| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.7 | 51.5 | 56.8 | 63.4 | 72.5 | 82.0 | 90.5 | 89.6 | 82.3 | 71.0 | 52.6 | 42.7 | 66.6 |
| Highest Mean Max. Temperature (F) | 49.5 | 59.6 | 64.1 | 73.9 | 79.0 | 87.8 | 96.1 | 96.2 | 89.6 | 81.3 | 60.4 | 48.9 | 69.6 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1987 | 1987 | 1988 | 1967 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 36.6 | 43.2 | 51.2 | 51.3 | 61.7 | 74.6 | 84.1 | 79.9 | 72.5 | 62.7 | 46.1 | 31.8 | 64.2 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1967 | 1983 |
| Mean Temperature (F) | 32.8 | 38.4 | 42.6 | 47.2 | 54.7 | 62.8 | 69.1 | 67.9 | 60.2 | 51.2 | 40.1 | 33.1 | 50.0 |
| Highest Mean Temperature (F) | 39.2 | 45.0 | 48.1 | 52.4 | 59.7 | 67.4 | 72.6 | 72.6 | 65.4 | 57.8 | 45.2 | 37.7 | 51.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1973 | 1977 | 1988 | 1967 | 1967 | 1988 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 26.8 | 32.0 | 39.3 | 40.1 | 48.8 | 58.2 | 64.4 | 63.7 | 54.2 | 45.7 | 34.0 | 21.5 | 48.6 |
| Year Lowest Occurred | 1968 | 1989 | 1967 | 1967 | 1977 | 1980 | 1983 | 1976 | 1978 | 1969 | 1985 | 1967 | 1989 |
| Mean Min. Temperature (F) | 21.9 | 25.2 | 28.3 | 31.1 | 36.9 | 43.6 | 47.6 | 46.1 | 38.1 | 31.4 | 27.6 | 23.4 | 33.4 |
| Highest Mean Min. Temperature (F) | 28.9 | 33.2 | 34.1 | 36.2 | 40.7 | 49.4 | 50.2 | 51.5 | 42.8 | 38.1 | 34.1 | 30.2 | 35.5 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1965 | 1973 | 1977 | 1980 | 1961 | 1976 | 1979 | 1973 | 1973 | 1983 |
| Lowest Mean Min. Temperature (F) | 14.3 | 15.6 | 22.7 | 25.8 | 31.8 | 38.1 | 42.4 | 39.8 | 32.7 | 25.4 | 17.6 | 11.1 | 30.1 |
| Year Lowest Occurred | 1962 | 1989 | 1988 | 1970 | 1990 | 1990 | 1989 | 1969 | 1970 | 1969 | 1969 | 1967 | 1989 |
| Mean Precipitation (in.) | 3.74 | 2.58 | 2.15 | 1.11 | 0.72 | 0.64 | 0.33 | 0.61 | 0.81 | 1.40 | 3.41 | 4.13 | 21.63 |
| Highest Precipitation (in.) | 10.44 | 8.16 | 6.90 | 3.92 | 2.64 | 3.22 | 1.18 | 3.61 | 2.47 | 5.78 | 9.56 | 11.90 | 35.07 |
| Year Highest Occurred | 1970 | 1986 | 1975 | 1974 | 1990 | 1967 | 1985 | 1983 | 1972 | 1962 | 1984 | 1964 | 1970 |
| Lowest Precipitation (in.) | 0.17 | 0.21 | 0.01 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.55 | 0.21 | 11.98 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1968 | 1982 | 1983 | 1989 | 1986 | 1988 | 1978 | 1969 | 1989 | 1976 |
| Heating Degree Days (F) | 998. | 745. | 694. | 534. | 324. | 114. | 20. | 35. | 175. | 428. | 747. | 989. | 5803. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 48. | 148. | 125. | 31. | 0. | 0. | 0. | 357. |