| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.2 | 59.9 | 68.1 | 75.2 | 82.5 | 88.9 | 91.8 | 91.2 | 86.9 | 77.2 | 67.3 | 58.3 | 75.2 |
| Highest Mean Max. Temperature (F) | 65.2 | 67.9 | 73.1 | 80.3 | 87.8 | 94.8 | 96.8 | 94.7 | 93.3 | 82.5 | 74.6 | 68.8 | 96.8 |
| Year Highest Occurred | 1974 | 1976 | 1974 | 1981 | 2000 | 1977 | 2000 | 2000 | 1980 | 1984 | 1978 | 1984 | 2000 |
| Lowest Mean Max. Temperature (F) | 44.3 | 51.3 | 61.9 | 70.6 | 76.5 | 83.4 | 87.2 | 87.5 | 82.2 | 72.4 | 59.6 | 50.0 | 44.3 |
| Year Lowest Occurred | 1977 | 1978 | 1993 | 1983 | 1976 | 1997 | 1994 | 1992 | 1975 | 1988 | 1976 | 1989 | 1977 |
| Mean Temperature (F) | 44.2 | 48.0 | 55.7 | 62.3 | 70.6 | 77.8 | 81.1 | 80.4 | 75.2 | 64.0 | 54.5 | 46.8 | 63.4 |
| Highest Mean Temperature (F) | 56.3 | 55.0 | 60.8 | 67.4 | 74.8 | 81.4 | 83.8 | 84.0 | 81.2 | 71.0 | 62.1 | 56.6 | 84.0 |
| Year Highest Occurred | 1974 | 1990 | 1997 | 1981 | 2000 | 1981 | 1980 | 1980 | 1980 | 1984 | 1985 | 1984 | 1980 |
| Lowest Mean Temperature (F) | 33.4 | 38.2 | 49.9 | 57.2 | 65.7 | 74.6 | 78.3 | 76.8 | 71.4 | 58.7 | 46.2 | 38.4 | 33.4 |
| Year Lowest Occurred | 1977 | 1978 | 1971 | 1983 | 1976 | 1983 | 1984 | 1984 | 1984 | 1987 | 1976 | 1989 | 1977 |
| Mean Min. Temperature (F) | 33.2 | 36.1 | 43.3 | 49.3 | 58.7 | 66.7 | 70.4 | 69.5 | 63.4 | 50.7 | 41.6 | 35.2 | 51.5 |
| Highest Mean Min. Temperature (F) | 47.4 | 43.8 | 49.9 | 56.0 | 65.1 | 70.0 | 72.5 | 73.2 | 69.1 | 59.7 | 51.9 | 46.6 | 73.2 |
| Year Highest Occurred | 1974 | 1990 | 1973 | 1991 | 1991 | 1998 | 1998 | 1980 | 1980 | 1985 | 1985 | 1971 | 1980 |
| Lowest Mean Min. Temperature (F) | 22.5 | 25.2 | 37.1 | 43.8 | 53.6 | 62.3 | 65.6 | 65.4 | 56.2 | 41.0 | 32.9 | 26.7 | 22.5 |
| Year Lowest Occurred | 1977 | 1978 | 1971 | 1983 | 1971 | 1984 | 1984 | 1984 | 1984 | 1987 | 1976 | 2000 | 1977 |
| Mean Precipitation (in.) | 5.85 | 4.69 | 6.43 | 4.83 | 4.09 | 4.43 | 5.06 | 3.35 | 3.95 | 2.97 | 4.36 | 5.03 | 55.04 |
| Highest Precipitation (in.) | 12.40 | 8.47 | 12.98 | 12.50 | 8.54 | 12.47 | 12.77 | 6.82 | 9.08 | 8.80 | 13.15 | 9.21 | 13.15 |
| Year Highest Occurred | 1972 | 1990 | 1976 | 1979 | 1978 | 1997 | 1988 | 1993 | 1998 | 1995 | 1986 | 1971 | 1986 |
| Lowest Precipitation (in.) | 1.51 | 1.52 | 1.52 | 0.24 | 0.42 | 0.72 | 0.84 | 1.10 | 0.71 | 0.65 | 0.90 | 0.98 | 0.24 |
| Year Lowest Occurred | 1986 | 2000 | 1985 | 1986 | 1988 | 1986 | 2000 | 1988 | 1990 | 1987 | 1981 | 1980 | 1986 |
| Heating Degree Days (F) | 651. | 477. | 307. | 129. | 25. | 0. | 0. | 0. | 6. | 118. | 333. | 574. | 2620. |
| Cooling Degree Days (F) | 0. | 0. | 18. | 46. | 199. | 383. | 499. | 477. | 310. | 85. | 16. | 7. | 2040. |