| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.0 | 41.6 | 43.9 | 50.4 | 59.7 | 68.8 | 77.4 | 76.6 | 69.1 | 59.2 | 47.1 | 40.9 | 56.2 |
| Highest Mean Max. Temperature (F) | 46.8 | 48.3 | 51.1 | 59.7 | 66.4 | 74.4 | 81.4 | 81.6 | 74.8 | 69.9 | 53.5 | 47.8 | 59.9 |
| Year Highest Occurred | 1961 | 1963 | 1988 | 1987 | 1966 | 1961 | 1988 | 1981 | 1987 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 35.2 | 35.3 | 38.4 | 39.4 | 48.7 | 62.1 | 71.5 | 66.9 | 60.9 | 52.9 | 41.0 | 35.0 | 53.8 |
| Year Lowest Occurred | 1973 | 1969 | 1977 | 1967 | 1977 | 1963 | 1983 | 1976 | 1986 | 1984 | 1964 | 1970 | 1965 |
| Mean Temperature (F) | 29.8 | 31.1 | 33.5 | 38.6 | 46.3 | 54.2 | 61.0 | 60.6 | 54.2 | 45.8 | 36.6 | 30.8 | 43.5 |
| Highest Mean Temperature (F) | 36.5 | 38.8 | 38.6 | 45.2 | 51.4 | 58.4 | 64.4 | 64.6 | 58.3 | 52.0 | 40.0 | 35.3 | 45.8 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1985 | 1988 | 1967 | 1981 | 1988 | 1976 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 25.5 | 26.4 | 25.8 | 29.4 | 39.2 | 50.1 | 56.3 | 53.7 | 48.7 | 40.5 | 32.4 | 25.4 | 41.8 |
| Year Lowest Occurred | 1982 | 1969 | 1977 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1971 | 1964 | 1971 | 1975 |
| Mean Min. Temperature (F) | 19.5 | 20.6 | 23.1 | 26.8 | 32.8 | 39.4 | 44.6 | 44.6 | 39.3 | 32.4 | 26.1 | 20.7 | 30.8 |
| Highest Mean Min. Temperature (F) | 26.4 | 29.2 | 29.1 | 31.9 | 36.5 | 42.7 | 48.3 | 49.0 | 43.9 | 36.3 | 29.6 | 26.5 | 32.8 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1987 | 1985 | 1984 | 1967 | 1967 | 1963 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 13.4 | 13.4 | 13.2 | 19.3 | 29.2 | 36.0 | 40.4 | 40.4 | 35.7 | 27.4 | 21.9 | 13.1 | 28.3 |
| Year Lowest Occurred | 1989 | 1990 | 1977 | 1967 | 1975 | 1978 | 1977 | 1976 | 1970 | 1971 | 1978 | 1990 | 1977 |
| Mean Precipitation (in.) | 5.60 | 4.83 | 4.06 | 1.99 | 0.98 | 0.85 | 0.30 | 0.52 | 0.91 | 2.05 | 4.70 | 5.40 | 32.19 |
| Highest Precipitation (in.) | 22.82 | 22.25 | 10.95 | 7.80 | 3.00 | 2.64 | 2.66 | 2.56 | 4.78 | 8.34 | 13.55 | 27.55 | 57.61 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1963 | 1964 | 1963 | 1974 | 1965 | 1982 | 1962 | 1981 | 1964 | 1982 |
| Lowest Precipitation (in.) | 0.35 | 0.07 | 0.57 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.63 | 0.00 | 9.34 |
| Year Lowest Occurred | 1985 | 1988 | 1988 | 1985 | 1985 | 1981 | 1989 | 1987 | 1987 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 1091. | 949. | 977. | 792. | 580. | 324. | 143. | 164. | 329. | 595. | 852. | 1060. | 7856. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 19. | 28. | 5. | 0. | 0. | 0. | 52. |