| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.8 | 58.3 | 59.4 | 61.9 | 64.2 | 67.0 | 69.8 | 71.1 | 71.8 | 68.2 | 60.6 | 56.3 | 63.8 |
| Highest Mean Max. Temperature (F) | 61.9 | 63.7 | 64.2 | 67.9 | 72.1 | 71.0 | 72.7 | 74.8 | 75.9 | 72.9 | 65.4 | 60.7 | 75.9 |
| Year Highest Occurred | 1986 | 1991 | 1978 | 1992 | 1997 | 2000 | 1979 | 1997 | 1997 | 1991 | 1995 | 1980 | 1997 |
| Lowest Mean Max. Temperature (F) | 52.3 | 53.4 | 55.3 | 55.6 | 60.0 | 63.5 | 67.8 | 67.1 | 68.4 | 62.2 | 54.2 | 49.9 | 49.9 |
| Year Lowest Occurred | 1982 | 1990 | 1973 | 1975 | 1971 | 1991 | 1982 | 1973 | 1972 | 1971 | 1994 | 1971 | 1971 |
| Mean Temperature (F) | 48.4 | 49.8 | 50.6 | 52.7 | 55.4 | 58.4 | 60.9 | 61.8 | 60.9 | 57.3 | 51.6 | 47.7 | 54.6 |
| Highest Mean Temperature (F) | 53.5 | 54.7 | 55.5 | 58.0 | 61.0 | 61.3 | 64.2 | 64.3 | 64.8 | 61.0 | 57.5 | 52.5 | 64.8 |
| Year Highest Occurred | 1986 | 1991 | 1992 | 1992 | 1997 | 2000 | 1992 | 1990 | 1997 | 1987 | 1999 | 1995 | 1997 |
| Lowest Mean Temperature (F) | 43.8 | 45.1 | 46.7 | 47.5 | 52.0 | 55.4 | 58.4 | 57.9 | 57.9 | 51.5 | 45.7 | 42.2 | 42.2 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1975 | 1977 | 1976 | 1971 | 1973 | 1972 | 1971 | 1985 | 1971 | 1971 |
| Mean Min. Temperature (F) | 40.0 | 41.2 | 41.8 | 43.5 | 46.6 | 49.8 | 52.0 | 52.4 | 49.9 | 46.3 | 42.5 | 39.1 | 45.4 |
| Highest Mean Min. Temperature (F) | 46.1 | 46.6 | 47.4 | 48.1 | 50.8 | 52.7 | 56.1 | 56.1 | 54.8 | 50.1 | 49.8 | 45.9 | 56.1 |
| Year Highest Occurred | 1995 | 2000 | 1992 | 1992 | 1993 | 1992 | 1992 | 1999 | 1990 | 1987 | 1999 | 1995 | 1999 |
| Lowest Mean Min. Temperature (F) | 35.0 | 36.0 | 37.1 | 39.3 | 42.7 | 45.4 | 48.7 | 48.6 | 47.2 | 40.8 | 36.5 | 33.1 | 33.1 |
| Year Lowest Occurred | 1972 | 1989 | 1976 | 1975 | 1977 | 1976 | 1977 | 1973 | 1988 | 1971 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 8.45 | 7.70 | 7.40 | 3.38 | 1.73 | 0.55 | 0.11 | 0.34 | 0.82 | 2.81 | 6.87 | 8.31 | 48.47 |
| Highest Precipitation (in.) | 26.41 | 19.83 | 16.07 | 8.74 | 5.06 | 3.57 | 0.97 | 3.15 | 3.85 | 8.68 | 21.53 | 22.58 | 26.41 |
| Year Highest Occurred | 1995 | 1998 | 1995 | 1982 | 1993 | 1988 | 1991 | 1983 | 1986 | 1979 | 1973 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.55 | 0.16 | 1.36 | 0.46 | 0.05 | 0.05 | 0.00 | 0.00 | 0.00 | 0.06 | 1.10 | 0.11 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1982 | 1979 | 1999 | 1996 | 1999 | 1978 | 1995 | 1989 | 1999 |
| Heating Degree Days (F) | 514. | 433. | 431. | 368. | 299. | 200. | 134. | 114. | 139. | 246. | 403. | 536. | 3817. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 3. | 7. | 14. | 16. | 5. | 0. | 0. | 47. |