| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.1 | 51.2 | 55.5 | 60.0 | 66.6 | 73.6 | 79.8 | 80.4 | 74.8 | 64.1 | 52.6 | 46.3 | 62.6 |
| Highest Mean Max. Temperature (F) | 51.4 | 58.5 | 60.3 | 64.5 | 71.4 | 79.4 | 85.7 | 90.7 | 83.7 | 71.9 | 55.3 | 51.7 | 65.2 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1965 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 37.8 | 42.9 | 51.7 | 55.8 | 60.6 | 66.8 | 72.2 | 75.1 | 68.8 | 58.4 | 45.1 | 39.6 | 61.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1980 | 1983 | 1989 | 1986 | 1984 | 1985 | 1990 | 1983 |
| Mean Temperature (F) | 39.1 | 43.1 | 46.5 | 49.8 | 55.2 | 61.2 | 65.4 | 65.8 | 61.2 | 53.3 | 45.3 | 39.9 | 52.2 |
| Highest Mean Temperature (F) | 43.8 | 48.7 | 51.2 | 54.0 | 58.8 | 64.7 | 69.5 | 71.7 | 66.4 | 56.9 | 48.9 | 44.7 | 53.7 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1989 | 1987 | 1961 | 1985 | 1967 | 1974 | 1987 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 30.9 | 35.2 | 43.5 | 46.0 | 51.5 | 57.5 | 62.3 | 62.1 | 58.1 | 50.0 | 37.6 | 33.5 | 50.3 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1984 | 1983 | 1965 | 1970 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 32.1 | 34.9 | 37.4 | 39.5 | 43.7 | 48.9 | 51.0 | 51.2 | 47.6 | 42.4 | 38.0 | 33.4 | 41.7 |
| Highest Mean Min. Temperature (F) | 37.8 | 40.3 | 42.0 | 43.5 | 48.3 | 52.7 | 54.1 | 56.0 | 52.4 | 46.8 | 42.5 | 39.2 | 43.6 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1989 | 1987 | 1986 | 1990 | 1990 | 1963 | 1988 | 1965 | 1966 | 1987 |
| Lowest Mean Min. Temperature (F) | 23.9 | 27.5 | 34.3 | 35.1 | 40.9 | 44.7 | 47.5 | 42.5 | 43.8 | 38.9 | 30.0 | 24.8 | 39.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1966 | 1962 | 1962 | 1965 | 1972 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.22 | 5.76 | 5.31 | 3.65 | 2.91 | 2.16 | 0.86 | 1.33 | 2.22 | 3.97 | 7.99 | 8.23 | 51.61 |
| Highest Precipitation (in.) | 14.49 | 12.56 | 9.53 | 6.74 | 5.78 | 5.79 | 3.62 | 7.21 | 6.07 | 8.26 | 17.62 | 15.46 | 64.91 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1978 | 1977 | 1969 | 1983 | 1968 | 1977 | 1979 | 1973 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.48 | 1.43 | 0.83 | 1.20 | 0.87 | 0.55 | 0.00 | 0.00 | 0.03 | 0.13 | 1.77 | 2.46 | 32.15 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1966 | 1966 | 1965 | 1973 | 1988 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 803. | 613. | 574. | 456. | 304. | 138. | 51. | 67. | 140. | 363. | 591. | 778. | 4878. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 24. | 64. | 92. | 26. | 0. | 0. | 0. | 206. |