| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.7 | 49.1 | 53.0 | 57.6 | 63.9 | 69.1 | 73.4 | 74.3 | 68.8 | 60.1 | 50.5 | 45.0 | 59.1 |
| Highest Mean Max. Temperature (F) | 51.7 | 54.8 | 57.9 | 61.9 | 68.3 | 73.8 | 80.6 | 81.3 | 75.5 | 65.8 | 54.8 | 49.6 | 61.3 |
| Year Highest Occurred | 1981 | 1977 | 1981 | 1989 | 1969 | 1969 | 1985 | 1967 | 1974 | 1987 | 1981 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 35.4 | 41.6 | 48.6 | 53.9 | 60.1 | 64.1 | 69.5 | 68.6 | 64.6 | 56.8 | 39.5 | 39.1 | 57.1 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1974 | 1971 | 1986 | 1976 | 1972 | 1971 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 38.5 | 41.8 | 44.9 | 48.8 | 54.2 | 59.1 | 62.3 | 62.9 | 58.4 | 51.1 | 44.0 | 39.3 | 50.4 |
| Highest Mean Temperature (F) | 45.5 | 46.7 | 49.4 | 52.2 | 57.5 | 63.0 | 66.2 | 66.2 | 62.3 | 53.6 | 48.4 | 44.4 | 52.4 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1980 | 1983 | 1969 | 1985 | 1967 | 1974 | 1988 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 30.1 | 34.1 | 41.1 | 45.7 | 51.2 | 56.1 | 59.8 | 59.6 | 54.4 | 48.0 | 32.9 | 33.5 | 48.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1965 | 1976 | 1966 | 1969 | 1970 | 1972 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 32.2 | 34.4 | 36.7 | 40.1 | 44.5 | 49.2 | 51.1 | 51.4 | 47.9 | 42.1 | 37.4 | 33.6 | 41.7 |
| Highest Mean Min. Temperature (F) | 39.4 | 39.0 | 41.7 | 43.7 | 47.9 | 52.1 | 54.2 | 54.2 | 51.6 | 46.8 | 42.9 | 40.0 | 43.7 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1983 | 1969 | 1990 | 1990 | 1979 | 1988 | 1987 | 1966 | 1983 |
| Lowest Mean Min. Temperature (F) | 24.8 | 26.6 | 31.8 | 36.7 | 40.8 | 45.8 | 48.5 | 48.4 | 43.7 | 37.9 | 26.3 | 27.9 | 39.5 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1975 | 1965 | 1965 | 1969 | 1970 | 1970 | 1972 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 5.90 | 4.41 | 4.08 | 3.80 | 2.82 | 2.46 | 1.75 | 1.81 | 3.10 | 4.11 | 6.32 | 5.95 | 46.51 |
| Highest Precipitation (in.) | 15.80 | 10.81 | 7.66 | 7.64 | 5.89 | 7.44 | 4.21 | 4.76 | 7.97 | 9.90 | 16.50 | 10.10 | 69.20 |
| Year Highest Occurred | 1971 | 1961 | 1989 | 1981 | 1984 | 1990 | 1966 | 1962 | 1978 | 1985 | 1990 | 1979 | 1990 |
| Lowest Precipitation (in.) | 0.88 | 1.53 | 1.24 | 2.04 | 1.18 | 0.40 | 0.00 | 0.07 | 0.14 | 0.25 | 2.30 | 1.13 | 29.03 |
| Year Lowest Occurred | 1985 | 1962 | 1970 | 1967 | 1972 | 1965 | 1985 | 1986 | 1989 | 1987 | 1979 | 1985 | 1987 |
| Heating Degree Days (F) | 822. | 650. | 623. | 486. | 335. | 183. | 100. | 95. | 205. | 431. | 630. | 797. | 5357. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 16. | 29. | 7. | 0. | 0. | 0. | 58. |