| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.5 | 42.4 | 49.0 | 57.4 | 67.2 | 78.0 | 84.0 | 81.4 | 74.0 | 62.3 | 47.7 | 39.8 | 60.1 |
| Highest Mean Max. Temperature (F) | 46.6 | 50.9 | 57.5 | 66.0 | 74.7 | 83.2 | 87.6 | 84.0 | 79.6 | 69.2 | 58.1 | 49.8 | 87.6 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 2000 | 1974 | 1989 | 1996 | 1979 | 1988 | 1995 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 28.5 | 36.8 | 40.8 | 48.2 | 61.0 | 70.7 | 79.9 | 78.5 | 66.6 | 52.6 | 39.8 | 32.4 | 28.5 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1975 | 1995 | 1995 | 1987 | 1997 | 1986 | 1984 | 2000 | 1971 | 1979 |
| Mean Temperature (F) | 24.7 | 28.7 | 35.5 | 42.0 | 50.4 | 59.3 | 65.6 | 63.7 | 56.2 | 45.3 | 33.5 | 25.9 | 44.2 |
| Highest Mean Temperature (F) | 31.9 | 35.8 | 41.0 | 48.7 | 55.4 | 63.3 | 68.1 | 66.5 | 59.4 | 50.2 | 38.7 | 34.5 | 68.1 |
| Year Highest Occurred | 1981 | 2000 | 1989 | 1992 | 2000 | 1981 | 1996 | 1994 | 1979 | 1988 | 1995 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 17.5 | 22.5 | 29.6 | 34.4 | 45.9 | 53.5 | 62.2 | 61.1 | 51.1 | 38.9 | 26.6 | 17.9 | 17.5 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1975 | 1995 | 1995 | 1995 | 1975 | 1986 | 1984 | 2000 | 1990 | 1979 |
| Mean Min. Temperature (F) | 10.8 | 14.9 | 21.9 | 26.5 | 33.6 | 40.6 | 47.2 | 45.9 | 38.3 | 28.3 | 19.2 | 12.0 | 28.3 |
| Highest Mean Min. Temperature (F) | 19.9 | 24.0 | 27.2 | 31.4 | 36.3 | 44.8 | 50.3 | 50.4 | 42.8 | 36.2 | 23.0 | 19.1 | 50.4 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1992 | 1992 | 1981 | 1981 | 1971 | 1990 | 1972 | 1978 | 1980 | 1971 |
| Lowest Mean Min. Temperature (F) | 2.5 | 6.3 | 14.9 | 20.6 | 29.0 | 35.7 | 42.0 | 42.3 | 33.6 | 23.8 | 13.2 | 3.4 | 2.5 |
| Year Lowest Occurred | 1989 | 1974 | 1976 | 1975 | 1999 | 1998 | 1993 | 1985 | 1993 | 1999 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.64 | 0.57 | 0.78 | 0.60 | 0.88 | 0.59 | 1.08 | 1.35 | 0.96 | 0.97 | 0.56 | 0.51 | 9.49 |
| Highest Precipitation (in.) | 1.62 | 1.69 | 1.74 | 1.39 | 2.49 | 2.30 | 2.65 | 4.27 | 3.50 | 2.45 | 2.58 | 1.83 | 4.27 |
| Year Highest Occurred | 1978 | 1998 | 1978 | 1985 | 1992 | 1972 | 1997 | 1971 | 1982 | 1972 | 1978 | 1983 | 1971 |
| Lowest Precipitation (in.) | 0.03 | 0.01 | 0.00 | 0.07 | 0.03 | 0.00 | 0.10 | 0.11 | 0.12 | 0.02 | 0.08 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1982 | 1974 | 1980 | 1979 | 1985 | 1984 | 1995 | 1999 | 1976 | 1997 |
| Heating Degree Days (F) | 1251. | 1018. | 916. | 691. | 453. | 197. | 49. | 72. | 268. | 611. | 947. | 1213. | 7686. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 69. | 29. | 2. | 0. | 0. | 0. | 126. |