| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.5 | 42.0 | 48.1 | 55.9 | 65.3 | 76.8 | 84.1 | 82.7 | 74.0 | 62.1 | 46.8 | 40.1 | 59.7 |
| Highest Mean Max. Temperature (F) | 46.3 | 49.5 | 56.3 | 65.7 | 72.1 | 84.0 | 90.5 | 89.4 | 81.6 | 66.4 | 61.3 | 50.5 | 90.5 |
| Year Highest Occurred | 1981 | 1991 | 1972 | 1981 | 1994 | 1980 | 2000 | 2000 | 1998 | 1978 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 27.1 | 29.4 | 41.3 | 44.8 | 54.5 | 66.6 | 77.2 | 78.0 | 67.8 | 58.0 | 36.3 | 26.3 | 26.3 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1983 | 1995 | 1982 | 1971 | 1997 | 1985 | 1993 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 25.4 | 28.6 | 34.7 | 41.9 | 51.2 | 61.6 | 68.0 | 66.7 | 57.7 | 46.6 | 33.2 | 26.9 | 45.2 |
| Highest Mean Temperature (F) | 33.0 | 36.0 | 40.8 | 49.0 | 56.2 | 66.7 | 72.7 | 71.9 | 63.3 | 50.7 | 44.0 | 36.4 | 72.7 |
| Year Highest Occurred | 1986 | 1992 | 1986 | 1981 | 2000 | 1977 | 2000 | 2000 | 1998 | 1973 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 13.6 | 17.4 | 29.3 | 34.4 | 44.4 | 55.1 | 63.8 | 63.7 | 53.2 | 43.2 | 24.6 | 14.5 | 13.6 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1983 | 1995 | 1982 | 1971 | 1997 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 12.2 | 15.1 | 21.2 | 27.9 | 37.1 | 46.3 | 51.9 | 50.7 | 41.4 | 31.0 | 19.5 | 13.6 | 30.7 |
| Highest Mean Min. Temperature (F) | 19.7 | 22.8 | 26.2 | 32.6 | 41.1 | 51.1 | 55.1 | 56.2 | 46.8 | 35.3 | 26.6 | 22.3 | 56.2 |
| Year Highest Occurred | 1986 | 1992 | 1986 | 1992 | 2000 | 1977 | 1980 | 1983 | 1990 | 1973 | 1999 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 0.1 | 5.3 | 15.5 | 21.9 | 33.0 | 41.5 | 48.9 | 47.2 | 37.9 | 27.6 | 12.8 | 2.6 | 0.1 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1997 | 1999 | 1998 | 1993 | 1999 | 1971 | 1987 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.41 | 0.44 | 1.11 | 1.60 | 2.72 | 2.46 | 2.20 | 1.96 | 1.58 | 0.87 | 0.66 | 0.45 | 16.46 |
| Highest Precipitation (in.) | 2.15 | 2.18 | 4.19 | 3.88 | 5.75 | 5.82 | 5.83 | 5.81 | 4.48 | 2.43 | 1.78 | 1.43 | 5.83 |
| Year Highest Occurred | 1980 | 1987 | 1990 | 1984 | 1995 | 1995 | 1977 | 1997 | 1973 | 1986 | 1983 | 1973 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.34 | 0.28 | 0.05 | 0.47 | 0.60 | 0.07 | 0.00 | 0.04 | 0.01 | 0.00 |
| Year Lowest Occurred | 1983 | 1983 | 1982 | 1992 | 1974 | 1980 | 1971 | 1971 | 1992 | 1988 | 1971 | 1991 | 1983 |
| Heating Degree Days (F) | 1228. | 1021. | 940. | 693. | 430. | 157. | 32. | 47. | 237. | 572. | 956. | 1182. | 7495. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 52. | 125. | 99. | 18. | 0. | 0. | 0. | 296. |