| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.5 | 51.1 | 56.4 | 61.5 | 68.4 | 74.5 | 80.3 | 81.1 | 75.7 | 64.4 | 52.4 | 45.5 | 63.1 |
| Highest Mean Max. Temperature (F) | 52.2 | 59.1 | 62.5 | 66.7 | 72.7 | 79.8 | 88.0 | 90.2 | 83.8 | 72.9 | 56.7 | 50.0 | 66.1 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1989 | 1987 | 1987 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 36.5 | 44.1 | 51.4 | 57.1 | 61.6 | 67.7 | 74.0 | 74.7 | 70.0 | 59.3 | 42.6 | 39.7 | 61.0 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1963 | 1976 | 1977 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.1 | 43.1 | 46.8 | 50.6 | 56.5 | 62.4 | 67.1 | 67.8 | 62.9 | 53.9 | 45.3 | 39.7 | 52.9 |
| Highest Mean Temperature (F) | 43.8 | 47.7 | 53.1 | 55.5 | 60.7 | 66.7 | 72.5 | 72.8 | 68.2 | 59.5 | 48.8 | 44.4 | 55.6 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1990 | 1987 | 1986 | 1985 | 1967 | 1990 | 1988 | 1989 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 31.0 | 36.1 | 42.9 | 46.3 | 52.0 | 57.2 | 62.1 | 63.8 | 59.0 | 50.9 | 36.6 | 33.8 | 50.7 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1962 | 1971 | 1963 | 1964 | 1961 | 1968 | 1985 | 1985 | 1964 |
| Mean Min. Temperature (F) | 32.7 | 35.0 | 37.1 | 39.6 | 44.7 | 50.3 | 53.8 | 54.4 | 50.0 | 43.3 | 38.1 | 33.8 | 42.7 |
| Highest Mean Min. Temperature (F) | 37.5 | 38.9 | 43.6 | 45.5 | 48.7 | 55.2 | 58.4 | 58.9 | 56.6 | 51.5 | 42.6 | 38.7 | 45.4 |
| Year Highest Occurred | 1990 | 1978 | 1986 | 1990 | 1987 | 1969 | 1990 | 1990 | 1990 | 1988 | 1983 | 1979 | 1990 |
| Lowest Mean Min. Temperature (F) | 25.4 | 28.1 | 32.5 | 34.8 | 40.2 | 45.5 | 49.6 | 50.0 | 44.3 | 39.6 | 30.6 | 26.7 | 40.4 |
| Year Lowest Occurred | 1969 | 1989 | 1965 | 1967 | 1965 | 1965 | 1962 | 1969 | 1965 | 1970 | 1985 | 1985 | 1964 |
| Mean Precipitation (in.) | 6.44 | 4.92 | 4.70 | 2.85 | 2.35 | 1.74 | 0.72 | 1.30 | 2.00 | 3.23 | 6.33 | 7.33 | 43.91 |
| Highest Precipitation (in.) | 12.74 | 9.98 | 10.28 | 4.73 | 5.24 | 4.01 | 3.65 | 4.42 | 5.68 | 7.76 | 14.82 | 12.95 | 57.99 |
| Year Highest Occurred | 1970 | 1983 | 1983 | 1984 | 1984 | 1984 | 1983 | 1968 | 1986 | 1990 | 1973 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.41 | 1.17 | 0.66 | 0.89 | 0.65 | 0.18 | 0.00 | 0.00 | 0.00 | 0.25 | 0.81 | 1.96 | 26.73 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1966 | 1982 | 1987 | 1967 | 1967 | 1965 | 1987 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 803. | 613. | 564. | 432. | 267. | 126. | 44. | 52. | 119. | 344. | 591. | 784. | 4739. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 48. | 109. | 139. | 56. | 0. | 0. | 0. | 352. |