| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.5 | 56.9 | 63.4 | 72.3 | 80.6 | 88.7 | 90.5 | 87.5 | 81.2 | 72.9 | 60.5 | 53.2 | 71.6 |
| Highest Mean Max. Temperature (F) | 60.3 | 64.9 | 73.3 | 77.6 | 86.6 | 95.9 | 97.1 | 92.3 | 86.4 | 78.9 | 68.5 | 60.3 | 73.6 |
| Year Highest Occurred | 1969 | 1976 | 1972 | 1972 | 1974 | 1990 | 1980 | 1964 | 1983 | 1963 | 1973 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 44.6 | 43.8 | 55.5 | 63.3 | 74.8 | 83.6 | 85.3 | 82.3 | 77.5 | 64.4 | 50.7 | 45.5 | 68.7 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1983 | 1987 | 1987 | 1975 | 1984 | 1978 | 1984 | 1972 | 1967 | 1987 |
| Mean Temperature (F) | 36.2 | 40.5 | 46.0 | 54.2 | 62.9 | 71.1 | 74.8 | 72.5 | 66.1 | 56.5 | 44.8 | 37.9 | 55.3 |
| Highest Mean Temperature (F) | 44.7 | 46.7 | 52.5 | 58.7 | 67.5 | 77.6 | 79.3 | 76.2 | 70.9 | 60.9 | 50.4 | 45.6 | 57.1 |
| Year Highest Occurred | 1969 | 1976 | 1972 | 1981 | 1974 | 1990 | 1966 | 1964 | 1983 | 1963 | 1973 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 29.4 | 30.3 | 40.0 | 47.3 | 58.5 | 67.2 | 71.1 | 69.7 | 63.3 | 50.8 | 38.0 | 33.3 | 53.3 |
| Year Lowest Occurred | 1966 | 1964 | 1969 | 1983 | 1983 | 1979 | 1975 | 1971 | 1984 | 1976 | 1972 | 1967 | 1987 |
| Mean Min. Temperature (F) | 20.9 | 24.0 | 28.7 | 36.1 | 45.1 | 53.5 | 59.1 | 57.5 | 50.9 | 40.1 | 29.1 | 22.5 | 39.0 |
| Highest Mean Min. Temperature (F) | 29.1 | 28.5 | 33.8 | 40.2 | 49.3 | 59.3 | 63.4 | 61.4 | 55.4 | 44.9 | 35.8 | 31.4 | 40.5 |
| Year Highest Occurred | 1969 | 1976 | 1986 | 1981 | 1989 | 1990 | 1966 | 1969 | 1983 | 1983 | 1978 | 1977 | 1981 |
| Lowest Mean Min. Temperature (F) | 13.0 | 16.8 | 23.0 | 30.1 | 39.3 | 49.2 | 55.9 | 53.8 | 46.8 | 34.2 | 22.1 | 15.0 | 36.3 |
| Year Lowest Occurred | 1963 | 1964 | 1965 | 1973 | 1975 | 1963 | 1987 | 1975 | 1968 | 1975 | 1975 | 1989 | 1975 |
| Mean Precipitation (in.) | 0.38 | 0.44 | 0.45 | 0.60 | 0.89 | 1.52 | 1.83 | 2.18 | 1.91 | 1.05 | 0.55 | 0.43 | 12.23 |
| Highest Precipitation (in.) | 1.38 | 1.77 | 1.30 | 2.66 | 2.70 | 3.98 | 4.53 | 4.42 | 5.53 | 4.25 | 3.42 | 1.96 | 23.62 |
| Year Highest Occurred | 1985 | 1986 | 1968 | 1985 | 1987 | 1979 | 1962 | 1984 | 1982 | 1985 | 1986 | 1984 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.06 | 0.10 | 0.36 | 0.00 | 0.00 | 0.00 | 4.17 |
| Year Lowest Occurred | 1972 | 1966 | 1980 | 1986 | 1974 | 1990 | 1987 | 1983 | 1970 | 1975 | 1989 | 1976 | 1964 |
| Heating Degree Days (F) | 893. | 686. | 589. | 330. | 105. | 11. | 0. | 0. | 49. | 268. | 606. | 840. | 4377. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 40. | 194. | 304. | 237. | 82. | 0. | 0. | 0. | 863. |