| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.6 | 51.8 | 56.0 | 60.8 | 67.2 | 74.2 | 81.5 | 82.1 | 75.8 | 65.0 | 52.5 | 46.2 | 63.3 |
| Highest Mean Max. Temperature (F) | 51.4 | 58.4 | 61.8 | 67.7 | 71.6 | 79.5 | 87.7 | 91.0 | 84.8 | 74.5 | 56.7 | 51.3 | 65.8 |
| Year Highest Occurred | 1961 | 1963 | 1965 | 1987 | 1973 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 39.3 | 45.3 | 50.7 | 55.5 | 61.2 | 67.6 | 72.9 | 76.5 | 68.9 | 58.6 | 44.2 | 40.5 | 61.4 |
| Year Lowest Occurred | 1969 | 1979 | 1971 | 1975 | 1962 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.8 | 43.3 | 46.2 | 49.9 | 55.2 | 61.2 | 66.0 | 66.3 | 61.5 | 53.7 | 45.3 | 40.0 | 52.4 |
| Highest Mean Temperature (F) | 43.7 | 49.5 | 50.8 | 54.5 | 58.4 | 64.8 | 69.5 | 70.7 | 66.3 | 57.7 | 48.3 | 44.1 | 53.8 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1963 | 1988 | 1980 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 33.6 | 36.1 | 42.1 | 45.3 | 52.0 | 57.4 | 62.7 | 63.5 | 57.4 | 50.5 | 38.3 | 33.7 | 50.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1983 | 1980 | 1985 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 32.9 | 34.8 | 36.4 | 38.9 | 43.1 | 48.2 | 50.5 | 50.5 | 47.1 | 42.4 | 38.1 | 33.8 | 41.4 |
| Highest Mean Min. Temperature (F) | 37.8 | 40.6 | 40.3 | 42.2 | 46.2 | 52.3 | 52.7 | 53.7 | 52.6 | 46.6 | 41.2 | 38.6 | 42.8 |
| Year Highest Occurred | 1978 | 1963 | 1983 | 1989 | 1987 | 1969 | 1990 | 1977 | 1963 | 1988 | 1965 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 26.4 | 26.6 | 33.3 | 35.0 | 40.6 | 44.1 | 48.1 | 46.4 | 44.0 | 38.4 | 32.3 | 26.8 | 39.5 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1982 | 1976 | 1962 | 1980 | 1965 | 1974 | 1978 | 1990 | 1985 |
| Mean Precipitation (in.) | 8.86 | 7.17 | 7.20 | 5.11 | 3.72 | 2.50 | 0.78 | 1.29 | 2.71 | 4.99 | 10.15 | 9.67 | 64.15 |
| Highest Precipitation (in.) | 15.64 | 16.79 | 13.64 | 8.86 | 8.03 | 8.21 | 3.35 | 6.15 | 8.45 | 10.02 | 21.59 | 20.71 | 83.73 |
| Year Highest Occurred | 1964 | 1961 | 1989 | 1979 | 1977 | 1984 | 1987 | 1968 | 1986 | 1990 | 1973 | 1981 | 1984 |
| Lowest Precipitation (in.) | 0.90 | 2.71 | 1.49 | 1.69 | 0.64 | 0.75 | 0.00 | 0.00 | 0.00 | 0.16 | 2.89 | 2.02 | 47.99 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1982 | 1965 | 1973 | 1988 | 1975 | 1987 | 1976 | 1976 | 1976 |
| Heating Degree Days (F) | 781. | 608. | 583. | 453. | 304. | 133. | 44. | 47. | 134. | 350. | 591. | 775. | 4803. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 19. | 75. | 87. | 29. | 0. | 0. | 0. | 210. |