| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 39.1 | 44.4 | 49.6 | 56.4 | 64.5 | 72.8 | 80.7 | 80.7 | 73.9 | 62.7 | 47.1 | 39.0 | 59.2 |
| Highest Mean Max. Temperature (F) | 48.7 | 53.9 | 57.6 | 68.5 | 70.6 | 81.1 | 88.0 | 89.3 | 83.6 | 74.0 | 54.8 | 44.1 | 62.9 |
| Year Highest Occurred | 1981 | 1977 | 1978 | 1987 | 1983 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1962 | 1987 |
| Lowest Mean Max. Temperature (F) | 33.4 | 36.4 | 41.4 | 49.3 | 56.6 | 65.0 | 73.1 | 73.6 | 65.4 | 55.8 | 38.3 | 32.6 | 56.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1962 | 1980 | 1963 | 1976 | 1978 | 1975 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 33.2 | 36.7 | 40.1 | 44.9 | 51.5 | 58.9 | 64.5 | 64.5 | 58.7 | 50.2 | 40.0 | 33.7 | 48.1 |
| Highest Mean Temperature (F) | 40.4 | 42.6 | 45.8 | 52.6 | 55.7 | 65.3 | 68.9 | 69.8 | 63.9 | 57.4 | 46.0 | 37.9 | 50.5 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1987 | 1961 | 1985 | 1961 | 1974 | 1988 | 1986 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 28.6 | 28.5 | 33.8 | 39.9 | 46.5 | 54.0 | 59.4 | 61.1 | 53.7 | 45.5 | 32.0 | 27.1 | 45.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1971 | 1963 | 1980 | 1970 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 27.2 | 29.0 | 30.6 | 33.4 | 38.4 | 45.0 | 48.3 | 48.3 | 43.5 | 37.6 | 32.8 | 28.4 | 36.9 |
| Highest Mean Min. Temperature (F) | 32.3 | 33.8 | 34.4 | 36.7 | 42.9 | 49.4 | 51.1 | 52.3 | 48.8 | 42.7 | 38.9 | 33.7 | 38.9 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1989 | 1987 | 1961 | 1975 | 1977 | 1963 | 1988 | 1986 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 20.6 | 20.5 | 26.1 | 29.5 | 35.6 | 41.2 | 45.7 | 44.2 | 39.0 | 33.5 | 25.6 | 21.5 | 34.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1971 | 1964 | 1976 | 1963 | 1980 | 1965 | 1971 | 1985 | 1990 | 1971 |
| Mean Precipitation (in.) | 11.38 | 9.22 | 8.03 | 4.99 | 3.51 | 2.32 | 0.88 | 1.19 | 2.69 | 5.55 | 11.69 | 12.78 | 74.23 |
| Highest Precipitation (in.) | 22.51 | 21.45 | 13.55 | 8.35 | 6.90 | 7.31 | 5.03 | 4.88 | 6.88 | 12.13 | 25.04 | 30.00 | 96.26 |
| Year Highest Occurred | 1970 | 1986 | 1961 | 1990 | 1977 | 1981 | 1983 | 1968 | 1986 | 1967 | 1973 | 1964 | 1971 |
| Lowest Precipitation (in.) | 0.23 | 2.37 | 1.86 | 1.50 | 0.54 | 0.60 | 0.00 | 0.00 | 0.00 | 0.13 | 3.11 | 1.23 | 46.74 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1982 | 1965 | 1984 | 1969 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 986. | 792. | 772. | 603. | 419. | 202. | 82. | 91. | 219. | 459. | 750. | 970. | 6345. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 19. | 67. | 76. | 30. | 0. | 0. | 0. | 192. |