| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 36.4 | 44.2 | 52.9 | 61.4 | 71.0 | 80.9 | 90.2 | 88.1 | 77.0 | 64.6 | 48.7 | 37.7 | 62.8 |
| Highest Mean Max. Temperature (F) | 43.5 | 52.6 | 59.9 | 72.2 | 77.2 | 89.1 | 94.4 | 94.5 | 86.2 | 75.2 | 53.0 | 44.4 | 65.8 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1987 | 1966 | 1961 | 1989 | 1967 | 1990 | 1988 | 1965 | 1973 | 1987 |
| Lowest Mean Max. Temperature (F) | 25.3 | 32.1 | 46.5 | 53.9 | 65.1 | 74.0 | 84.6 | 80.8 | 68.8 | 57.5 | 35.9 | 21.4 | 57.9 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1964 | 1982 | 1968 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.0 | 35.9 | 42.4 | 49.1 | 57.5 | 66.5 | 74.0 | 72.5 | 62.6 | 51.8 | 39.9 | 30.1 | 50.9 |
| Highest Mean Temperature (F) | 37.0 | 43.3 | 48.7 | 56.0 | 62.2 | 72.9 | 78.5 | 78.6 | 70.9 | 59.9 | 44.3 | 38.4 | 52.9 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1987 | 1987 | 1961 | 1967 | 1971 | 1963 | 1988 | 1965 | 1973 | 1973 |
| Lowest Mean Temperature (F) | 16.2 | 23.2 | 36.0 | 43.8 | 53.7 | 61.7 | 69.4 | 67.2 | 56.2 | 45.9 | 27.7 | 12.6 | 45.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1970 | 1977 | 1984 | 1983 | 1980 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 21.6 | 27.5 | 31.9 | 36.7 | 43.9 | 52.1 | 57.7 | 56.8 | 48.2 | 39.0 | 31.1 | 22.5 | 39.1 |
| Highest Mean Min. Temperature (F) | 30.7 | 34.0 | 37.4 | 41.0 | 48.7 | 56.6 | 62.7 | 63.1 | 57.3 | 46.5 | 36.1 | 32.4 | 41.5 |
| Year Highest Occurred | 1970 | 1983 | 1978 | 1990 | 1963 | 1961 | 1967 | 1971 | 1963 | 1963 | 1970 | 1973 | 1973 |
| Lowest Mean Min. Temperature (F) | 7.1 | 14.2 | 25.4 | 32.4 | 40.5 | 47.3 | 53.2 | 50.7 | 43.5 | 34.3 | 19.4 | 3.7 | 33.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1968 | 1982 | 1976 | 1981 | 1980 | 1961 | 1969 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.45 | 1.07 | 1.29 | 1.24 | 1.08 | 0.81 | 0.35 | 0.43 | 0.80 | 0.75 | 1.48 | 1.36 | 12.11 |
| Highest Precipitation (in.) | 3.87 | 3.70 | 3.46 | 2.81 | 4.07 | 2.00 | 1.62 | 2.37 | 2.93 | 1.99 | 3.36 | 4.23 | 18.77 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1965 | 1990 | 1969 | 1982 | 1968 | 1986 | 1975 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.20 | 0.19 | 0.21 | 0.19 | 0.10 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.09 | 6.64 |
| Year Lowest Occurred | 1985 | 1964 | 1963 | 1977 | 1974 | 1966 | 1968 | 1980 | 1987 | 1988 | 1976 | 1976 | 1966 |
| Heating Degree Days (F) | 1116. | 815. | 701. | 477. | 242. | 75. | 6. | 20. | 160. | 414. | 753. | 1082. | 5861. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 9. | 120. | 285. | 252. | 88. | 0. | 0. | 0. | 754. |