| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.3 | 50.9 | 55.4 | 59.8 | 66.2 | 73.3 | 80.3 | 80.9 | 75.5 | 64.7 | 52.6 | 46.3 | 62.7 |
| Highest Mean Max. Temperature (F) | 52.2 | 56.6 | 60.9 | 66.7 | 70.9 | 78.5 | 87.4 | 88.0 | 83.2 | 73.2 | 56.6 | 50.0 | 65.1 |
| Year Highest Occurred | 1984 | 1968 | 1986 | 1987 | 1987 | 1987 | 1985 | 1986 | 1974 | 1987 | 1989 | 1966 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.6 | 44.5 | 50.1 | 53.9 | 59.6 | 66.9 | 74.1 | 75.9 | 69.8 | 60.3 | 45.7 | 40.4 | 60.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1963 | 1962 | 1980 | 1963 | 1968 | 1978 | 1969 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.5 | 42.8 | 46.0 | 49.4 | 54.7 | 61.1 | 66.1 | 66.7 | 62.2 | 53.9 | 45.4 | 40.1 | 52.3 |
| Highest Mean Temperature (F) | 43.3 | 48.1 | 51.2 | 54.7 | 58.3 | 65.0 | 71.1 | 71.2 | 66.4 | 59.0 | 48.8 | 44.0 | 53.9 |
| Year Highest Occurred | 1975 | 1963 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1974 | 1987 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 31.6 | 35.5 | 42.1 | 45.0 | 51.2 | 57.3 | 62.4 | 63.4 | 58.6 | 50.1 | 38.4 | 33.3 | 50.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1963 | 1975 | 1970 | 1971 | 1985 | 1985 | 1971 |
| Mean Min. Temperature (F) | 32.7 | 34.6 | 36.5 | 38.9 | 43.1 | 48.7 | 51.8 | 52.4 | 48.8 | 43.1 | 38.1 | 33.8 | 41.9 |
| Highest Mean Min. Temperature (F) | 37.9 | 39.6 | 42.1 | 42.9 | 46.1 | 52.9 | 54.8 | 56.0 | 52.6 | 48.4 | 42.5 | 38.4 | 43.8 |
| Year Highest Occurred | 1978 | 1983 | 1983 | 1989 | 1983 | 1969 | 1985 | 1990 | 1990 | 1988 | 1965 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.6 | 26.4 | 33.1 | 35.4 | 40.7 | 45.0 | 49.8 | 48.5 | 44.2 | 39.1 | 31.1 | 25.9 | 40.1 |
| Year Lowest Occurred | 1979 | 1989 | 1969 | 1967 | 1977 | 1976 | 1976 | 1980 | 1970 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.45 | 5.05 | 4.53 | 2.63 | 1.85 | 1.19 | 0.39 | 0.74 | 1.31 | 2.94 | 6.92 | 7.65 | 41.65 |
| Highest Precipitation (in.) | 12.87 | 11.94 | 9.10 | 6.15 | 3.36 | 3.09 | 2.30 | 4.57 | 3.61 | 6.83 | 17.09 | 18.37 | 54.21 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1963 | 1985 | 1987 | 1968 | 1986 | 1979 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.36 | 1.31 | 0.65 | 0.54 | 0.47 | 0.09 | 0.00 | 0.00 | 0.00 | 0.13 | 1.63 | 1.18 | 28.21 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1985 | 1982 | 1976 | 1977 | 1988 | 1975 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 791. | 622. | 589. | 468. | 319. | 135. | 43. | 49. | 114. | 344. | 588. | 772. | 4834. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 18. | 78. | 101. | 30. | 0. | 0. | 0. | 227. |