| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.5 | 53.4 | 57.8 | 62.9 | 69.3 | 76.5 | 83.6 | 84.1 | 78.1 | 67.0 | 54.3 | 48.0 | 65.3 |
| Highest Mean Max. Temperature (F) | 53.3 | 59.6 | 62.5 | 71.1 | 73.1 | 81.0 | 89.6 | 92.0 | 87.3 | 75.0 | 58.2 | 52.3 | 67.2 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1987 | 1969 | 1961 | 1990 | 1967 | 1974 | 1987 | 1962 | 1973 | 1987 |
| Lowest Mean Max. Temperature (F) | 41.0 | 44.8 | 52.7 | 57.1 | 64.6 | 70.9 | 76.1 | 79.3 | 71.8 | 62.2 | 46.9 | 41.7 | 63.4 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1962 | 1980 | 1983 | 1968 | 1986 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 41.2 | 44.6 | 47.8 | 51.3 | 56.9 | 63.4 | 68.6 | 69.2 | 63.7 | 55.4 | 46.8 | 41.5 | 54.2 |
| Highest Mean Temperature (F) | 46.2 | 50.5 | 51.9 | 56.2 | 60.4 | 67.0 | 72.9 | 74.3 | 68.2 | 59.8 | 50.0 | 45.5 | 55.6 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1989 | 1987 | 1986 | 1985 | 1977 | 1974 | 1988 | 1976 | 1973 | 1987 |
| Lowest Mean Temperature (F) | 34.4 | 35.9 | 44.2 | 46.1 | 54.2 | 59.4 | 64.6 | 65.8 | 59.8 | 51.9 | 40.6 | 35.3 | 52.5 |
| Year Lowest Occurred | 1963 | 1989 | 1975 | 1975 | 1962 | 1976 | 1963 | 1969 | 1961 | 1972 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 33.9 | 35.8 | 37.7 | 39.7 | 44.5 | 50.3 | 53.5 | 54.3 | 49.3 | 43.8 | 39.3 | 34.8 | 43.1 |
| Highest Mean Min. Temperature (F) | 39.0 | 41.4 | 42.8 | 43.8 | 49.4 | 54.8 | 56.7 | 59.2 | 55.6 | 50.8 | 42.8 | 39.5 | 45.2 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1989 | 1980 | 1969 | 1985 | 1977 | 1979 | 1979 | 1987 | 1981 | 1979 |
| Lowest Mean Min. Temperature (F) | 25.5 | 26.9 | 33.6 | 35.1 | 41.5 | 45.7 | 50.5 | 50.3 | 44.8 | 39.4 | 33.1 | 27.5 | 41.6 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1975 | 1976 | 1976 | 1963 | 1970 | 1961 | 1974 | 1978 | 1990 | 1971 |
| Mean Precipitation (in.) | 5.03 | 3.71 | 3.63 | 2.24 | 1.49 | 0.84 | 0.39 | 0.66 | 1.14 | 2.36 | 5.67 | 5.57 | 32.73 |
| Highest Precipitation (in.) | 11.29 | 9.75 | 6.99 | 5.28 | 3.74 | 2.03 | 2.98 | 3.30 | 3.70 | 5.55 | 15.91 | 14.07 | 47.36 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1963 | 1963 | 1988 | 1987 | 1976 | 1986 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.58 | 1.02 | 0.47 | 0.59 | 0.27 | 0.13 | 0.00 | 0.00 | 0.00 | 0.06 | 1.09 | 0.84 | 21.71 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1982 | 1974 | 1988 | 1988 | 1987 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 738. | 571. | 533. | 411. | 251. | 88. | 22. | 23. | 100. | 300. | 546. | 729. | 4312. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 40. | 134. | 153. | 61. | 0. | 0. | 0. | 388. |