| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 38.8 | 44.8 | 49.7 | 56.5 | 64.4 | 73.9 | 82.5 | 81.7 | 72.5 | 62.1 | 47.5 | 39.8 | 59.5 |
| Highest Mean Max. Temperature (F) | 46.5 | 51.3 | 56.0 | 65.0 | 69.6 | 81.6 | 87.5 | 89.9 | 81.1 | 71.0 | 53.0 | 47.3 | 61.2 |
| Year Highest Occurred | 1986 | 1963 | 1968 | 1987 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1969 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 28.6 | 31.8 | 43.1 | 48.3 | 57.2 | 65.4 | 76.3 | 74.4 | 59.5 | 54.9 | 35.3 | 32.3 | 56.8 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1967 | 1977 | 1980 | 1986 | 1968 | 1986 | 1984 | 1985 | 1990 | 1985 |
| Mean Temperature (F) | 29.8 | 34.5 | 38.0 | 42.9 | 49.6 | 57.3 | 63.4 | 62.8 | 55.0 | 47.3 | 37.3 | 30.5 | 45.7 |
| Highest Mean Temperature (F) | 37.8 | 39.6 | 44.0 | 49.6 | 52.7 | 62.1 | 68.0 | 68.6 | 61.2 | 55.4 | 41.7 | 36.9 | 47.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1987 | 1986 | 1985 | 1986 | 1967 | 1988 | 1981 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 17.1 | 22.4 | 32.2 | 36.1 | 45.1 | 52.7 | 59.5 | 58.7 | 48.4 | 42.4 | 26.5 | 21.8 | 43.4 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1970 | 1977 | 1971 | 1986 | 1975 | 1986 | 1971 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 20.7 | 24.1 | 26.2 | 29.3 | 34.8 | 40.6 | 44.2 | 43.9 | 37.5 | 32.5 | 27.1 | 21.2 | 31.8 |
| Highest Mean Min. Temperature (F) | 29.0 | 29.4 | 32.3 | 34.3 | 39.5 | 45.4 | 48.4 | 49.7 | 42.6 | 39.7 | 31.8 | 28.0 | 34.9 |
| Year Highest Occurred | 1986 | 1978 | 1986 | 1989 | 1987 | 1982 | 1985 | 1986 | 1990 | 1988 | 1981 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 5.6 | 12.9 | 18.9 | 22.8 | 29.6 | 35.9 | 38.8 | 37.4 | 30.4 | 28.0 | 17.7 | 11.2 | 28.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1970 | 1964 | 1976 | 1963 | 1969 | 1965 | 1971 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 1.54 | 1.03 | 1.45 | 1.33 | 1.58 | 1.26 | 0.62 | 0.86 | 0.84 | 1.18 | 1.74 | 1.68 | 15.11 |
| Highest Precipitation (in.) | 4.19 | 3.41 | 4.88 | 3.65 | 4.25 | 3.64 | 2.04 | 3.78 | 2.15 | 3.55 | 3.89 | 5.69 | 30.70 |
| Year Highest Occurred | 1984 | 1984 | 1984 | 1988 | 1981 | 1982 | 1987 | 1989 | 1986 | 1975 | 1966 | 1964 | 1984 |
| Lowest Precipitation (in.) | 0.15 | 0.19 | 0.33 | 0.12 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | 0.17 | 7.90 |
| Year Lowest Occurred | 1961 | 1964 | 1969 | 1973 | 1976 | 1973 | 1988 | 1981 | 1975 | 1978 | 1974 | 1965 | 1974 |
| Heating Degree Days (F) | 1091. | 854. | 837. | 663. | 477. | 243. | 94. | 133. | 316. | 549. | 831. | 1070. | 7158. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 45. | 64. | 16. | 0. | 0. | 0. | 137. |