| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.3 | 44.4 | 51.0 | 60.2 | 69.6 | 79.9 | 85.3 | 82.6 | 75.9 | 66.1 | 51.6 | 42.0 | 62.4 |
| Highest Mean Max. Temperature (F) | 49.9 | 50.7 | 61.1 | 69.2 | 76.0 | 85.7 | 89.5 | 86.5 | 81.7 | 72.0 | 58.4 | 52.2 | 65.4 |
| Year Highest Occurred | 1981 | 1981 | 1989 | 1989 | 1984 | 1974 | 1989 | 1969 | 1979 | 1965 | 1966 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 31.9 | 38.4 | 43.2 | 51.0 | 63.9 | 73.1 | 81.2 | 75.5 | 69.6 | 57.4 | 44.6 | 32.7 | 60.3 |
| Year Lowest Occurred | 1979 | 1966 | 1973 | 1975 | 1977 | 1967 | 1965 | 1968 | 1986 | 1984 | 1972 | 1967 | 1982 |
| Mean Temperature (F) | 24.1 | 29.0 | 35.2 | 42.4 | 50.7 | 59.2 | 65.8 | 63.7 | 56.1 | 46.2 | 34.7 | 25.7 | 44.4 |
| Highest Mean Temperature (F) | 32.6 | 33.7 | 42.1 | 48.8 | 55.7 | 63.1 | 68.6 | 67.9 | 59.9 | 50.7 | 39.0 | 33.4 | 47.1 |
| Year Highest Occurred | 1986 | 1970 | 1989 | 1989 | 1984 | 1981 | 1990 | 1969 | 1990 | 1963 | 1962 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 15.6 | 23.0 | 28.3 | 36.0 | 47.0 | 54.9 | 62.9 | 59.6 | 51.2 | 41.0 | 28.8 | 18.1 | 42.3 |
| Year Lowest Occurred | 1989 | 1985 | 1964 | 1975 | 1965 | 1965 | 1987 | 1968 | 1965 | 1984 | 1964 | 1967 | 1964 |
| Mean Min. Temperature (F) | 7.8 | 13.4 | 19.2 | 24.5 | 31.7 | 38.5 | 46.2 | 44.7 | 36.2 | 26.3 | 17.7 | 9.3 | 26.3 |
| Highest Mean Min. Temperature (F) | 16.0 | 18.7 | 26.3 | 29.0 | 35.3 | 42.9 | 49.7 | 49.3 | 41.2 | 34.0 | 22.5 | 17.5 | 28.9 |
| Year Highest Occurred | 1986 | 1986 | 1978 | 1990 | 1984 | 1988 | 1990 | 1969 | 1963 | 1972 | 1978 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | -1.6 | 6.0 | 12.5 | 20.3 | 29.0 | 35.1 | 42.7 | 40.0 | 31.0 | 22.3 | 10.1 | 0.3 | 23.4 |
| Year Lowest Occurred | 1989 | 1964 | 1964 | 1970 | 1972 | 1965 | 1979 | 1974 | 1965 | 1970 | 1964 | 1990 | 1964 |
| Mean Precipitation (in.) | 0.48 | 0.61 | 0.79 | 0.67 | 0.82 | 0.63 | 1.50 | 1.78 | 1.05 | 0.71 | 0.75 | 0.53 | 10.32 |
| Highest Precipitation (in.) | 1.43 | 2.09 | 1.97 | 2.39 | 1.99 | 2.23 | 2.98 | 5.17 | 5.14 | 2.74 | 3.23 | 1.64 | 17.06 |
| Year Highest Occurred | 1980 | 1980 | 1961 | 1988 | 1967 | 1972 | 1968 | 1987 | 1967 | 1972 | 1978 | 1971 | 1967 |
| Lowest Precipitation (in.) | 0.09 | 0.00 | 0.05 | 0.04 | 0.00 | 0.00 | 0.37 | 0.00 | 0.01 | 0.00 | 0.11 | 0.00 | 6.15 |
| Year Lowest Occurred | 1981 | 1964 | 1972 | 1977 | 1974 | 1987 | 1971 | 1985 | 1989 | 1964 | 1989 | 1989 | 1989 |
| Heating Degree Days (F) | 1268. | 1008. | 924. | 678. | 443. | 184. | 37. | 77. | 271. | 583. | 909. | 1218. | 7600. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 10. | 62. | 37. | 0. | 0. | 0. | 0. | 109. |