| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.9 | 61.1 | 70.4 | 79.2 | 85.9 | 91.3 | 93.8 | 93.1 | 86.0 | 77.6 | 67.1 | 58.5 | 76.7 |
| Highest Mean Max. Temperature (F) | 62.7 | 71.2 | 79.3 | 85.5 | 91.4 | 97.5 | 100.5 | 97.8 | 95.2 | 86.4 | 73.6 | 65.5 | 78.2 |
| Year Highest Occurred | 1971 | 1976 | 1974 | 1978 | 1962 | 1990 | 1980 | 1962 | 1977 | 1979 | 1981 | 1970 | 1977 |
| Lowest Mean Max. Temperature (F) | 46.7 | 54.1 | 60.5 | 71.2 | 81.3 | 87.4 | 83.9 | 85.2 | 76.3 | 69.1 | 59.7 | 46.8 | 74.8 |
| Year Lowest Occurred | 1979 | 1973 | 1969 | 1973 | 1966 | 1986 | 1976 | 1971 | 1974 | 1976 | 1976 | 1983 | 1968 |
| Mean Temperature (F) | 40.6 | 45.4 | 53.7 | 63.0 | 71.0 | 77.8 | 80.6 | 79.8 | 73.1 | 63.3 | 52.0 | 43.3 | 62.0 |
| Highest Mean Temperature (F) | 45.9 | 52.5 | 61.0 | 69.1 | 76.0 | 84.0 | 85.8 | 83.7 | 78.9 | 68.4 | 57.1 | 48.8 | 63.3 |
| Year Highest Occurred | 1969 | 1976 | 1974 | 1967 | 1989 | 1990 | 1980 | 1982 | 1977 | 1979 | 1965 | 1970 | 1982 |
| Lowest Mean Temperature (F) | 34.0 | 39.7 | 45.6 | 55.1 | 66.9 | 75.3 | 74.2 | 74.1 | 65.9 | 54.4 | 45.2 | 33.7 | 60.0 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1976 | 1987 | 1976 | 1971 | 1974 | 1976 | 1976 | 1983 | 1976 |
| Mean Min. Temperature (F) | 25.2 | 29.7 | 36.9 | 46.9 | 56.0 | 64.2 | 67.2 | 66.5 | 60.2 | 48.9 | 37.0 | 28.0 | 47.2 |
| Highest Mean Min. Temperature (F) | 31.1 | 34.4 | 43.8 | 53.7 | 60.9 | 70.5 | 71.1 | 69.9 | 65.5 | 54.2 | 41.4 | 35.6 | 49.4 |
| Year Highest Occurred | 1969 | 1986 | 1967 | 1967 | 1989 | 1990 | 1980 | 1982 | 1983 | 1983 | 1983 | 1984 | 1986 |
| Lowest Mean Min. Temperature (F) | 18.2 | 24.6 | 30.5 | 39.0 | 51.4 | 60.9 | 61.0 | 62.9 | 53.9 | 39.7 | 30.7 | 20.5 | 44.8 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1973 | 1976 | 1973 | 1975 | 1971 | 1975 | 1976 | 1976 | 1983 | 1976 |
| Mean Precipitation (in.) | 0.59 | 0.74 | 0.68 | 1.17 | 2.19 | 1.98 | 2.03 | 2.02 | 3.32 | 1.84 | 0.82 | 0.62 | 18.00 |
| Highest Precipitation (in.) | 2.43 | 2.95 | 2.33 | 3.46 | 4.56 | 4.92 | 8.06 | 4.97 | 9.76 | 9.31 | 3.11 | 2.55 | 27.54 |
| Year Highest Occurred | 1968 | 1989 | 1973 | 1966 | 1968 | 1961 | 1976 | 1972 | 1980 | 1986 | 1984 | 1986 | 1986 |
| 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 | 0.00 | 10.62 |
| Year Lowest Occurred | 1988 | 1974 | 1986 | 1984 | 1962 | 1973 | 1983 | 1961 | 1983 | 1988 | 1988 | 1985 | 1983 |
| Heating Degree Days (F) | 756. | 549. | 366. | 134. | 15. | 0. | 0. | 0. | 10. | 124. | 394. | 673. | 3021. |
| Cooling Degree Days (F) | 0. | 0. | 16. | 74. | 201. | 384. | 484. | 459. | 253. | 71. | 0. | 0. | 1942. |