9 | 118 | |||
1987 | 2 | 9 | 16 | 24 | 24 | 31 | 23 | 16 | 145 | ||||
1986 | 1 | 4 | 12 | 23 | 24 | 31 | 16 | 11 | 122 | ||||
1985 | 9 | 12 | 24 | 30 | 29 | 17 | 3 | 124 | |||||
1984 | 1 | 7 | 16 | 30 | 31 | 21 | 6 | 112 | |||||
1983 | 7 | 13 | 16 | 26 | 30 | 21 | 2 | 115 | |||||
1982 | 1 | 2 | 16 | 21 | 25 | 29 | 19 | 6 | 119 | ||||
1981 | 5 | 10 | 15 | 29 | 29 | 21 | 3 | 112 | |||||
Total | 0 | 1 | 36 | 152 | 362 | 570 | 836 | 868 | 659 | 197 | 1 | 0 | 3682 |
30 yr Avg | 0 | 0.0 | 1.2 | 5.1 | 12.1 | 19.0 | 27.9 | 28.9 | 22.0 | 6.6 | 0.0 | 0.0 | 122.7 |
Odds of 70 | 0.1% | 4.0% | 16.9% | 40.2% | 63.3% | 92.9% | 96.4% | 73.2% | 21.9% | 0.1% |
Frequency of 80 Degree or Higher Days in Portland from 1981 to 2010 | ||||||||||||||||
Portland Airport Data --- Year vs Number of Days over 80 degrees | ||||||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total | |||
2010 | 4 | 16 | 12 | 4 | 1 | 37 | ||||||||||
2009 | 2 | 7 | 7 | 22 | 16 | 10 | 64 | |||||||||
2008 | 5 | 7 | 20 | 16 | 13 | 61 | ||||||||||
2007 | 6 | 6 | 19 | 11 | 7 | 49 | ||||||||||
2006 | 1 | 5 | 9 | 18 | 16 | 16 | 65 | |||||||||
2005 | 3 | 3 | 18 | 22 | 4 | 50 | ||||||||||
2004 | 5 | 3 | 11 | 22 | 20 | 1 | 2 | 64 | ||||||||
2003 | 3 | 12 | 23 | 19 | 13 | 1 | 71 | *Latest 80 ever (Oct 21,2003) | ||||||||
2002 | 1 | 8 | 15 | 18 | 12 | 1 | 55 | |||||||||
2001 | 1 | 7 | 4 | 12 | 17 | 12 | 1 | 54 | ||||||||
2000 | 1 | 11 | 14 | 13 | 5 | 44 | ||||||||||
1999 | 2 | 5 | 18 | 16 | 12 | 53 | ||||||||||
1998 | 3 | 2 | 6 | 17 | 19 | 17 | 64 | |||||||||
1997 | 8 | 2 | 16 | 21 | 10 | 57 | ||||||||||
1996 | 6 | 21 | 17 | 5 | 1 | 50 | ||||||||||
1995 | 7 | 11 | 19 | 15 | 14 | 66 | ||||||||||
1994 | 6 | 8 | 23 | 23 | 15 | 75 | ||||||||||
1993 | 4 | 3 | 4 | 12 | 15 | 2 | 40 | |||||||||
1992 | 1 | 11 | 13 | 14 | 21 | 9 | 69 | |||||||||
1991 | 3 | 20 | 20 | 18 | 6 | 67 | ||||||||||
1990 | 1 | 2 | 4 | 21 | 18 | 10 | 56 | |||||||||
1989 | 2 | 1 | 9 | 7 | 7 | 16 | 42 | |||||||||
1988 | 1 | 2 | 6 | 17 | 14 | 11 | 1 | 52 | ||||||||
1987 | 2 | 7 | 16 | 10 | 20 | 14 | 5 | 74 | ||||||||
1986 | 6 | 14 | 7 | 25 | 6 | 58 | ||||||||||
1985 | 3 | 10 | 28 | 16 | 1 | 58 | ||||||||||
1984 | 2 | 4 | 15 | 16 | 8 | 1 | 46 | |||||||||
1983 | 7 | 4 | 8 | 15 | 2 | 36 | ||||||||||
1982 | 2 | 12 | 14 | 13 | 9 | 50 | ||||||||||
1981 | 1 | 3 | 9 | 20 | 12 | 45 | ||||||||||
Total | 0 | 0 | 0 | 19 | 114 | 221 | 487 | 508 | 301 | 22 | 0 | 0 | 1672 | |||
30 Yr Avg | 0.0 | 0.0 | 0.0 | 0.6 | 3.8 | 7.4 | 16.2 | 16.9 | 10.0 | 0.7 | 0.0 | 0.0 | 55.7 | |||
Odds of 80 | 0.0% | 0.0% | 0.0% | 2.1% | 12.3% | 24.6% | 52.4% | 54.6% | 33.4% | 2.4% | 0.0% | 0.0% |
Frequency of 90 Degree or Higher Days in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Number of Days over 90 degrees | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 4 | 7 | 11 | ||||||||||
2009 | 1 | 14 | 7 | 2 | 24 | ||||||||
2008 | 2 | 1 | 5 | 5 | 2 | 15 | |||||||
2007 | 1 | 3 | 4 | 1 | 9 | ||||||||
2006 | 1 | 4 | 6 | 8 | 2 | 21 | |||||||
2005 | 1 | 7 | 7 | 15 | |||||||||
2004 | 3 | 4 | 5 | 12 | |||||||||
2003 | 6 | 8 | 3 | 5 | 22 | ||||||||
2002 | 4 | 4 | 4 | 12 | |||||||||
2001 | 2 | 1 | 3 | 6 | |||||||||
2000 | 3 | 2 | 5 | ||||||||||
1999 | 1 | 1 | 3 | 5 | |||||||||
1998 | 1 | 6 | 6 | 2 | 15 | ||||||||
1997 | 1 | 6 | 2 | 9 | |||||||||
1996 | 1 | 12 | 9 | 22 | |||||||||
1995 | 2 | 4 | 2 | 2 | 10 | ||||||||
1994 | 7 | 2 | 4 | 13 | |||||||||
1993 | 3 | 4 | 7 | ||||||||||
1992 | 2 | 4 | 5 | 6 | 17 | ||||||||
1991 | 4 | 5 | 7 | 16 | |||||||||
1990 | 1 | 9 | 7 | 3 | 20 | ||||||||
1989 | 1 | 4 | 5 | ||||||||||
1988 | 6 | 6 | 4 | 1 | 17 | ||||||||
1987 | 3 | 4 | 4 | 8 | 3 | 1 | 23 | ||||||
1986 | 2 | 1 | 12 | 2 | 17 | ||||||||
1985 | 2 | 11 | 6 | 19 | |||||||||
1984 | 4 | 3 | 7 | ||||||||||
1983 | 1 | 1 | 1 | 3 | |||||||||
1982 | 5 | 2 | 6 | 1 | 14 | ||||||||
1981 | 4 | 10 | 3 | 17 | |||||||||
Total | 0 | 0 | 0 | 1 | 15 | 43 | 139 | 152 | 56 | 2 | 0 | 0 | 408 |
30 yr Avg | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 1.4 | 4.6 | 5.1 | 1.9 | 0.1 | 0.0 | 0.0 | 13.6 |
Odds of 90 | 0.1% | 1.6% | 4.8% | 14.9% | 14.9% | 6.2% | 0.2% |
Frequency of 32 Degree Low Temperatures in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Number of Nights Below 32 degrees | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 4 | 1 | 5 | 2 | 12 | ||||||||
2009 | 16 | 17 | 3 | 1 | 19 | 56 | |||||||
2008 | 9 | 6 | 1 | 1 | 14 | 31 | |||||||
2007 | 16 | 3 | 2 | 2 | 5 | 6 | 34 | ||||||
2006 | 10 | 6 | 2 | 3 | 12 | 33 | |||||||
2005 | 10 | 14 | 8 | 11 | 43 | ||||||||
2004 | 11 | 2 | 5 | 3 | 21 | ||||||||
2003 | 4 | 11 | 1 | 1 | 6 | 3 | 26 | ||||||
2002 | 4 | 8 | 5 | 1 | 7 | 4 | 29 | ||||||
2001 | 6 | 11 | 1 | 3 | 6 | 27 | |||||||
2000 | 10 | 6 | 4 | 11 | 9 | 40 | |||||||
1999 | 6 | 2 | 2 | 1 | 6 | 17 | |||||||
1998 | 6 | 2 | 3 | 8 | 19 | ||||||||
1997 | 9 | 11 | 1 | 3 | 6 | 30 | |||||||
1996 | 4 | 9 | 3 | 3 | 9 | 28 | |||||||
1995 | 5 | 4 | 3 | 2 | 3 | 7 | 24 | ||||||
1994 | 5 | 9 | 3 | 6 | 9 | 32 | |||||||
1993 | 20 | 15 | 3 | 14 | 14 | 66 | |||||||
1992 | 7 | 3 | 1 | 2 | 10 | 23 | |||||||
1991 | 19 | 3 | 1 | 1 | 2 | 6 | 32 | ||||||
1990 | 7 | 8 | 3 | 1 | 14 | 33 | |||||||
1989 | 7 | 14 | 5 | 1 | 1 | 14 | 42 | ||||||
1988 | 13 | 7 | 5 | 1 | 1 | 5 | 32 | ||||||
1987 | 15 | 4 | 1 | 2 | 17 | 39 | |||||||
1986 | 5 | 9 | 3 | 9 | 26 | ||||||||
1985 | 25 | 11 | 5 | 2 | 16 | 25 | 84 | ||||||
1984 | 11 | 5 | 1 | 2 | 8 | 27 | |||||||
1983 | 9 | 3 | 1 | 12 | 25 | ||||||||
1982 | 7 | 7 | 4 | 1 | 9 | 9 | 37 | ||||||
1981 | 5 | 12 | 3 | 1 | 2 | 7 | 30 | ||||||
Total | 271 | 230 | 71 | 11 | 0 | 0 | 0 | 0 | 0 | 10 | 121 | 284 | 998 |
30 yr Avg | 9.0 | 7.7 | 2.4 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 4.0 | 9.5 | 33.3 |
Odds of 32 | 29.1% | 27.4% | 7.6% | 1.2% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 1.1% | 13.0% | 30.5% | 9.1% |
Average Monthly High Temperatures in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Monthly Average High Temperatures | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 49.65 | 54.14 | 56.84 | 59.13 | 63.23 | 68.77 | 79.03 | 79.52 | 73.00 | 63.45 | 50.33 | 46.65 | 62.03 |
2009 | 46.19 | 50.25 | 52.52 | 62.33 | 71.48 | 74.83 | 86.23 | 80.55 | 77.20 | 62.32 | 54.07 | 41.65 | 63.37 |
2008 | 43.94 | 52.41 | 52.94 | 56.67 | 67.48 | 71.77 | 80.45 | 80.00 | 77.33 | 62.23 | 55.10 | 42.77 | 61.94 |
2007 | 44.39 | 50.43 | 57.71 | 60.37 | 69.55 | 72.13 | 81.55 | 78.58 | 72.80 | 61.10 | 52.00 | 45.48 | 62.25 |
2006 | 50.13 | 49.25 | 53.68 | 62.87 | 70.19 | 76.23 | 82.48 | 81.23 | 77.67 | 63.48 | 52.47 | 45.26 | 63.82 |
2005 | 47.87 | 53.75 | 60.10 | 60.30 | 68.45 | 70.27 | 81.48 | 83.29 | 73.47 | 62.68 | 50.03 | 44.26 | 63.07 |
2004 | 42.61 | 51.72 | 60.43 | 67.33 | 68.45 | 75.77 | 83.42 | 82.26 | 71.23 | 64.03 | 51.97 | 48.19 | 63.99 |
2003 | 50.71 | 51.61 | 55.81 | 58.20 | 66.52 | 77.33 | 84.68 | 81.71 | 78.37 | 66.00 | 51.53 | 47.16 | 64.21 |
2002 | 45.61 | 52.46 | 52.13 | 60.93 | 64.58 | 74.97 | 81.71 | 81.35 | 76.53 | 63.74 | 55.17 | 48.48 | 63.19 |
2001 | 46.81 | 50.32 | 56.65 | 57.93 | 71.55 | 70.53 | 77.03 | 80.13 | 76.27 | 62.29 | 53.70 | 46.90 | 62.59 |
2000 | 45.13 | 50.24 | 53.90 | 64.13 | 65.97 | 76.37 | 78.39 | 78.65 | 73.90 | 63.23 | 49.50 | 45.52 | 62.10 |
1999 | 47.90 | 49.25 | 52.71 | 60.33 | 63.90 | 69.30 | 78.19 | 78.48 | 78.17 | 65.48 | 56.00 | 49.06 | 62.47 |
1998 | 47.77 | 51.79 | 56.19 | 62.10 | 62.68 | 72.33 | 80.74 | 82.68 | 79.07 | 62.13 | 53.43 | 45.52 | 63.09 |
1997 | 45.68 | 50.93 | 54.42 | 59.40 | 72.65 | 71.63 | 79.32 | 82.68 | 75.73 | 60.74 | 55.87 | 46.10 | 63.00 |
1996 | 45.06 | 49.24 | 55.87 | 61.70 | 62.68 | 74.30 | 84.74 | 82.19 | 71.23 | 61.81 | 51.17 | 46.74 | 62.27 |
1995 | 48.16 | 54.93 | 57.55 | 60.60 | 71.61 | 74.07 | 81.61 | 78.94 | 77.57 | 63.32 | 57.10 | 47.42 | 64.45 |
1994 | 50.10 | 47.61 | 60.94 | 63.70 | 71.29 | 73.70 | 84.61 | 82.10 | 79.40 | 64.42 | 48.30 | 47.55 | 64.59 |
1993 | 42.19 | 47.25 | 56.71 | 59.90 | 71.26 | 71.63 | 72.77 | 79.65 | 80.07 | 67.74 | 49.20 | 48.00 | 62.29 |
1992 | 50.48 | 56.21 | 63.74 | 64.30 | 76.61 | 79.47 | 81.68 | 82.94 | 73.50 | 64.52 | 52.03 | 44.03 | 65.83 |
1991 | 46.61 | 57.71 | 54.58 | 59.50 | 62.32 | 68.33 | 82.42 | 81.58 | 81.40 | 66.84 | 53.23 | 47.81 | 63.55 |
1990 | 48.97 | 48.71 | 58.84 | 64.40 | 65.65 | 73.10 | 83.77 | 82.10 | 78.03 | 62.45 | 54.43 | 39.97 | 63.44 |
1989 | 47.84 | 43.50 | 52.65 | 66.77 | 67.65 | 74.90 | 75.00 | 75.48 | 79.70 | 63.58 | 55.00 | 45.94 | 62.41 |
1988 | 44.35 | 53.62 | 56.68 | 60.63 | 65.84 | 73.03 | 80.90 | 80.90 | 76.93 | 66.81 | 52.73 | 47.55 | 63.36 |
1987 | 45.68 | 52.68 | 56.68 | 64.73 | 71.13 | 79.33 | 77.35 | 84.10 | 78.50 | 71.87 | 55.60 | 44.16 | 65.21 |
1986 | 49.26 | 50.86 | 60.48 | 59.53 | 67.29 | 77.40 | 75.42 | 86.19 | 70.67 | 67.13 | 53.73 | 46.35 | 63.78 |
1985 | 43.16 | 48.61 | 54.81 | 63.27 | 68.19 | 75.43 | 87.48 | 81.00 | 70.57 | 61.65 | 42.87 | 39.23 | 61.44 |
1984 | 48.58 | 52.66 | 59.10 | 57.93 | 64.81 | 71.20 | 80.90 | 81.06 | 73.77 | 59.77 | 52.47 | 42.77 | 62.12 |
1983 | 50.39 | 53.29 | 57.74 | 62.97 | 70.42 | 70.87 | 75.23 | 78.81 | 71.93 | 63.65 | 53.90 | 40.19 | 62.50 |
1982 | 44.06 | 50.25 | 57.90 | 58.63 | 68.81 | 76.67 | 77.97 | 79.58 | 73.20 | 63.77 | 51.33 | 47.23 | 62.52 |
1981 | 51.16 | 51.82 | 58.39 | 61.40 | 66.16 | 70.47 | 78.23 | 85.45 | 76.53 | 62.35 | 56.43 | 47.87 | 63.93 |
30 yr Avg | 47.01 | 51.25 | 56.62 | 61.40 | 67.95 | 73.54 | 80.49 | 81.11 | 75.79 | 63.82 | 52.69 | 45.53 | 63.16 |
Average Monthly Low Temperatures in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Monthly Average Low Temperatures | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 40.45 | 39.00 | 39.65 | 42.77 | 46.84 | 52.10 | 55.94 | 56.77 | 55.87 | 46.71 | 39.57 | 38.48 | 46.22 |
2009 | 33.90 | 32.43 | 38.10 | 42.23 | 48.74 | 56.60 | 60.58 | 59.26 | 55.07 | 47.00 | 41.37 | 29.61 | 45.48 |
2008 | 33.65 | 37.34 | 37.94 | 40.33 | 50.26 | 51.87 | 56.81 | 59.23 | 53.13 | 44.87 | 43.33 | 32.13 | 45.09 |
2007 | 31.87 | 38.00 | 42.52 | 42.97 | 47.61 | 53.57 | 59.87 | 57.97 | 52.03 | 45.13 | 37.63 | 36.35 | 45.51 |
2006 | 41.00 | 34.71 | 38.48 | 43.55 | 49.32 | 56.50 | 59.45 | 57.16 | 52.73 | 44.55 | 42.27 | 34.71 | 46.25 |
2005 | 35.61 | 33.25 | 39.84 | 44.23 | 51.81 | 53.67 | 59.06 | 58.13 | 51.47 | 49.87 | 37.07 | 35.29 | 45.87 |
2004 | 34.29 | 38.76 | 42.03 | 45.30 | 51.74 | 55.17 | 59.61 | 60.68 | 54.30 | 48.52 | 39.67 | 38.26 | 47.39 |
2003 | 38.77 | 36.96 | 42.13 | 43.40 | 48.06 | 54.80 | 58.48 | 58.39 | 55.07 | 50.39 | 38.93 | 37.81 | 47.00 |
2002 | 36.71 | 36.29 | 37.58 | 43.57 | 46.77 | 54.30 | 57.90 | 57.19 | 53.07 | 44.52 | 39.97 | 38.29 | 45.56 |
2001 | 35.45 | 33.57 | 39.39 | 41.30 | 47.29 | 51.53 | 55.97 | 58.29 | 53.90 | 44.77 | 42.23 | 36.97 | 45.13 |
2000 | 34.52 | 37.10 | 37.29 | 43.90 | 49.06 | 54.13 | 57.23 | 56.87 | 53.90 | 47.19 | 36.03 | 35.16 | 45.22 |
1999 | 37.74 | 38.11 | 38.87 | 40.97 | 45.90 | 53.03 | 56.06 | 59.52 | 50.97 | 44.74 | 44.23 | 38.68 | 45.78 |
1998 | 38.13 | 40.36 | 41.26 | 43.40 | 49.77 | 54.37 | 61.16 | 59.29 | 54.73 | 46.52 | 44.43 | 35.48 | 47.45 |
1997 | 36.29 | 34.86 | 38.94 | 42.63 | 51.71 | 53.70 | 58.42 | 60.35 | 56.03 | 46.65 | 43.70 | 36.06 | 46.68 |
1996 | 36.19 | 33.97 | 39.39 | 45.23 | 47.77 | 52.93 | 59.29 | 58.45 | 52.37 | 46.06 | 39.67 | 36.52 | 45.70 |
1995 | 38.48 | 37.96 | 39.03 | 41.90 | 49.84 | 53.37 | 59.52 | 55.61 | 56.60 | 45.74 | 46.23 | 37.42 | 46.85 |
1994 | 38.77 | 34.07 | 39.48 | 44.67 | 50.03 | 52.13 | 57.48 | 58.23 | 55.77 | 43.84 | 37.03 | 37.00 | 45.79 |
1993 | 30.77 | 32.79 | 39.10 | 45.20 | 50.90 | 53.37 | 55.84 | 57.32 | 51.17 | 47.00 | 33.77 | 34.71 | 44.41 |
1992 | 38.52 | 39.97 | 40.81 | 46.50 | 49.58 | 55.23 | 58.68 | 56.65 | 50.97 | 47.23 | 40.47 | 34.58 | 46.61 |
1991 | 31.16 | 39.89 | 37.77 | 42.00 | 47.06 | 51.40 | 57.26 | 58.48 | 53.30 | 43.87 | 41.83 | 37.58 | 45.16 |
1990 | 37.68 | 35.04 | 39.87 | 44.63 | 47.84 | 54.00 | 58.52 | 59.58 | 56.00 | 45.19 | 42.30 | 29.35 | 45.88 |
1989 | 36.65 | 28.50 | 38.48 | 45.20 | 48.26 | 53.57 | 55.90 | 56.58 | 50.80 | 46.10 | 42.10 | 34.61 | 44.83 |
1988 | 33.65 | 35.76 | 37.71 | 43.67 | 46.90 | 51.77 | 55.90 | 54.97 | 51.03 | 49.84 | 42.17 | 36.39 | 45.01 |
1987 | 33.52 | 37.68 | 40.74 | 43.60 | 49.61 | 53.63 | 56.94 | 56.94 | 52.43 | 44.55 | 41.93 | 33.87 | 45.49 |
1986 | 35.68 | 36.36 | 42.00 | 40.87 | 47.90 | 55.20 | 55.13 | 58.39 | 52.33 | 46.81 | 41.63 | 34.68 | 45.64 |
1985 | 28.94 | 33.46 | 36.71 | 44.43 | 48.29 | 53.27 | 60.74 | 57.45 | 50.97 | 43.84 | 31.57 | 26.84 | 43.10 |
1984 | 35.77 | 39.10 | 43.06 | 42.80 | 48.00 | 53.07 | 57.17 | 57.71 | 53.57 | 45.87 | 40.87 | 33.81 | 45.92 |
1983 | 38.29 | 41.18 | 43.68 | 42.43 | 50.39 | 54.63 | 57.77 | 59.35 | 51.13 | 44.84 | 44.70 | 32.48 | 46.77 |
1982 | 35.16 | 36.75 | 39.03 | 39.33 | 46.32 | 55.17 | 56.87 | 57.55 | 53.13 | 45.94 | 37.37 | 36.19 | 44.95 |
1981 | 36.52 | 36.07 | 39.23 | 43.53 | 48.77 | 53.00 | 56.71 | 58.77 | 53.20 | 44.23 | 41.17 | 37.42 | 45.78 |
30 yr Avg | 35.80 | 36.31 | 39.67 | 43.22 | 48.74 | 53.70 | 57.88 | 58.04 | 53.23 | 46.08 | 40.51 | 35.22 | 45.75 |
Monthly Precipitation Totals in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Monthly Precipitation Totals | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
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 |
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 |
2008 | 4.71 | 2.19 | 3.71 | 2.09 | 2.03 | 1.01 | 0.29 | 1.23 | 0.48 | 1.77 | 4.15 | 3.52 | 27.18 |
2007 | 2.74 | 3.47 | 3.20 | 2.01 | 1.45 | 1.08 | 0.55 | 0.46 | 2.04 | 3.26 | 4.25 | 7.57 | 32.08 |
2006 | 10.92 | 2.15 | 2.96 | 2.46 | 3.00 | 0.93 | 0.47 | 0.10 | 0.86 | 1.40 | 11.92 | 5.86 | 43.03 |
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 |
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 |
2003 | 7.64 | 2.37 | 5.75 | 4.37 | 1.49 | 0.31 | 0.19 | 0.85 | 3.01 | 4.09 | 7.45 | 37.52 | |
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 |
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 |
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 |
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 |
1998 | 6.77 | 5.27 | 4.06 | 1.04 | 5.55 | 1.73 | 0.59 | 1.09 | 2.16 | 11.02 | 6.74 | 46.02 | |
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 |
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 |
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 |
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 |
1993 | 3.06 | 0.72 | 4.39 | 5.26 | 4.36 | 1.69 | 2.41 | 0.37 | 1.59 | 1.50 | 5.01 | 30.36 | |
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 |
1991 | 2.56 | 3.65 | 4.64 | 4.05 | 3.34 | 2.31 | 0.07 | 0.70 | 0.02 | 1.51 | 6.36 | 4.34 | 33.55 |
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 |
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 |
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 |
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 |
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 |
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 |
1984 | 2.01 | 3.93 | 3.19 | 3.20 | 3.41 | 4.06 | 0.09 | 1.46 | 3.85 | 9.74 | 2.56 | 37.50 | |
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 |
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 |
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 |
Total | 146.38 | 109.69 | 110.28 | 81.95 | 74.07 | 51.07 | 19.34 | 19.92 | 44.06 | 89.93 | 168.69 | 164.59 | 1080 |
30 yr | 4.88 | 3.66 | 3.68 | 2.73 | 2.47 | 1.70 | 0.64 | 0.66 | 1.47 | 3.00 | 5.62 | 5.49 | 36.00 |
Percent | 13.6% | 10.2% | 10.2% | 7.6% | 6.9% | 4.7% | 1.8% | 1.8% | 4.1% | 8.3% | 15.6% | 15.2% | 100.0% |
Monthly Days With Measurable Rain in Portland from 1981 to 2010 | |||||||||||||
Portland Airport Data --- Year vs Monthly Days with Rain | |||||||||||||
Year | Jan | Feb | Mar | Apr | May | June | July | Aug | Sept | Oct | Nov | Dec | Total |
2010 | 23 | 17 | 17 | 25 | 21 | 13 | 3 | 4 | 10 | 12 | 23 | 22 | 190 |
2009 | 14 | 15 | 25 | 14 | 14 | 8 | 2 | 5 | 9 | 18 | 20 | 11 | 155 |
2008 | 19 | 15 | 24 | 21 | 15 | 10 | 4 | 9 | 3 | 12 | 17 | 21 | 170 |
2007 | 15 | 23 | 17 | 14 | 11 | 10 | 7 | 3 | 8 | 17 | 14 | 23 | 162 |
2006 | 27 | 11 | 22 | 18 | 14 | 9 | 2 | 1 | 7 | 11 | 26 | 16 | 164 |
2005 | 16 | 7 | 9 | 22 | 20 | 14 | 4 | 1 | 2 | 21 | 17 | 17 | 150 |
2004 | 23 | 20 | 11 | 9 | 19 | 6 | 1 | 9 | 10 | 19 | 13 | 18 | 158 |
2003 | 16 | 13 | 27 | 24 | 9 | 4 | 4 | 6 | 12 | 19 | 26 | 160 | |
2002 | 23 | 14 | 16 | 14 | 15 | 7 | 2 | 1 | 4 | 5 | 13 | 23 | 137 |
2001 | 16 | 12 | 17 | 18 | 5 | 14 | 5 | 3 | 3 | 15 | 19 | 25 | 152 |
2000 | 24 | 18 | 15 | 14 | 22 | 6 | 2 | 2 | 8 | 15 | 14 | 17 | 157 |
1999 | 22 | 23 | 21 | 16 | 16 | 13 | 6 | 8 | 1 | 9 | 22 | 18 | 175 |
1998 | 26 | 25 | 22 | 12 | 18 | 9 | 6 | 5 | 13 | 26 | 21 | 183 | |
1997 | 20 | 14 | 23 | 18 | 13 | 11 | 4 | 4 | 11 | 18 | 17 | 14 | 167 |
1996 | 25 | 15 | 18 | 19 | 17 | 5 | 5 | 3 | 11 | 15 | 23 | 26 | 182 |
1995 | 17 | 8 | 19 | 19 | 8 | 10 | 3 | 8 | 10 | 13 | 23 | 20 | 158 |
1994 | 16 | 16 | 13 | 17 | 8 | 11 | 2 | 3 | 5 | 10 | 23 | 19 | 143 |
1993 | 14 | 5 | 16 | 22 | 18 | 12 | 10 | 5 | 7 | 9 | 16 | 134 | |
1992 | 18 | 14 | 8 | 17 | 5 | 3 | 3 | 2 | 8 | 11 | 17 | 20 | 126 |
1991 | 11 | 11 | 17 | 17 | 14 | 8 | 3 | 5 | 1 | 7 | 21 | 18 | 133 |
1990 | 22 | 15 | 14 | 12 | 20 | 13 | 4 | 7 | 2 | 20 | 19 | 17 | 165 |
1989 | 18 | 11 | 22 | 12 | 13 | 5 | 3 | 4 | 6 | 10 | 15 | 10 | 129 |
1988 | 17 | 12 | 17 | 18 | 16 | 10 | 4 | 1 | 6 | 7 | 25 | 13 | 146 |
1987 | 16 | 12 | 20 | 13 | 11 | 2 | 5 | 2 | 3 | 1 | 13 | 21 | 119 |
1986 | 20 | 17 | 15 | 15 | 12 | 4 | 7 | 2 | 15 | 7 | 18 | 16 | 148 |
1985 | 2 | 13 | 14 | 10 | 8 | 6 | 2 | 3 | 11 | 16 | 20 | 7 | 112 |
1984 | 8 | 19 | 20 | 20 | 17 | 14 | 1 | 9 | 18 | 24 | 18 | 168 | |
1983 | 19 | 22 | 22 | 11 | 10 | 18 | 12 | 7 | 6 | 12 | 26 | 20 | 185 |
1982 | 21 | 17 | 15 | 15 | 5 | 9 | 7 | 7 | 13 | 14 | 15 | 19 | 157 |
1981 | 12 | 15 | 13 | 16 | 16 | 15 | 4 | 3 | 9 | 13 | 18 | 27 | 161 |
Total | 540 | 449 | 529 | 492 | 410 | 279 | 122 | 117 | 202 | 378 | 569 | 559 | 4646 |
30 yr | 18.0 | 15.0 | 17.6 | 16.4 | 13.7 | 9.3 | 4.1 | 3.9 | 6.7 | 12.6 | 19.0 | 18.6 | 154.9 |
Odds | 58.1% | 53.5% | 56.9% | 54.7% | 44.1% | 30.0% | 13.1% | 12.6% | 22.4% | 40.6% | 63.2% | 60.1% | 42.4% |
60 Degree Days | 70 Degree Days | 80 Degree Days | 90 Degree Days | 32 Degree Days |
Average Monthly Highs | Average Monthly Lows | Monthly Rainfall | Monthly Rain Days |