| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.5 | 46.3 | 55.0 | 65.3 | 74.9 | 85.5 | 88.7 | 85.4 | 78.0 | 67.3 | 52.7 | 42.6 | 65.2 |
| Highest Mean Max. Temperature (F) | 50.7 | 53.9 | 65.6 | 74.0 | 80.9 | 90.8 | 92.4 | 90.8 | 82.4 | 73.7 | 59.2 | 52.5 | 68.6 |
| Year Highest Occurred | 1986 | 1972 | 1972 | 1989 | 1984 | 1990 | 1980 | 1962 | 1979 | 1965 | 1981 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 33.0 | 36.6 | 48.1 | 58.2 | 70.2 | 80.0 | 85.8 | 82.4 | 73.5 | 57.0 | 42.9 | 35.5 | 62.9 |
| Year Lowest Occurred | 1979 | 1964 | 1973 | 1973 | 1979 | 1965 | 1986 | 1968 | 1964 | 1984 | 1972 | 1978 | 1975 |
| Mean Temperature (F) | 27.3 | 33.1 | 40.1 | 48.1 | 57.4 | 67.2 | 72.5 | 69.9 | 62.5 | 51.4 | 38.8 | 29.4 | 49.8 |
| Highest Mean Temperature (F) | 35.2 | 38.6 | 46.6 | 54.3 | 62.2 | 71.7 | 75.2 | 72.7 | 65.7 | 56.3 | 43.1 | 36.8 | 51.6 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1989 | 1984 | 1990 | 1963 | 1969 | 1990 | 1963 | 1965 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 20.6 | 22.7 | 34.9 | 42.4 | 54.1 | 63.1 | 70.2 | 66.1 | 59.4 | 45.7 | 33.8 | 23.3 | 47.6 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1973 | 1983 | 1965 | 1986 | 1974 | 1985 | 1984 | 1972 | 1990 | 1975 |
| Mean Min. Temperature (F) | 14.0 | 19.9 | 25.1 | 30.9 | 39.8 | 48.9 | 56.1 | 54.3 | 47.0 | 35.5 | 24.8 | 16.3 | 34.4 |
| Highest Mean Min. Temperature (F) | 24.7 | 26.7 | 29.1 | 36.2 | 43.4 | 52.6 | 58.9 | 58.1 | 51.0 | 41.1 | 31.4 | 22.0 | 36.7 |
| Year Highest Occurred | 1980 | 1962 | 1978 | 1990 | 1984 | 1990 | 1967 | 1970 | 1963 | 1963 | 1978 | 1984 | 1978 |
| Lowest Mean Min. Temperature (F) | 6.8 | 8.7 | 20.6 | 25.6 | 35.2 | 43.1 | 52.5 | 48.8 | 42.9 | 29.6 | 18.1 | 8.0 | 32.3 |
| Year Lowest Occurred | 1963 | 1964 | 1969 | 1970 | 1981 | 1983 | 1974 | 1974 | 1968 | 1970 | 1976 | 1990 | 1975 |
| Mean Precipitation (in.) | 0.55 | 0.46 | 0.60 | 0.54 | 0.68 | 0.57 | 1.45 | 1.75 | 1.27 | 1.04 | 0.66 | 0.53 | 10.10 |
| Highest Precipitation (in.) | 1.88 | 1.35 | 1.77 | 2.54 | 2.07 | 2.33 | 3.71 | 4.64 | 2.79 | 3.60 | 2.74 | 1.79 | 14.47 |
| Year Highest Occurred | 1974 | 1975 | 1973 | 1985 | 1973 | 1965 | 1977 | 1972 | 1972 | 1974 | 1978 | 1967 | 1988 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.42 | 0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 5.92 |
| Year Lowest Occurred | 1968 | 1984 | 1987 | 1989 | 1989 | 1982 | 1972 | 1962 | 1968 | 1975 | 1989 | 1988 | 1989 |
| Heating Degree Days (F) | 1169. | 893. | 772. | 507. | 243. | 33. | 0. | 6. | 103. | 422. | 786. | 1104. | 6038. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 99. | 233. | 158. | 28. | 0. | 0. | 0. | 525. |