| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.5 | 47.0 | 52.1 | 58.6 | 66.6 | 75.2 | 83.7 | 83.4 | 74.8 | 64.6 | 48.9 | 41.6 | 61.5 |
| Highest Mean Max. Temperature (F) | 49.1 | 54.2 | 57.8 | 66.5 | 74.4 | 83.0 | 91.1 | 90.8 | 83.2 | 72.5 | 53.0 | 51.6 | 63.8 |
| Year Highest Occurred | 1983 | 1963 | 1968 | 1977 | 1966 | 1977 | 1985 | 1967 | 1967 | 1987 | 1980 | 1980 | 1967 |
| Lowest Mean Max. Temperature (F) | 25.6 | 36.1 | 45.8 | 51.0 | 60.4 | 67.2 | 78.6 | 74.5 | 66.3 | 54.4 | 34.8 | 31.7 | 57.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1984 | 1986 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 32.8 | 37.0 | 40.4 | 44.8 | 51.1 | 58.7 | 64.3 | 64.5 | 57.3 | 49.1 | 39.2 | 33.3 | 47.7 |
| Highest Mean Temperature (F) | 41.4 | 43.0 | 47.3 | 49.4 | 55.4 | 65.3 | 69.6 | 72.0 | 62.9 | 53.9 | 43.5 | 41.7 | 49.5 |
| Year Highest Occurred | 1983 | 1961 | 1983 | 1987 | 1983 | 1977 | 1985 | 1977 | 1963 | 1988 | 1983 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 15.8 | 24.4 | 35.5 | 39.1 | 47.3 | 51.8 | 59.6 | 59.7 | 51.2 | 41.9 | 26.0 | 24.3 | 44.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1967 | 1964 | 1976 | 1986 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 24.1 | 26.9 | 28.6 | 31.0 | 35.5 | 42.0 | 44.8 | 45.5 | 39.8 | 33.6 | 29.5 | 25.1 | 33.9 |
| Highest Mean Min. Temperature (F) | 33.7 | 33.6 | 39.1 | 34.3 | 39.8 | 47.6 | 51.1 | 54.7 | 46.1 | 37.9 | 35.6 | 32.3 | 37.1 |
| Year Highest Occurred | 1983 | 1983 | 1983 | 1981 | 1983 | 1977 | 1975 | 1977 | 1963 | 1977 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 5.9 | 12.6 | 21.4 | 25.0 | 28.3 | 34.8 | 40.5 | 40.8 | 34.1 | 29.3 | 17.2 | 15.5 | 30.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1964 | 1964 | 1976 | 1986 | 1969 | 1965 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.67 | 1.23 | 1.35 | 1.37 | 1.28 | 1.06 | 0.50 | 0.81 | 0.84 | 1.17 | 1.95 | 1.80 | 15.03 |
| Highest Precipitation (in.) | 4.59 | 3.33 | 3.25 | 3.15 | 3.97 | 3.07 | 2.48 | 3.81 | 2.33 | 3.63 | 4.14 | 7.02 | 22.52 |
| Year Highest Occurred | 1970 | 1961 | 1984 | 1988 | 1981 | 1969 | 1978 | 1976 | 1982 | 1979 | 1988 | 1964 | 1981 |
| Lowest Precipitation (in.) | 0.23 | 0.09 | 0.47 | 0.02 | 0.08 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.49 | 0.19 | 7.75 |
| Year Lowest Occurred | 1984 | 1964 | 1964 | 1966 | 1964 | 1962 | 1988 | 1988 | 1975 | 1987 | 1976 | 1965 | 1974 |
| Heating Degree Days (F) | 998. | 784. | 763. | 606. | 431. | 218. | 96. | 96. | 250. | 493. | 774. | 983. | 6492. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 29. | 74. | 81. | 19. | 0. | 0. | 0. | 203. |