| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.5 | 44.9 | 53.2 | 61.8 | 71.4 | 82.6 | 90.7 | 89.3 | 78.9 | 65.6 | 49.7 | 40.3 | 64.0 |
| Highest Mean Max. Temperature (F) | 46.3 | 54.6 | 61.3 | 70.9 | 77.8 | 89.2 | 96.4 | 94.7 | 84.7 | 75.2 | 59.2 | 48.0 | 96.4 |
| Year Highest Occurred | 1998 | 1995 | 1972 | 1987 | 1992 | 1988 | 2000 | 2000 | 1990 | 1988 | 1999 | 1981 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.9 | 34.1 | 46.2 | 52.1 | 65.2 | 75.0 | 82.8 | 84.8 | 71.4 | 57.5 | 42.0 | 30.7 | 28.9 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1995 | 1998 | 1993 | 1993 | 1986 | 1984 | 2000 | 1985 | 1984 |
| Mean Temperature (F) | 29.8 | 34.5 | 42.1 | 49.6 | 58.5 | 68.8 | 76.6 | 74.9 | 64.9 | 52.6 | 39.3 | 30.6 | 51.9 |
| Highest Mean Temperature (F) | 37.5 | 40.4 | 48.1 | 57.6 | 62.8 | 75.0 | 81.7 | 80.5 | 70.1 | 60.2 | 47.6 | 38.1 | 81.7 |
| Year Highest Occurred | 1998 | 2000 | 1972 | 1987 | 2000 | 1988 | 2000 | 2000 | 1990 | 1988 | 1995 | 1977 | 2000 |
| Lowest Mean Temperature (F) | 21.0 | 24.2 | 36.2 | 42.0 | 51.6 | 62.1 | 68.5 | 70.0 | 58.1 | 47.2 | 30.6 | 20.8 | 20.8 |
| Year Lowest Occurred | 1984 | 1984 | 1976 | 1975 | 1995 | 1993 | 1993 | 1993 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 20.1 | 24.1 | 30.9 | 37.4 | 45.6 | 55.0 | 62.4 | 60.5 | 50.8 | 39.6 | 28.8 | 20.9 | 39.7 |
| Highest Mean Min. Temperature (F) | 28.8 | 31.1 | 37.2 | 44.2 | 50.2 | 60.8 | 67.3 | 66.2 | 55.6 | 45.2 | 35.9 | 28.7 | 67.3 |
| Year Highest Occurred | 2000 | 2000 | 1978 | 1987 | 2000 | 1988 | 1988 | 2000 | 1979 | 1988 | 1995 | 1977 | 1988 |
| Lowest Mean Min. Temperature (F) | 10.8 | 14.3 | 23.8 | 31.1 | 38.0 | 48.4 | 54.2 | 53.2 | 44.7 | 34.5 | 18.8 | 9.3 | 9.3 |
| Year Lowest Occurred | 1973 | 1984 | 1976 | 1995 | 1995 | 1993 | 1993 | 1995 | 1986 | 1994 | 1994 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.42 | 1.61 | 2.48 | 2.37 | 2.25 | 0.96 | 0.88 | 0.92 | 1.52 | 1.95 | 1.94 | 1.46 | 19.76 |
| Highest Precipitation (in.) | 3.31 | 4.96 | 4.58 | 5.99 | 5.31 | 2.98 | 3.47 | 4.06 | 8.06 | 5.29 | 4.91 | 3.62 | 8.06 |
| Year Highest Occurred | 1993 | 1998 | 1995 | 1986 | 1995 | 1998 | 1984 | 1983 | 1982 | 1981 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.52 | 0.10 | 0.64 | 0.55 | 0.08 | 0.02 | 0.00 | 0.00 | 0.02 | 0.00 | 0.56 | 0.15 | 0.00 |
| Year Lowest Occurred | 1986 | 1988 | 1972 | 1992 | 1974 | 1996 | 1978 | 1985 | 1979 | 1978 | 1971 | 1986 | 1978 |
| Heating Degree Days (F) | 1091. | 853. | 710. | 470. | 235. | 63. | 5. | 3. | 97. | 389. | 773. | 1066. | 5755. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 34. | 178. | 363. | 309. | 92. | 4. | 0. | 0. | 988. |