| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.0 | 60.9 | 69.1 | 77.6 | 85.6 | 92.3 | 94.1 | 92.1 | 85.8 | 77.3 | 65.0 | 56.6 | 76.0 |
| Highest Mean Max. Temperature (F) | 61.8 | 70.7 | 78.4 | 85.6 | 94.5 | 100.1 | 100.5 | 98.1 | 95.8 | 84.6 | 72.8 | 63.0 | 100.5 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1978 | 1996 | 1998 | 1980 | 1983 | 1977 | 1979 | 1973 | 1981 | 1980 |
| Lowest Mean Max. Temperature (F) | 46.5 | 51.1 | 63.4 | 69.7 | 79.1 | 85.8 | 87.9 | 84.3 | 76.4 | 70.4 | 55.1 | 46.6 | 46.5 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1992 | 1986 | 1975 | 1971 | 1974 | 1984 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 40.9 | 45.7 | 52.7 | 61.1 | 70.3 | 78.0 | 80.6 | 78.8 | 72.4 | 62.4 | 50.2 | 42.3 | 61.3 |
| Highest Mean Temperature (F) | 46.1 | 52.4 | 59.5 | 67.0 | 77.4 | 84.0 | 85.6 | 83.2 | 79.2 | 65.9 | 55.5 | 46.8 | 85.6 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1978 | 1996 | 1990 | 1980 | 1977 | 1977 | 1979 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 34.6 | 39.1 | 48.1 | 55.8 | 66.2 | 74.1 | 76.6 | 74.3 | 65.8 | 55.9 | 43.6 | 33.4 | 33.4 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1997 | 1976 | 1986 | 1990 | 1971 | 1974 | 1976 | 2000 | 1983 | 1983 |
| Mean Min. Temperature (F) | 26.7 | 30.4 | 36.3 | 44.6 | 54.9 | 63.6 | 67.0 | 65.5 | 58.9 | 47.4 | 35.3 | 28.0 | 46.6 |
| Highest Mean Min. Temperature (F) | 30.4 | 35.2 | 40.7 | 49.4 | 60.2 | 68.1 | 70.7 | 69.5 | 62.8 | 51.8 | 40.6 | 33.7 | 70.7 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1981 | 1996 | 1980 | 1980 | 1977 | 1998 | 1998 | 1978 | 1994 | 1980 |
| Lowest Mean Min. Temperature (F) | 21.2 | 25.7 | 31.8 | 40.0 | 51.3 | 61.0 | 64.5 | 62.6 | 54.4 | 40.7 | 29.7 | 20.3 | 20.3 |
| Year Lowest Occurred | 1977 | 1974 | 1996 | 1987 | 1976 | 1989 | 1987 | 1992 | 1989 | 1976 | 1976 | 1983 | 1983 |
| Mean Precipitation (in.) | 0.64 | 0.72 | 0.61 | 0.91 | 2.39 | 2.45 | 2.44 | 2.31 | 2.73 | 1.39 | 0.90 | 0.71 | 18.20 |
| Highest Precipitation (in.) | 2.32 | 2.46 | 2.69 | 3.61 | 7.57 | 10.16 | 9.77 | 7.50 | 9.21 | 5.39 | 3.45 | 3.64 | 10.16 |
| Year Highest Occurred | 1973 | 1992 | 2000 | 1976 | 1999 | 1986 | 1988 | 1971 | 1995 | 1974 | 1978 | 1986 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 0.04 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 1999 | 1984 | 1998 | 1991 | 1990 | 1980 | 1994 | 2000 | 1989 | 1999 | 1996 | 1998 |
| Heating Degree Days (F) | 749. | 541. | 382. | 162. | 34. | 1. | 0. | 0. | 19. | 127. | 450. | 704. | 3169. |
| Cooling Degree Days (F) | 0. | 0. | 2. | 45. | 196. | 391. | 482. | 427. | 239. | 45. | 3. | 0. | 1830. |