| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.7 | 50.7 | 61.9 | 71.2 | 78.5 | 84.7 | 87.1 | 86.4 | 81.0 | 71.2 | 60.0 | 49.7 | 69.0 |
| Highest Mean Max. Temperature (F) | 56.6 | 61.1 | 67.3 | 76.4 | 86.0 | 87.9 | 91.2 | 90.7 | 84.7 | 78.4 | 65.5 | 58.7 | 71.2 |
| Year Highest Occurred | 1974 | 1976 | 1973 | 1981 | 1962 | 1964 | 1980 | 1987 | 1978 | 1963 | 1985 | 1971 | 1990 |
| Lowest Mean Max. Temperature (F) | 33.5 | 41.9 | 53.6 | 63.6 | 73.2 | 81.6 | 83.0 | 82.6 | 77.3 | 63.7 | 52.7 | 38.5 | 67.5 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1961 | 1989 | 1961 | 1967 | 1967 | 1966 | 1988 | 1976 | 1989 | 1989 |
| Mean Temperature (F) | 36.1 | 39.7 | 49.4 | 57.8 | 65.7 | 72.6 | 75.8 | 75.1 | 69.4 | 58.5 | 48.9 | 40.0 | 57.4 |
| Highest Mean Temperature (F) | 48.4 | 48.0 | 55.6 | 62.1 | 71.7 | 75.5 | 78.8 | 78.4 | 73.4 | 65.5 | 56.9 | 48.8 | 60.0 |
| Year Highest Occurred | 1974 | 1990 | 1973 | 1981 | 1962 | 1986 | 1977 | 1987 | 1978 | 1984 | 1985 | 1971 | 1990 |
| Lowest Mean Temperature (F) | 25.2 | 31.8 | 41.8 | 52.0 | 62.0 | 69.4 | 72.5 | 72.1 | 64.3 | 52.0 | 41.4 | 30.0 | 55.7 |
| Year Lowest Occurred | 1977 | 1978 | 1969 | 1961 | 1989 | 1972 | 1967 | 1967 | 1967 | 1988 | 1976 | 1963 | 1963 |
| Mean Min. Temperature (F) | 26.4 | 28.6 | 36.8 | 44.4 | 52.8 | 60.5 | 64.5 | 63.8 | 57.7 | 45.8 | 37.8 | 30.3 | 45.8 |
| Highest Mean Min. Temperature (F) | 40.1 | 36.8 | 43.8 | 47.9 | 58.1 | 63.4 | 67.3 | 66.5 | 62.1 | 54.1 | 48.3 | 38.9 | 48.7 |
| Year Highest Occurred | 1974 | 1990 | 1973 | 1965 | 1987 | 1987 | 1986 | 1983 | 1978 | 1984 | 1985 | 1971 | 1990 |
| Lowest Mean Min. Temperature (F) | 16.8 | 19.8 | 29.9 | 40.1 | 48.9 | 57.1 | 61.2 | 61.1 | 50.5 | 39.4 | 30.1 | 21.2 | 43.4 |
| Year Lowest Occurred | 1977 | 1968 | 1969 | 1982 | 1961 | 1972 | 1963 | 1976 | 1967 | 1987 | 1976 | 1963 | 1963 |
| Mean Precipitation (in.) | 3.70 | 3.71 | 3.93 | 3.48 | 3.98 | 3.67 | 4.74 | 3.69 | 3.27 | 2.92 | 3.19 | 3.51 | 43.79 |
| Highest Precipitation (in.) | 7.84 | 7.33 | 10.15 | 6.68 | 9.06 | 6.90 | 9.33 | 6.62 | 7.10 | 5.68 | 7.22 | 7.19 | 56.86 |
| Year Highest Occurred | 1974 | 1982 | 1975 | 1977 | 1974 | 1975 | 1971 | 1966 | 1982 | 1990 | 1985 | 1961 | 1982 |
| Lowest Precipitation (in.) | 1.52 | 0.55 | 1.25 | 0.47 | 1.46 | 1.24 | 2.07 | 1.20 | 0.35 | 0.12 | 1.23 | 0.30 | 33.86 |
| Year Lowest Occurred | 1981 | 1968 | 1983 | 1986 | 1970 | 1986 | 1987 | 1962 | 1984 | 1963 | 1990 | 1965 | 1968 |
| Heating Degree Days (F) | 896. | 708. | 484. | 228. | 76. | 0. | 0. | 0. | 20. | 231. | 483. | 775. | 3901. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 98. | 228. | 335. | 313. | 152. | 29. | 0. | 0. | 1167. |