| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.5 | 42.8 | 49.7 | 59.0 | 68.6 | 79.3 | 86.1 | 84.0 | 74.5 | 62.6 | 46.8 | 39.5 | 60.9 |
| Highest Mean Max. Temperature (F) | 45.3 | 52.3 | 58.2 | 66.3 | 76.5 | 84.7 | 90.4 | 90.2 | 81.8 | 68.2 | 59.5 | 48.6 | 90.4 |
| Year Highest Occurred | 1981 | 1999 | 1986 | 1981 | 1994 | 1988 | 2000 | 2000 | 1998 | 1975 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 22.0 | 29.8 | 41.4 | 48.8 | 59.8 | 71.6 | 79.3 | 78.7 | 66.5 | 56.9 | 34.2 | 21.0 | 21.0 |
| Year Lowest Occurred | 1979 | 1989 | 1987 | 1984 | 1995 | 1982 | 1992 | 1992 | 1973 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.4 | 32.3 | 38.5 | 46.9 | 56.4 | 66.3 | 72.3 | 70.4 | 60.9 | 49.3 | 36.0 | 29.0 | 48.8 |
| Highest Mean Temperature (F) | 33.5 | 40.5 | 46.0 | 53.6 | 61.8 | 71.5 | 75.9 | 75.7 | 66.9 | 52.2 | 45.1 | 37.0 | 75.9 |
| Year Highest Occurred | 1999 | 1992 | 1986 | 1981 | 1994 | 1988 | 1980 | 1983 | 1998 | 1974 | 1999 | 1993 | 1980 |
| Lowest Mean Temperature (F) | 12.7 | 20.0 | 33.0 | 41.1 | 50.8 | 61.0 | 67.5 | 66.0 | 56.2 | 45.5 | 25.0 | 13.1 | 12.7 |
| Year Lowest Occurred | 1979 | 1989 | 1987 | 1984 | 1995 | 1982 | 1992 | 1974 | 1973 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 17.3 | 21.7 | 27.2 | 34.8 | 44.2 | 53.2 | 58.5 | 56.8 | 47.3 | 35.9 | 25.1 | 18.5 | 36.7 |
| Highest Mean Min. Temperature (F) | 24.8 | 30.6 | 33.7 | 40.9 | 49.8 | 58.2 | 61.7 | 61.7 | 52.0 | 39.9 | 30.6 | 28.8 | 61.7 |
| Year Highest Occurred | 1983 | 1992 | 1986 | 1981 | 1977 | 1988 | 1980 | 1983 | 1998 | 1994 | 1999 | 1993 | 1980 |
| Lowest Mean Min. Temperature (F) | 3.3 | 10.1 | 20.6 | 28.0 | 40.4 | 44.9 | 55.6 | 52.5 | 41.9 | 31.4 | 15.9 | 5.1 | 3.3 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1983 | 2000 | 1992 | 1974 | 1974 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.48 | 0.57 | 1.39 | 2.06 | 3.39 | 2.95 | 2.38 | 1.94 | 1.51 | 1.14 | 0.82 | 0.49 | 19.12 |
| Highest Precipitation (in.) | 1.76 | 2.12 | 4.28 | 4.99 | 7.58 | 8.44 | 6.56 | 3.65 | 5.65 | 3.77 | 2.12 | 1.57 | 8.44 |
| Year Highest Occurred | 1973 | 1987 | 1983 | 1986 | 1988 | 1986 | 1982 | 1979 | 1996 | 1994 | 1972 | 1973 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.20 | 0.55 | 0.66 | 0.57 | 0.46 | 0.36 | 0.04 | 0.00 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1996 | 1997 | 1982 | 1972 | 2000 | 1988 | 1986 | 1978 | 1988 | 1988 | 1991 | 1986 |
| Heating Degree Days (F) | 1167. | 917. | 823. | 543. | 281. | 71. | 3. | 22. | 170. | 489. | 872. | 1117. | 6475. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 14. | 109. | 230. | 189. | 47. | 0. | 0. | 0. | 589. |