| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.7 | 43.7 | 51.3 | 59.9 | 68.9 | 77.6 | 87.4 | 86.9 | 77.6 | 64.6 | 47.4 | 38.2 | 61.7 |
| Highest Mean Max. Temperature (F) | 42.6 | 53.5 | 58.6 | 70.7 | 73.5 | 84.1 | 92.7 | 94.7 | 86.6 | 76.3 | 52.7 | 44.3 | 65.3 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1987 | 1974 | 1968 | 1967 | 1987 | 1988 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 27.4 | 33.4 | 44.3 | 52.5 | 61.5 | 70.8 | 82.6 | 79.3 | 68.5 | 58.1 | 34.7 | 30.2 | 58.5 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1970 | 1962 | 1966 | 1986 | 1976 | 1985 | 1969 | 1985 | 1990 | 1985 |
| Mean Temperature (F) | 28.6 | 34.0 | 39.6 | 45.8 | 53.2 | 60.7 | 66.6 | 65.9 | 57.7 | 47.8 | 37.6 | 30.2 | 47.3 |
| Highest Mean Temperature (F) | 35.3 | 41.4 | 45.4 | 52.7 | 57.0 | 64.7 | 70.5 | 71.7 | 64.4 | 55.0 | 42.1 | 36.4 | 48.8 |
| Year Highest Occurred | 1967 | 1963 | 1986 | 1987 | 1987 | 1977 | 1975 | 1961 | 1967 | 1988 | 1965 | 1979 | 1981 |
| Lowest Mean Temperature (F) | 16.5 | 21.4 | 35.9 | 41.0 | 49.0 | 55.6 | 63.1 | 61.9 | 51.9 | 43.8 | 25.7 | 19.7 | 43.6 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1962 | 1966 | 1986 | 1964 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 20.5 | 24.2 | 27.9 | 31.7 | 37.4 | 43.8 | 45.9 | 44.9 | 37.8 | 30.9 | 27.8 | 22.2 | 32.9 |
| Highest Mean Min. Temperature (F) | 28.6 | 31.6 | 33.3 | 34.8 | 40.4 | 47.0 | 51.8 | 51.1 | 43.4 | 37.5 | 32.6 | 29.7 | 34.8 |
| Year Highest Occurred | 1967 | 1961 | 1983 | 1981 | 1987 | 1982 | 1975 | 1983 | 1967 | 1975 | 1983 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 5.6 | 9.3 | 21.8 | 27.9 | 33.4 | 40.3 | 41.9 | 39.4 | 31.4 | 21.4 | 16.7 | 8.8 | 28.8 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1966 | 1966 | 1966 | 1962 | 1987 | 1965 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 3.09 | 2.43 | 2.22 | 1.71 | 1.71 | 1.48 | 0.63 | 0.83 | 1.08 | 1.72 | 3.09 | 3.44 | 23.43 |
| Highest Precipitation (in.) | 8.89 | 5.30 | 4.04 | 3.70 | 3.09 | 2.66 | 2.94 | 2.98 | 3.14 | 4.13 | 7.74 | 9.72 | 29.61 |
| Year Highest Occurred | 1970 | 1968 | 1983 | 1978 | 1984 | 1981 | 1982 | 1965 | 1973 | 1962 | 1973 | 1964 | 1975 |
| Lowest Precipitation (in.) | 0.27 | 0.57 | 0.51 | 0.21 | 0.26 | 0.42 | 0.00 | 0.00 | 0.00 | 0.00 | 0.49 | 0.54 | 15.54 |
| Year Lowest Occurred | 1985 | 1967 | 1965 | 1966 | 1966 | 1978 | 1973 | 1981 | 1974 | 1987 | 1976 | 1976 | 1987 |
| Heating Degree Days (F) | 1128. | 868. | 787. | 576. | 366. | 152. | 35. | 74. | 246. | 533. | 822. | 1079. | 6666. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 23. | 85. | 102. | 27. | 0. | 0. | 0. | 237. |