| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.8 | 39.2 | 49.5 | 59.6 | 69.5 | 80.8 | 89.5 | 87.9 | 77.8 | 64.4 | 46.6 | 35.7 | 61.1 |
| Highest Mean Max. Temperature (F) | 40.8 | 47.7 | 59.4 | 67.5 | 77.6 | 88.1 | 94.0 | 94.6 | 85.9 | 71.8 | 58.1 | 42.7 | 94.6 |
| Year Highest Occurred | 1998 | 1995 | 1986 | 1992 | 1992 | 1974 | 1985 | 1981 | 1990 | 1988 | 1999 | 1995 | 1981 |
| Lowest Mean Max. Temperature (F) | 24.7 | 28.6 | 41.0 | 47.8 | 62.0 | 73.5 | 81.3 | 83.7 | 70.0 | 55.6 | 39.8 | 25.6 | 24.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1975 | 1998 | 1993 | 1976 | 1971 | 1984 | 2000 | 1985 | 1979 |
| Mean Temperature (F) | 22.0 | 27.5 | 36.9 | 44.8 | 53.3 | 62.7 | 70.4 | 69.3 | 59.7 | 47.2 | 33.6 | 23.9 | 45.9 |
| Highest Mean Temperature (F) | 30.3 | 35.3 | 43.5 | 49.8 | 57.9 | 68.6 | 74.4 | 72.9 | 67.8 | 52.9 | 40.9 | 31.2 | 74.4 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1977 | 1985 | 2000 | 1990 | 1988 | 1999 | 1995 | 1985 |
| Lowest Mean Temperature (F) | 13.9 | 14.9 | 29.2 | 37.7 | 47.9 | 57.5 | 62.6 | 65.7 | 53.4 | 41.9 | 27.1 | 13.9 | 13.9 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1975 | 1991 | 1998 | 1993 | 1980 | 1971 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 11.1 | 15.7 | 24.3 | 29.9 | 37.0 | 44.5 | 51.3 | 50.7 | 41.5 | 30.0 | 20.5 | 12.1 | 30.7 |
| Highest Mean Min. Temperature (F) | 21.5 | 24.4 | 30.1 | 33.1 | 40.7 | 50.2 | 57.9 | 55.8 | 49.6 | 35.3 | 26.9 | 20.9 | 57.9 |
| Year Highest Occurred | 1978 | 2000 | 1978 | 1989 | 1987 | 1977 | 1975 | 1983 | 1990 | 1972 | 1972 | 1981 | 1975 |
| Lowest Mean Min. Temperature (F) | 2.5 | 0.5 | 16.5 | 25.7 | 32.9 | 41.3 | 43.8 | 46.1 | 36.8 | 24.6 | 12.3 | -1.2 | -1.2 |
| Year Lowest Occurred | 1975 | 1985 | 1985 | 1982 | 1988 | 1984 | 1993 | 1978 | 1971 | 1985 | 1993 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.01 | 0.84 | 1.10 | 1.26 | 1.84 | 0.90 | 0.80 | 0.72 | 0.89 | 1.05 | 1.06 | 0.98 | 12.45 |
| Highest Precipitation (in.) | 2.83 | 2.20 | 3.07 | 3.91 | 4.44 | 2.45 | 3.41 | 2.57 | 3.62 | 2.30 | 2.60 | 3.34 | 4.44 |
| Year Highest Occurred | 1980 | 1980 | 1982 | 1971 | 1980 | 1971 | 1983 | 1979 | 1982 | 1981 | 1988 | 1983 | 1980 |
| Lowest Precipitation (in.) | 0.22 | 0.03 | 0.22 | 0.27 | 0.12 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1989 | 1976 | 1977 | 1972 | 1986 | 1988 | 1975 | 1974 | 1978 | 1976 | 1976 | 1988 |
| Heating Degree Days (F) | 1334. | 1052. | 872. | 607. | 370. | 134. | 23. | 21. | 199. | 553. | 944. | 1274. | 7383. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 63. | 190. | 153. | 38. | 0. | 0. | 0. | 450. |