| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.0 | 60.9 | 64.3 | 71.6 | 82.0 | 91.0 | 97.8 | 96.2 | 89.8 | 78.7 | 63.0 | 54.7 | 75.4 |
| Highest Mean Max. Temperature (F) | 60.0 | 67.8 | 71.6 | 79.4 | 88.1 | 96.6 | 104.1 | 101.5 | 96.3 | 87.5 | 70.6 | 64.5 | 78.4 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1977 | 1976 | 1985 | 1988 | 1967 | 1974 | 1988 | 1976 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 49.4 | 52.6 | 58.4 | 57.6 | 73.3 | 84.2 | 88.9 | 90.1 | 80.3 | 71.1 | 55.2 | 46.4 | 72.7 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1973 | 1972 | 1982 |
| Mean Temperature (F) | 46.0 | 50.8 | 53.7 | 59.2 | 68.0 | 76.4 | 81.8 | 80.2 | 74.6 | 64.9 | 53.0 | 46.1 | 62.9 |
| Highest Mean Temperature (F) | 51.2 | 55.8 | 58.8 | 65.4 | 72.3 | 81.8 | 87.3 | 84.2 | 79.5 | 71.6 | 58.4 | 50.3 | 65.0 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1969 | 1985 | 1988 | 1967 | 1979 | 1978 | 1976 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 42.5 | 46.1 | 49.6 | 49.4 | 62.1 | 70.9 | 74.0 | 76.8 | 66.8 | 60.1 | 48.3 | 39.8 | 61.1 |
| Year Lowest Occurred | 1973 | 1969 | 1973 | 1967 | 1977 | 1980 | 1987 | 1968 | 1986 | 1984 | 1985 | 1972 | 1982 |
| Mean Min. Temperature (F) | 36.9 | 40.7 | 43.1 | 46.7 | 54.1 | 61.9 | 65.8 | 64.2 | 59.3 | 51.1 | 42.9 | 37.5 | 50.4 |
| Highest Mean Min. Temperature (F) | 45.5 | 46.8 | 49.7 | 51.4 | 57.6 | 67.1 | 70.5 | 67.6 | 63.3 | 55.9 | 48.4 | 42.8 | 53.1 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1990 | 1979 | 1981 | 1988 | 1978 | 1979 | 1978 | 1966 | 1964 | 1978 |
| Lowest Mean Min. Temperature (F) | 30.6 | 34.7 | 38.4 | 40.9 | 50.9 | 57.6 | 59.1 | 61.2 | 53.3 | 47.6 | 37.9 | 29.8 | 48.7 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1975 | 1977 | 1980 | 1987 | 1985 | 1986 | 1986 | 1990 | 1990 | 1989 |
| Mean Precipitation (in.) | 4.13 | 3.27 | 3.07 | 1.31 | 0.79 | 0.41 | 0.07 | 0.23 | 0.71 | 1.38 | 3.43 | 3.49 | 22.29 |
| Highest Precipitation (in.) | 10.17 | 8.63 | 9.21 | 4.91 | 3.29 | 1.63 | 0.69 | 1.56 | 4.95 | 5.17 | 8.42 | 10.29 | 48.98 |
| Year Highest Occurred | 1978 | 1969 | 1983 | 1963 | 1977 | 1982 | 1974 | 1965 | 1989 | 1989 | 1970 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.22 | 0.02 | 0.58 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.30 | 0.00 | 7.20 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1987 | 1976 | 1990 | 1989 | 1987 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 589. | 398. | 354. | 226. | 46. | 0. | 0. | 0. | 10. | 94. | 360. | 586. | 2663. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 52. | 139. | 346. | 521. | 471. | 298. | 91. | 0. | 0. | 1918. |