| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 48.9 | 54.2 | 58.9 | 63.9 | 70.4 | 77.3 | 83.5 | 84.3 | 79.4 | 67.5 | 54.3 | 48.0 | 65.9 |
| Highest Mean Max. Temperature (F) | 52.6 | 61.0 | 65.1 | 69.6 | 75.2 | 81.8 | 88.8 | 92.2 | 90.8 | 75.5 | 58.4 | 52.6 | 68.5 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1987 | 1969 | 1970 | 1985 | 1967 | 1974 | 1987 | 1976 | 1977 | 1974 |
| Lowest Mean Max. Temperature (F) | 41.3 | 46.6 | 54.3 | 57.2 | 64.4 | 71.2 | 76.7 | 78.9 | 73.1 | 61.8 | 47.3 | 40.9 | 63.4 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1962 | 1980 | 1983 | 1989 | 1978 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 42.4 | 46.0 | 48.9 | 52.2 | 57.4 | 63.3 | 67.4 | 68.1 | 64.0 | 56.2 | 47.7 | 42.4 | 54.7 |
| Highest Mean Temperature (F) | 46.5 | 51.8 | 54.1 | 56.9 | 60.9 | 66.8 | 70.9 | 72.1 | 70.7 | 60.7 | 51.2 | 47.3 | 56.4 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1988 | 1969 | 1986 | 1972 | 1977 | 1974 | 1988 | 1976 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 35.9 | 38.1 | 45.4 | 47.3 | 53.6 | 59.7 | 64.1 | 65.1 | 59.9 | 53.6 | 41.2 | 35.2 | 52.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1962 | 1980 | 1963 | 1964 | 1961 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 35.9 | 37.8 | 38.9 | 40.4 | 44.3 | 49.1 | 51.3 | 51.9 | 48.6 | 44.8 | 41.0 | 36.7 | 43.4 |
| Highest Mean Min. Temperature (F) | 41.6 | 43.4 | 43.0 | 46.1 | 47.5 | 53.3 | 54.5 | 57.1 | 52.7 | 49.5 | 44.6 | 42.0 | 45.5 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1988 | 1988 | 1969 | 1972 | 1977 | 1979 | 1988 | 1987 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 27.8 | 29.5 | 34.3 | 36.4 | 40.3 | 46.0 | 47.9 | 48.0 | 44.2 | 40.2 | 34.3 | 29.5 | 41.3 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1970 | 1964 | 1962 | 1962 | 1969 | 1964 | 1974 | 1978 | 1990 | 1964 |
| Mean Precipitation (in.) | 8.62 | 6.53 | 6.50 | 3.52 | 1.98 | 1.00 | 0.30 | 0.73 | 1.50 | 3.67 | 8.86 | 9.72 | 52.93 |
| Highest Precipitation (in.) | 17.58 | 14.31 | 12.48 | 8.34 | 4.30 | 2.74 | 1.46 | 3.32 | 5.04 | 12.58 | 21.38 | 21.62 | 71.42 |
| Year Highest Occurred | 1970 | 1961 | 1983 | 1982 | 1977 | 1981 | 1987 | 1968 | 1971 | 1975 | 1984 | 1964 | 1975 |
| Lowest Precipitation (in.) | 0.59 | 0.74 | 0.88 | 1.13 | 0.07 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 1.55 | 1.51 | 34.94 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1966 | 1982 | 1987 | 1973 | 1986 | 1990 | 1978 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 701. | 532. | 499. | 384. | 236. | 88. | 26. | 22. | 95. | 273. | 519. | 701. | 4076. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 37. | 101. | 118. | 65. | 0. | 0. | 0. | 321. |