| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 35.7 | 41.2 | 49.8 | 58.7 | 68.7 | 80.2 | 89.7 | 87.2 | 76.0 | 63.0 | 49.0 | 37.7 | 61.4 |
| Highest Mean Max. Temperature (F) | 41.6 | 49.7 | 56.3 | 66.2 | 76.9 | 87.0 | 93.0 | 91.3 | 82.3 | 72.3 | 59.2 | 45.5 | 64.3 |
| Year Highest Occurred | 1970 | 1963 | 1986 | 1977 | 1969 | 1961 | 1966 | 1969 | 1969 | 1988 | 1988 | 1981 | 1988 |
| Lowest Mean Max. Temperature (F) | 27.4 | 30.4 | 42.3 | 51.6 | 62.8 | 73.1 | 83.9 | 80.2 | 66.9 | 55.4 | 43.1 | 31.0 | 57.6 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1975 | 1977 | 1967 | 1982 | 1968 | 1965 | 1969 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 27.1 | 32.3 | 40.4 | 48.7 | 57.8 | 68.1 | 76.6 | 74.3 | 63.5 | 51.3 | 39.5 | 29.5 | 50.8 |
| Highest Mean Temperature (F) | 33.6 | 40.4 | 47.4 | 56.3 | 63.9 | 73.9 | 80.8 | 77.8 | 71.4 | 59.7 | 46.5 | 36.5 | 53.8 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1969 | 1986 | 1989 | 1986 | 1990 | 1988 | 1988 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 19.2 | 22.3 | 33.0 | 42.4 | 52.8 | 62.5 | 72.2 | 69.1 | 55.7 | 45.1 | 34.0 | 22.9 | 48.3 |
| Year Lowest Occurred | 1973 | 1984 | 1964 | 1975 | 1975 | 1975 | 1982 | 1968 | 1965 | 1970 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 18.4 | 23.3 | 31.0 | 38.6 | 46.9 | 55.9 | 63.5 | 61.3 | 50.8 | 39.6 | 29.9 | 21.3 | 40.0 |
| Highest Mean Min. Temperature (F) | 26.3 | 33.2 | 38.4 | 47.3 | 52.6 | 62.6 | 69.3 | 66.1 | 60.7 | 47.0 | 34.8 | 28.1 | 44.3 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1990 | 1987 | 1986 | 1989 | 1986 | 1990 | 1988 | 1965 | 1977 | 1990 |
| Lowest Mean Min. Temperature (F) | 9.9 | 14.1 | 23.7 | 33.1 | 40.7 | 49.6 | 55.6 | 56.3 | 44.5 | 33.8 | 23.5 | 14.4 | 37.4 |
| Year Lowest Occurred | 1973 | 1984 | 1964 | 1983 | 1975 | 1975 | 1968 | 1975 | 1965 | 1970 | 1979 | 1972 | 1975 |
| Mean Precipitation (in.) | 0.69 | 0.75 | 1.31 | 1.75 | 1.70 | 1.07 | 0.75 | 0.83 | 1.31 | 1.44 | 1.15 | 0.86 | 13.61 |
| Highest Precipitation (in.) | 1.86 | 1.81 | 2.53 | 4.54 | 3.44 | 3.08 | 2.67 | 4.10 | 5.42 | 3.84 | 3.33 | 3.26 | 22.49 |
| Year Highest Occurred | 1980 | 1969 | 1983 | 1984 | 1987 | 1967 | 1984 | 1983 | 1982 | 1981 | 1985 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 0.06 | 0.30 | 0.02 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.15 | 0.02 | 6.82 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1985 | 1972 | 1966 | 1964 | 1962 | 1979 | 1978 | 1976 | 1986 | 1966 |
| Heating Degree Days (F) | 1175. | 916. | 763. | 494. | 246. | 61. | 0. | 0. | 131. | 431. | 765. | 1101. | 6083. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 23. | 154. | 360. | 292. | 86. | 7. | 0. | 0. | 927. |