| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.2 | 39.7 | 47.1 | 54.4 | 62.6 | 69.9 | 78.5 | 78.9 | 71.0 | 58.2 | 42.6 | 35.4 | 56.1 |
| Highest Mean Max. Temperature (F) | 45.0 | 48.0 | 54.2 | 60.5 | 69.2 | 77.1 | 86.6 | 85.4 | 80.4 | 68.1 | 49.3 | 42.3 | 86.6 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1977 | 1992 | 1992 | 1998 | 1986 | 1990 | 1988 | 1995 | 1980 | 1998 |
| Lowest Mean Max. Temperature (F) | 22.7 | 31.2 | 39.7 | 48.6 | 56.3 | 63.3 | 68.4 | 72.2 | 62.1 | 52.0 | 32.0 | 25.8 | 22.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1981 | 1993 | 1975 | 1978 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 29.3 | 32.9 | 38.5 | 44.0 | 50.9 | 57.4 | 64.0 | 64.1 | 56.9 | 46.7 | 35.9 | 29.6 | 45.9 |
| Highest Mean Temperature (F) | 37.7 | 40.2 | 43.5 | 48.4 | 56.3 | 63.7 | 70.7 | 68.0 | 63.7 | 54.2 | 41.9 | 35.6 | 70.7 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1990 | 1993 | 1992 | 1998 | 1986 | 1990 | 1988 | 1995 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 15.3 | 23.2 | 32.5 | 38.9 | 45.9 | 53.3 | 57.1 | 59.4 | 50.9 | 42.9 | 25.0 | 19.7 | 15.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1993 | 1975 | 1985 | 1984 | 1985 | 1985 | 1979 |
| Mean Min. Temperature (F) | 23.4 | 26.0 | 29.9 | 33.6 | 39.2 | 44.8 | 49.4 | 49.3 | 42.8 | 35.1 | 29.2 | 23.8 | 35.5 |
| Highest Mean Min. Temperature (F) | 30.4 | 32.9 | 34.3 | 37.6 | 43.9 | 50.2 | 54.8 | 53.5 | 47.0 | 40.3 | 34.4 | 29.7 | 54.8 |
| Year Highest Occurred | 1994 | 1992 | 1986 | 1992 | 1993 | 1992 | 1998 | 1977 | 1990 | 1988 | 1998 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 7.8 | 15.2 | 24.5 | 29.2 | 35.5 | 41.4 | 45.0 | 45.7 | 38.7 | 32.2 | 17.9 | 13.3 | 7.8 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1976 | 1977 | 1973 | 1985 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 5.74 | 4.68 | 3.26 | 1.97 | 1.26 | 0.91 | 0.34 | 0.48 | 1.11 | 2.24 | 5.28 | 6.17 | 33.44 |
| Highest Precipitation (in.) | 11.63 | 9.92 | 7.08 | 4.06 | 3.14 | 2.98 | 1.24 | 2.18 | 3.19 | 7.37 | 10.92 | 16.90 | 16.90 |
| Year Highest Occurred | 1972 | 1999 | 1983 | 1996 | 1998 | 1981 | 1983 | 1977 | 1972 | 1994 | 1984 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.28 | 0.88 | 0.64 | 0.12 | 0.15 | 0.07 | 0.00 | 0.00 | 0.00 | 0.05 | 0.78 | 1.42 | 0.00 |
| Year Lowest Occurred | 1985 | 1973 | 1992 | 1977 | 1992 | 1979 | 1984 | 2000 | 1993 | 1988 | 1976 | 1976 | 1984 |
| Heating Degree Days (F) | 1108. | 900. | 821. | 630. | 438. | 245. | 120. | 102. | 272. | 569. | 873. | 1098. | 7176. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 86. | 72. | 29. | 0. | 0. | 0. | 201. |