| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.5 | 43.4 | 45.2 | 50.7 | 59.1 | 67.2 | 74.7 | 74.7 | 69.0 | 58.8 | 45.5 | 41.3 | 55.9 |
| Highest Mean Max. Temperature (F) | 48.4 | 51.3 | 52.2 | 59.8 | 65.8 | 72.8 | 80.2 | 83.4 | 78.6 | 70.7 | 56.3 | 50.7 | 58.5 |
| Year Highest Occurred | 1961 | 1988 | 1965 | 1987 | 1969 | 1987 | 1972 | 1967 | 1974 | 1987 | 1976 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 33.5 | 35.1 | 39.3 | 41.8 | 52.2 | 60.4 | 66.2 | 68.5 | 60.2 | 50.9 | 37.0 | 34.5 | 53.4 |
| Year Lowest Occurred | 1969 | 1969 | 1971 | 1967 | 1962 | 1980 | 1983 | 1976 | 1986 | 1984 | 1973 | 1971 | 1983 |
| Mean Temperature (F) | 36.1 | 37.8 | 38.5 | 42.3 | 49.2 | 56.6 | 63.2 | 63.8 | 59.1 | 51.2 | 40.3 | 36.3 | 47.9 |
| Highest Mean Temperature (F) | 42.6 | 44.4 | 44.8 | 49.9 | 55.6 | 61.1 | 68.2 | 71.7 | 67.8 | 61.4 | 49.9 | 44.6 | 50.2 |
| Year Highest Occurred | 1981 | 1963 | 1978 | 1987 | 1969 | 1987 | 1972 | 1967 | 1974 | 1987 | 1976 | 1989 | 1987 |
| Lowest Mean Temperature (F) | 29.0 | 30.9 | 34.0 | 34.6 | 43.7 | 51.0 | 56.7 | 59.9 | 52.1 | 44.8 | 32.6 | 29.9 | 46.0 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1962 | 1980 | 1983 | 1989 | 1986 | 1984 | 1985 | 1971 | 1971 |
| Mean Min. Temperature (F) | 30.6 | 32.0 | 31.8 | 33.7 | 39.2 | 45.9 | 51.7 | 52.9 | 49.2 | 43.6 | 35.0 | 31.3 | 39.7 |
| Highest Mean Min. Temperature (F) | 37.0 | 38.9 | 37.5 | 40.8 | 45.4 | 50.2 | 56.4 | 59.9 | 57.0 | 52.0 | 43.5 | 39.0 | 41.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1985 | 1987 |
| Lowest Mean Min. Temperature (F) | 24.5 | 24.8 | 28.1 | 27.4 | 35.2 | 41.6 | 46.2 | 49.5 | 43.9 | 38.6 | 27.5 | 24.7 | 37.5 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1967 | 1962 | 1980 | 1963 | 1989 | 1986 | 1984 | 1985 | 1972 | 1964 |
| Mean Precipitation (in.) | 5.60 | 4.07 | 3.91 | 2.19 | 1.53 | 0.86 | 0.35 | 0.77 | 1.24 | 2.98 | 6.28 | 5.90 | 35.68 |
| Highest Precipitation (in.) | 19.03 | 10.34 | 8.89 | 7.54 | 7.26 | 2.80 | 1.81 | 4.23 | 4.26 | 9.77 | 24.09 | 20.03 | 58.45 |
| Year Highest Occurred | 1970 | 1961 | 1961 | 1963 | 1963 | 1978 | 1983 | 1976 | 1977 | 1962 | 1973 | 1964 | 1973 |
| Lowest Precipitation (in.) | 0.18 | 0.28 | 0.26 | 0.71 | 0.11 | 0.18 | 0.00 | 0.00 | 0.00 | 0.01 | 0.74 | 0.49 | 14.82 |
| Year Lowest Occurred | 1984 | 1988 | 1965 | 1968 | 1982 | 1968 | 1988 | 1987 | 1974 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 896. | 762. | 822. | 681. | 490. | 263. | 131. | 121. | 227. | 442. | 741. | 890. | 6466. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 11. | 75. | 84. | 50. | 15. | 0. | 0. | 235. |