| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.2 | 51.9 | 57.9 | 65.1 | 73.8 | 84.4 | 92.0 | 89.4 | 81.2 | 70.0 | 55.3 | 45.7 | 67.6 |
| Highest Mean Max. Temperature (F) | 51.2 | 59.6 | 66.0 | 72.8 | 80.9 | 90.5 | 95.6 | 94.7 | 86.3 | 79.2 | 61.9 | 57.6 | 69.9 |
| Year Highest Occurred | 1961 | 1963 | 1972 | 1962 | 1966 | 1974 | 1988 | 1967 | 1974 | 1988 | 1976 | 1981 | 1966 |
| Lowest Mean Max. Temperature (F) | 37.4 | 40.6 | 50.5 | 55.5 | 64.1 | 76.9 | 87.1 | 81.7 | 73.4 | 61.0 | 46.3 | 36.0 | 65.3 |
| Year Lowest Occurred | 1972 | 1989 | 1985 | 1975 | 1977 | 1963 | 1987 | 1981 | 1986 | 1984 | 1985 | 1990 | 1985 |
| Mean Temperature (F) | 30.8 | 36.9 | 42.1 | 48.4 | 56.8 | 66.1 | 72.6 | 69.5 | 61.0 | 50.1 | 39.4 | 31.1 | 50.4 |
| Highest Mean Temperature (F) | 36.9 | 44.4 | 47.6 | 55.2 | 61.9 | 71.9 | 76.2 | 73.9 | 67.0 | 57.6 | 43.5 | 40.0 | 52.7 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1966 | 1988 | 1988 | 1988 | 1990 | 1988 | 1981 | 1981 | 1988 |
| Lowest Mean Temperature (F) | 25.8 | 27.2 | 36.8 | 41.6 | 50.3 | 62.1 | 67.8 | 64.0 | 54.5 | 44.5 | 33.1 | 21.3 | 48.6 |
| Year Lowest Occurred | 1972 | 1989 | 1985 | 1975 | 1977 | 1963 | 1983 | 1976 | 1986 | 1969 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 17.4 | 21.7 | 26.2 | 31.6 | 39.9 | 47.8 | 53.1 | 49.5 | 40.7 | 30.2 | 23.5 | 16.5 | 33.2 |
| Highest Mean Min. Temperature (F) | 24.8 | 29.2 | 33.8 | 41.0 | 44.7 | 56.1 | 56.7 | 54.9 | 49.5 | 35.9 | 29.3 | 25.7 | 36.2 |
| Year Highest Occurred | 1980 | 1963 | 1989 | 1990 | 1987 | 1988 | 1988 | 1988 | 1990 | 1988 | 1988 | 1983 | 1987 |
| Lowest Mean Min. Temperature (F) | 9.8 | 13.8 | 21.7 | 26.1 | 36.2 | 43.2 | 48.5 | 45.0 | 34.4 | 25.0 | 17.7 | 6.5 | 31.5 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1979 | 1978 | 1980 | 1983 | 1962 | 1965 | 1971 | 1969 | 1990 | 1976 |
| Mean Precipitation (in.) | 0.90 | 0.73 | 0.67 | 0.43 | 0.68 | 0.57 | 0.34 | 0.43 | 0.51 | 0.43 | 0.69 | 0.83 | 7.21 |
| Highest Precipitation (in.) | 4.64 | 2.80 | 1.89 | 1.19 | 2.87 | 1.86 | 1.65 | 2.29 | 2.71 | 2.08 | 2.20 | 2.61 | 13.13 |
| Year Highest Occurred | 1969 | 1962 | 1985 | 1990 | 1971 | 1989 | 1976 | 1965 | 1982 | 1972 | 1973 | 1969 | 1969 |
| Lowest Precipitation (in.) | 0.03 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 3.68 |
| Year Lowest Occurred | 1989 | 1967 | 1990 | 1989 | 1982 | 1981 | 1987 | 1988 | 1987 | 1990 | 1976 | 1989 | 1966 |
| Heating Degree Days (F) | 1060. | 787. | 710. | 498. | 265. | 69. | 0. | 32. | 167. | 462. | 768. | 1051. | 5869. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 11. | 102. | 240. | 171. | 47. | 0. | 0. | 0. | 571. |