| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.3 | 36.5 | 47.0 | 56.7 | 66.9 | 79.2 | 85.3 | 83.4 | 73.8 | 61.2 | 43.6 | 33.5 | 58.2 |
| Highest Mean Max. Temperature (F) | 39.8 | 43.5 | 55.2 | 64.1 | 72.5 | 84.7 | 88.6 | 87.4 | 80.9 | 69.4 | 55.3 | 45.4 | 88.6 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1994 | 1994 | 1989 | 2000 | 1979 | 1988 | 1999 | 1995 | 1989 |
| Lowest Mean Max. Temperature (F) | 19.7 | 26.1 | 40.3 | 49.8 | 59.0 | 71.7 | 80.0 | 80.6 | 68.9 | 53.8 | 35.4 | 24.5 | 19.7 |
| Year Lowest Occurred | 1973 | 1989 | 1973 | 1975 | 1995 | 1998 | 1992 | 1993 | 1986 | 1984 | 2000 | 1978 | 1973 |
| Mean Temperature (F) | 20.0 | 24.9 | 35.2 | 43.5 | 53.3 | 63.6 | 70.2 | 68.0 | 58.7 | 46.7 | 32.0 | 22.3 | 44.9 |
| Highest Mean Temperature (F) | 28.5 | 32.3 | 41.9 | 49.8 | 57.2 | 68.2 | 73.7 | 72.0 | 63.7 | 53.7 | 39.9 | 33.4 | 73.7 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1992 | 1996 | 1994 | 1996 | 2000 | 1990 | 1988 | 1999 | 1995 | 1996 |
| Lowest Mean Temperature (F) | 8.7 | 14.7 | 29.1 | 37.7 | 49.0 | 58.1 | 65.8 | 64.9 | 53.5 | 41.3 | 23.9 | 14.0 | 8.7 |
| Year Lowest Occurred | 1973 | 1989 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1971 | 1984 | 2000 | 1978 | 1973 |
| Mean Min. Temperature (F) | 8.7 | 13.3 | 23.4 | 30.2 | 39.6 | 48.0 | 55.1 | 52.6 | 43.6 | 32.2 | 20.3 | 11.0 | 31.5 |
| Highest Mean Min. Temperature (F) | 18.2 | 22.0 | 29.9 | 35.5 | 44.2 | 51.6 | 60.9 | 58.6 | 49.1 | 38.0 | 26.0 | 21.4 | 60.9 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1992 | 1996 | 1994 | 1996 | 1996 | 1998 | 1988 | 1998 | 1995 | 1996 |
| Lowest Mean Min. Temperature (F) | -2.4 | 3.3 | 16.1 | 25.7 | 35.8 | 44.4 | 50.3 | 48.1 | 37.5 | 28.3 | 12.3 | 1.5 | -2.4 |
| Year Lowest Occurred | 1973 | 1989 | 1976 | 1975 | 1975 | 1998 | 1993 | 1974 | 1971 | 1982 | 2000 | 1990 | 1973 |
| Mean Precipitation (in.) | 0.79 | 0.87 | 1.02 | 1.46 | 1.43 | 0.77 | 1.19 | 0.74 | 1.53 | 1.71 | 1.13 | 0.68 | 13.32 |
| Highest Precipitation (in.) | 2.03 | 1.89 | 2.88 | 4.16 | 3.09 | 3.68 | 3.11 | 3.30 | 6.34 | 3.84 | 2.43 | 1.98 | 6.34 |
| Year Highest Occurred | 1980 | 1980 | 1993 | 1999 | 1987 | 1998 | 1992 | 1997 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.12 | 0.00 | 0.10 | 0.31 | 0.29 | 0.07 | 0.03 | 0.09 | 0.06 | 0.00 | 0.07 | 0.05 | 0.00 |
| Year Lowest Occurred | 1986 | 1991 | 1997 | 1987 | 1994 | 1980 | 1994 | 1990 | 1974 | 1988 | 1999 | 1989 | 1991 |
| Heating Degree Days (F) | 1395. | 1123. | 923. | 648. | 367. | 105. | 11. | 27. | 207. | 567. | 991. | 1327. | 7691. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 64. | 172. | 120. | 19. | 0. | 0. | 0. | 377. |