| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.3 | 35.1 | 42.1 | 54.5 | 64.9 | 74.8 | 84.2 | 82.5 | 72.6 | 60.1 | 41.8 | 30.0 | 56.0 |
| Highest Mean Max. Temperature (F) | 38.7 | 43.2 | 52.6 | 67.8 | 71.0 | 82.6 | 89.6 | 88.0 | 79.0 | 69.2 | 47.9 | 38.9 | 59.5 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1966 | 1988 | 1966 | 1969 | 1966 | 1988 | 1976 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 19.4 | 27.6 | 34.3 | 44.0 | 57.5 | 67.7 | 78.5 | 75.5 | 62.7 | 52.7 | 35.7 | 21.7 | 53.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1978 | 1964 | 1987 | 1968 | 1965 | 1970 | 1985 | 1990 | 1975 |
| Mean Temperature (F) | 17.5 | 22.7 | 30.3 | 41.0 | 50.2 | 58.7 | 66.1 | 64.2 | 54.8 | 44.6 | 30.5 | 18.4 | 41.6 |
| Highest Mean Temperature (F) | 25.8 | 33.0 | 38.8 | 48.0 | 54.6 | 65.6 | 69.6 | 68.4 | 61.2 | 52.8 | 36.0 | 25.0 | 44.9 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1966 | 1961 | 1985 | 1967 | 1966 | 1988 | 1965 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 8.2 | 12.5 | 22.7 | 33.7 | 45.5 | 53.9 | 61.3 | 59.5 | 47.3 | 37.8 | 22.9 | 10.0 | 38.0 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1978 | 1984 | 1986 | 1968 | 1965 | 1970 | 1985 | 1990 | 1984 |
| Mean Min. Temperature (F) | 5.7 | 10.3 | 18.4 | 27.4 | 35.4 | 42.6 | 47.9 | 45.8 | 36.9 | 29.0 | 19.1 | 6.8 | 27.1 |
| Highest Mean Min. Temperature (F) | 12.8 | 22.7 | 25.0 | 34.7 | 41.7 | 49.6 | 52.3 | 50.7 | 43.4 | 36.3 | 25.0 | 14.5 | 30.5 |
| Year Highest Occurred | 1990 | 1963 | 1986 | 1981 | 1981 | 1961 | 1985 | 1961 | 1966 | 1988 | 1965 | 1975 | 1981 |
| Lowest Mean Min. Temperature (F) | -3.0 | -2.9 | 10.3 | 22.0 | 32.6 | 37.7 | 43.1 | 38.9 | 28.7 | 22.9 | 10.0 | -6.3 | 22.3 |
| Year Lowest Occurred | 1979 | 1985 | 1969 | 1970 | 1975 | 1980 | 1966 | 1980 | 1984 | 1970 | 1985 | 1984 | 1984 |
| Mean Precipitation (in.) | 0.80 | 0.47 | 0.67 | 0.66 | 1.20 | 1.27 | 1.08 | 0.92 | 0.84 | 0.44 | 0.71 | 0.82 | 9.88 |
| Highest Precipitation (in.) | 3.74 | 1.86 | 2.84 | 2.04 | 3.16 | 3.27 | 3.54 | 2.71 | 2.65 | 1.71 | 2.25 | 3.28 | 14.83 |
| Year Highest Occurred | 1969 | 1962 | 1982 | 1978 | 1977 | 1967 | 1987 | 1968 | 1980 | 1981 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 5.65 |
| Year Lowest Occurred | 1961 | 1988 | 1978 | 1977 | 1974 | 1974 | 1988 | 1985 | 1987 | 1978 | 1976 | 1979 | 1988 |
| Heating Degree Days (F) | 1473. | 1184. | 1076. | 720. | 459. | 212. | 49. | 97. | 326. | 632. | 1035. | 1445. | 8708. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 23. | 83. | 73. | 20. | 0. | 0. | 0. | 199. |