| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 58.4 | 63.6 | 67.0 | 72.1 | 78.2 | 85.5 | 89.8 | 89.4 | 87.1 | 80.1 | 66.5 | 58.6 | 74.7 |
| Highest Mean Max. Temperature (F) | 65.8 | 69.8 | 72.8 | 79.2 | 84.6 | 93.7 | 95.0 | 92.6 | 95.8 | 85.9 | 72.5 | 66.2 | 95.8 |
| Year Highest Occurred | 1976 | 1977 | 1984 | 1977 | 1984 | 1981 | 1984 | 1972 | 1984 | 1978 | 1995 | 1976 | 1984 |
| Lowest Mean Max. Temperature (F) | 54.2 | 58.1 | 60.4 | 65.3 | 67.6 | 78.3 | 83.4 | 83.9 | 77.6 | 74.5 | 60.1 | 54.1 | 54.1 |
| Year Lowest Occurred | 1972 | 1998 | 1991 | 1975 | 1998 | 1998 | 1987 | 1991 | 1986 | 2000 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 47.9 | 51.8 | 54.2 | 57.6 | 62.3 | 67.9 | 70.9 | 70.6 | 68.7 | 63.2 | 53.6 | 47.6 | 59.7 |
| Highest Mean Temperature (F) | 52.5 | 56.0 | 58.5 | 61.0 | 66.9 | 75.1 | 73.8 | 72.7 | 73.3 | 66.1 | 57.9 | 52.7 | 75.1 |
| Year Highest Occurred | 1978 | 1980 | 1978 | 1990 | 1997 | 1981 | 1984 | 1998 | 1984 | 1978 | 1995 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 42.8 | 47.0 | 50.2 | 52.0 | 57.1 | 63.4 | 67.3 | 67.4 | 63.3 | 59.8 | 48.7 | 43.1 | 42.8 |
| Year Lowest Occurred | 1972 | 1989 | 1999 | 1975 | 1998 | 1980 | 1987 | 1985 | 1986 | 1971 | 1994 | 1990 | 1972 |
| Mean Min. Temperature (F) | 37.3 | 39.9 | 41.4 | 43.0 | 46.4 | 50.3 | 51.9 | 51.8 | 50.3 | 46.3 | 40.7 | 36.5 | 44.7 |
| Highest Mean Min. Temperature (F) | 44.6 | 47.4 | 46.8 | 47.5 | 50.4 | 56.5 | 54.7 | 55.7 | 54.1 | 50.6 | 48.0 | 43.5 | 56.5 |
| Year Highest Occurred | 1995 | 1980 | 1978 | 1990 | 1993 | 1981 | 1995 | 1990 | 1983 | 1979 | 1981 | 1983 | 1981 |
| Lowest Mean Min. Temperature (F) | 31.1 | 34.7 | 36.1 | 38.6 | 42.5 | 47.1 | 48.5 | 46.3 | 45.8 | 40.8 | 34.8 | 29.0 | 29.0 |
| Year Lowest Occurred | 1985 | 1989 | 1976 | 1975 | 1976 | 1971 | 1981 | 1985 | 1985 | 1985 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 6.52 | 6.10 | 4.64 | 1.55 | 0.79 | 0.18 | 0.05 | 0.12 | 0.33 | 1.68 | 4.22 | 4.46 | 30.64 |
| Highest Precipitation (in.) | 20.29 | 18.89 | 13.77 | 3.82 | 3.90 | 1.04 | 1.11 | 1.02 | 1.77 | 4.73 | 12.95 | 13.11 | 20.29 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1983 | 1998 | 1995 | 1974 | 1997 | 1989 | 1975 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.36 | 0.44 | 0.12 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.01 | 0.00 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1973 | 1992 | 1996 | 2000 | 1999 | 1995 | 1995 | 1986 | 1989 | 1992 |
| Heating Degree Days (F) | 532. | 370. | 335. | 232. | 132. | 38. | 4. | 2. | 25. | 92. | 344. | 541. | 2647. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 49. | 126. | 186. | 175. | 136. | 36. | 1. | 0. | 717. |