| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 29.4 | 35.2 | 42.7 | 55.1 | 66.7 | 75.7 | 85.6 | 84.1 | 74.4 | 63.2 | 43.9 | 31.4 | 57.3 |
| Highest Mean Max. Temperature (F) | 36.6 | 46.7 | 51.3 | 69.2 | 73.0 | 83.8 | 92.4 | 90.6 | 82.9 | 75.7 | 56.4 | 43.2 | 61.5 |
| Year Highest Occurred | 1981 | 1963 | 1968 | 1987 | 1966 | 1988 | 1989 | 1967 | 1990 | 1988 | 1976 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 23.0 | 27.5 | 35.3 | 43.3 | 60.8 | 69.3 | 81.5 | 71.5 | 60.9 | 56.5 | 33.6 | 20.1 | 53.7 |
| Year Lowest Occurred | 1979 | 1985 | 1964 | 1975 | 1977 | 1963 | 1986 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 17.5 | 21.9 | 29.8 | 41.1 | 50.5 | 58.1 | 65.8 | 64.0 | 54.8 | 44.9 | 31.3 | 19.3 | 41.6 |
| Highest Mean Temperature (F) | 24.1 | 36.5 | 38.3 | 49.6 | 54.7 | 63.9 | 71.4 | 69.7 | 61.3 | 53.6 | 35.8 | 28.3 | 44.3 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1987 | 1977 | 1990 | 1971 | 1990 | 1988 | 1981 | 1962 | 1987 |
| Lowest Mean Temperature (F) | 9.9 | 11.8 | 20.4 | 32.5 | 46.7 | 52.3 | 61.9 | 56.1 | 46.2 | 39.6 | 23.8 | 8.8 | 37.1 |
| Year Lowest Occurred | 1984 | 1989 | 1969 | 1975 | 1977 | 1984 | 1983 | 1968 | 1965 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 5.6 | 8.5 | 16.8 | 27.1 | 34.3 | 40.5 | 45.9 | 43.8 | 35.0 | 26.5 | 18.7 | 7.2 | 25.8 |
| Highest Mean Min. Temperature (F) | 12.6 | 26.3 | 25.8 | 32.5 | 39.0 | 47.1 | 55.1 | 50.7 | 42.6 | 33.2 | 23.9 | 17.4 | 29.1 |
| Year Highest Occurred | 1983 | 1963 | 1986 | 1965 | 1963 | 1977 | 1990 | 1961 | 1963 | 1963 | 1972 | 1975 | 1963 |
| Lowest Mean Min. Temperature (F) | -7.1 | -5.8 | 2.9 | 21.1 | 29.1 | 32.9 | 40.6 | 34.9 | 25.1 | 20.9 | 12.5 | -3.3 | 20.4 |
| Year Lowest Occurred | 1989 | 1989 | 1969 | 1984 | 1966 | 1984 | 1966 | 1985 | 1989 | 1966 | 1989 | 1990 | 1985 |
| Mean Precipitation (in.) | 2.36 | 1.68 | 1.27 | 1.10 | 1.18 | 1.05 | 0.66 | 0.63 | 0.77 | 0.81 | 2.01 | 2.34 | 15.86 |
| Highest Precipitation (in.) | 6.20 | 5.24 | 3.61 | 2.39 | 4.60 | 3.66 | 2.80 | 3.11 | 3.04 | 2.37 | 5.83 | 8.73 | 26.79 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1965 | 1962 | 1967 | 1982 | 1968 | 1985 | 1982 | 1988 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.36 | 0.13 | 0.21 | 0.07 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.03 | 8.22 |
| Year Lowest Occurred | 1985 | 1965 | 1977 | 1977 | 1974 | 1974 | 1990 | 1990 | 1987 | 1988 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1473. | 1207. | 1091. | 717. | 450. | 226. | 63. | 122. | 329. | 623. | 1011. | 1417. | 8729. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 19. | 87. | 91. | 23. | 0. | 0. | 0. | 220. |