| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.3 | 44.3 | 48.4 | 55.6 | 64.9 | 73.9 | 83.0 | 82.6 | 74.8 | 63.5 | 47.9 | 40.5 | 60.0 |
| Highest Mean Max. Temperature (F) | 48.5 | 51.5 | 56.6 | 65.0 | 72.2 | 80.4 | 88.4 | 90.1 | 82.1 | 73.5 | 57.5 | 47.6 | 62.6 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1987 | 1966 | 1986 | 1988 | 1986 | 1974 | 1988 | 1976 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 36.0 | 36.1 | 42.6 | 44.0 | 53.6 | 66.5 | 76.3 | 73.2 | 67.0 | 55.7 | 40.8 | 34.9 | 57.1 |
| Year Lowest Occurred | 1974 | 1989 | 1977 | 1967 | 1977 | 1964 | 1987 | 1976 | 1986 | 1984 | 1985 | 1971 | 1982 |
| Mean Temperature (F) | 31.1 | 34.8 | 37.8 | 43.3 | 51.3 | 59.4 | 66.9 | 66.5 | 59.4 | 50.1 | 38.2 | 31.6 | 47.5 |
| Highest Mean Temperature (F) | 38.9 | 42.4 | 44.4 | 50.9 | 56.3 | 65.0 | 71.3 | 72.3 | 64.7 | 57.9 | 45.1 | 36.8 | 49.9 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1973 | 1986 | 1988 | 1986 | 1975 | 1987 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 26.1 | 26.3 | 33.2 | 34.3 | 43.3 | 53.8 | 61.8 | 60.0 | 53.1 | 43.5 | 30.9 | 24.6 | 45.4 |
| Year Lowest Occurred | 1974 | 1989 | 1975 | 1967 | 1977 | 1980 | 1987 | 1976 | 1985 | 1969 | 1985 | 1990 | 1982 |
| Mean Min. Temperature (F) | 21.8 | 25.2 | 27.2 | 31.0 | 37.7 | 44.8 | 50.7 | 50.5 | 44.1 | 36.6 | 28.4 | 22.6 | 35.1 |
| Highest Mean Min. Temperature (F) | 29.3 | 33.2 | 33.5 | 37.0 | 41.5 | 49.9 | 54.1 | 56.0 | 49.0 | 43.0 | 33.4 | 28.2 | 37.3 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1990 | 1987 | 1977 | 1988 | 1977 | 1975 | 1987 | 1962 | 1962 | 1986 |
| Lowest Mean Min. Temperature (F) | 16.1 | 16.4 | 23.5 | 24.3 | 33.0 | 40.0 | 46.0 | 46.7 | 38.4 | 30.8 | 20.9 | 13.5 | 32.9 |
| Year Lowest Occurred | 1974 | 1989 | 1976 | 1975 | 1977 | 1980 | 1965 | 1976 | 1971 | 1971 | 1985 | 1990 | 1971 |
| Mean Precipitation (in.) | 1.65 | 1.56 | 1.67 | 1.02 | 1.30 | 1.03 | 0.44 | 0.56 | 0.50 | 1.33 | 1.79 | 1.93 | 14.78 |
| Highest Precipitation (in.) | 5.21 | 6.20 | 4.55 | 3.36 | 3.15 | 3.14 | 4.70 | 3.16 | 1.88 | 8.30 | 6.49 | 6.15 | 23.45 |
| Year Highest Occurred | 1983 | 1983 | 1989 | 1978 | 1989 | 1964 | 1987 | 1976 | 1985 | 1962 | 1966 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.07 | 0.10 | 0.03 | 0.02 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.37 | 0.23 | 8.13 |
| Year Lowest Occurred | 1985 | 1965 | 1965 | 1985 | 1976 | 1973 | 1989 | 1988 | 1974 | 1988 | 1980 | 1976 | 1976 |
| Heating Degree Days (F) | 1051. | 846. | 843. | 651. | 425. | 198. | 53. | 79. | 205. | 468. | 804. | 1035. | 6658. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 30. | 112. | 126. | 37. | 7. | 0. | 0. | 312. |