| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.7 | 60.0 | 64.0 | 71.1 | 80.3 | 87.8 | 93.2 | 92.1 | 87.3 | 77.9 | 63.1 | 52.7 | 73.5 |
| Highest Mean Max. Temperature (F) | 59.5 | 67.1 | 71.6 | 78.1 | 86.7 | 95.1 | 99.1 | 98.5 | 94.0 | 82.4 | 69.9 | 59.5 | 76.5 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1966 | 1976 | 1961 | 1988 | 1967 | 1975 | 1990 | 1986 | 1976 | 1988 |
| Lowest Mean Max. Temperature (F) | 47.4 | 53.3 | 58.5 | 58.5 | 71.4 | 80.2 | 87.9 | 87.1 | 80.2 | 72.5 | 54.1 | 45.6 | 69.1 |
| Year Lowest Occurred | 1961 | 1969 | 1975 | 1967 | 1977 | 1982 | 1983 | 1982 | 1986 | 1972 | 1982 | 1963 | 1982 |
| Mean Temperature (F) | 45.2 | 50.7 | 53.6 | 58.3 | 65.3 | 71.6 | 75.7 | 75.1 | 71.5 | 64.2 | 53.3 | 45.3 | 60.8 |
| Highest Mean Temperature (F) | 51.4 | 55.9 | 58.8 | 63.4 | 70.1 | 76.4 | 80.4 | 79.0 | 77.4 | 67.6 | 60.3 | 51.0 | 62.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1976 | 1961 | 1988 | 1967 | 1975 | 1987 | 1981 | 1983 | 1988 |
| Lowest Mean Temperature (F) | 41.0 | 47.1 | 50.3 | 49.6 | 59.4 | 66.3 | 71.8 | 71.4 | 66.2 | 61.0 | 46.9 | 40.6 | 57.7 |
| Year Lowest Occurred | 1972 | 1989 | 1975 | 1967 | 1977 | 1982 | 1987 | 1980 | 1986 | 1982 | 1982 | 1972 | 1982 |
| Mean Min. Temperature (F) | 37.7 | 41.4 | 43.2 | 45.5 | 50.3 | 55.3 | 58.1 | 58.0 | 55.7 | 50.4 | 43.4 | 37.8 | 48.1 |
| Highest Mean Min. Temperature (F) | 45.4 | 47.2 | 49.7 | 50.1 | 54.4 | 58.1 | 61.9 | 61.3 | 60.7 | 54.1 | 52.3 | 45.4 | 50.3 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1989 | 1987 | 1981 | 1984 | 1983 | 1975 | 1983 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 31.7 | 36.1 | 39.3 | 40.3 | 47.1 | 52.1 | 55.4 | 55.2 | 51.6 | 46.3 | 39.0 | 29.7 | 46.3 |
| Year Lowest Occurred | 1963 | 1964 | 1977 | 1975 | 1964 | 1965 | 1987 | 1980 | 1965 | 1971 | 1978 | 1990 | 1982 |
| Mean Precipitation (in.) | 3.73 | 2.87 | 2.57 | 1.16 | 0.27 | 0.12 | 0.05 | 0.07 | 0.37 | 1.08 | 2.72 | 2.51 | 17.52 |
| Highest Precipitation (in.) | 9.14 | 8.77 | 7.12 | 4.21 | 2.10 | 0.60 | 0.79 | 0.65 | 2.78 | 7.51 | 7.41 | 6.03 | 33.44 |
| Year Highest Occurred | 1978 | 1962 | 1982 | 1983 | 1990 | 1967 | 1974 | 1976 | 1989 | 1962 | 1970 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.16 | 0.15 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 6.25 |
| Year Lowest Occurred | 1984 | 1964 | 1966 | 1985 | 1987 | 1990 | 1990 | 1990 | 1990 | 1978 | 1980 | 1989 | 1976 |
| Heating Degree Days (F) | 614. | 400. | 357. | 230. | 80. | 12. | 0. | 0. | 16. | 78. | 351. | 611. | 2749. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 29. | 89. | 210. | 332. | 313. | 211. | 53. | 0. | 0. | 1237. |