| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.2 | 48.3 | 58.3 | 66.7 | 75.1 | 84.6 | 93.0 | 92.0 | 81.5 | 68.6 | 51.1 | 40.0 | 66.6 |
| Highest Mean Max. Temperature (F) | 48.4 | 57.4 | 66.0 | 76.9 | 81.6 | 92.8 | 98.3 | 98.3 | 89.4 | 78.2 | 59.8 | 46.6 | 98.3 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1987 | 1992 | 1974 | 1985 | 1981 | 1990 | 1988 | 1999 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 29.5 | 36.0 | 51.8 | 58.0 | 68.9 | 76.4 | 81.2 | 85.8 | 72.5 | 63.0 | 39.5 | 25.0 | 25.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1998 | 1993 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 31.4 | 37.5 | 45.1 | 51.9 | 59.9 | 68.1 | 75.1 | 73.7 | 63.8 | 52.8 | 40.2 | 31.1 | 52.6 |
| Highest Mean Temperature (F) | 38.9 | 44.0 | 50.2 | 58.5 | 65.5 | 73.1 | 80.0 | 78.0 | 70.4 | 59.7 | 46.4 | 38.0 | 80.0 |
| Year Highest Occurred | 1998 | 1995 | 1978 | 1987 | 1992 | 1977 | 1985 | 1971 | 1990 | 1988 | 1999 | 1977 | 1985 |
| Lowest Mean Temperature (F) | 20.4 | 26.9 | 39.5 | 45.5 | 55.9 | 62.5 | 66.3 | 69.1 | 57.7 | 49.2 | 29.8 | 16.5 | 16.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1993 | 1993 | 1993 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 22.5 | 26.7 | 31.9 | 37.1 | 44.6 | 51.6 | 57.1 | 55.3 | 46.0 | 37.0 | 29.3 | 22.2 | 38.4 |
| Highest Mean Min. Temperature (F) | 31.1 | 34.5 | 36.3 | 41.7 | 49.6 | 56.8 | 61.6 | 60.5 | 52.6 | 41.2 | 35.1 | 30.1 | 61.6 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1992 | 1993 | 1988 | 1985 | 1984 | 1998 | 1979 | 1983 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | 11.2 | 17.8 | 26.7 | 32.4 | 40.9 | 48.1 | 51.3 | 51.6 | 41.0 | 33.5 | 19.9 | 7.9 | 7.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1982 | 1982 | 1976 | 1993 | 1995 | 1971 | 1985 | 1993 | 1985 | 1985 |
| Mean Precipitation (in.) | 0.83 | 0.59 | 0.84 | 0.65 | 0.80 | 0.68 | 0.18 | 0.19 | 0.55 | 0.56 | 0.91 | 0.74 | 7.52 |
| Highest Precipitation (in.) | 2.30 | 1.96 | 2.36 | 1.72 | 3.51 | 2.94 | 0.71 | 1.45 | 2.38 | 2.26 | 2.35 | 2.29 | 3.51 |
| Year Highest Occurred | 1997 | 1978 | 1983 | 1978 | 1995 | 1971 | 1977 | 1983 | 1980 | 1975 | 1984 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.16 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.00 | 0.00 |
| Year Lowest Occurred | 1993 | 1997 | 1977 | 1977 | 1992 | 2000 | 2000 | 2000 | 1999 | 1999 | 1993 | 1990 | 1993 |
| Heating Degree Days (F) | 1044. | 770. | 617. | 397. | 187. | 53. | 7. | 8. | 116. | 381. | 745. | 1052. | 5377. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 27. | 145. | 319. | 277. | 78. | 1. | 0. | 0. | 852. |