| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.1 | 61.7 | 66.1 | 72.8 | 80.9 | 88.1 | 93.4 | 92.1 | 87.7 | 78.5 | 63.7 | 54.0 | 74.4 |
| Highest Mean Max. Temperature (F) | 62.1 | 67.6 | 72.6 | 80.8 | 88.9 | 94.6 | 99.6 | 97.8 | 94.0 | 83.8 | 70.4 | 62.2 | 77.4 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1987 | 1984 | 1985 | 1988 | 1967 | 1984 | 1988 | 1986 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 48.5 | 54.8 | 61.3 | 60.2 | 72.6 | 81.8 | 89.0 | 86.7 | 80.9 | 72.3 | 58.0 | 47.3 | 70.9 |
| Year Lowest Occurred | 1961 | 1969 | 1973 | 1967 | 1977 | 1965 | 1963 | 1968 | 1986 | 1962 | 1982 | 1963 | 1963 |
| Mean Temperature (F) | 47.1 | 52.9 | 56.1 | 60.8 | 67.2 | 73.0 | 76.9 | 76.2 | 73.0 | 65.8 | 54.9 | 47.1 | 62.6 |
| Highest Mean Temperature (F) | 52.6 | 57.6 | 60.9 | 66.0 | 73.2 | 79.2 | 81.6 | 79.9 | 77.3 | 70.1 | 59.2 | 51.5 | 65.1 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1966 | 1984 | 1981 | 1988 | 1967 | 1979 | 1976 | 1976 | 1981 | 1976 |
| Lowest Mean Temperature (F) | 42.9 | 48.1 | 52.6 | 52.2 | 61.4 | 68.3 | 72.9 | 72.8 | 67.2 | 61.8 | 50.4 | 42.5 | 60.1 |
| Year Lowest Occurred | 1963 | 1989 | 1962 | 1967 | 1961 | 1965 | 1987 | 1968 | 1986 | 1984 | 1985 | 1963 | 1963 |
| Mean Min. Temperature (F) | 40.1 | 44.0 | 46.0 | 48.7 | 53.4 | 57.9 | 60.4 | 60.3 | 58.3 | 53.1 | 46.0 | 40.2 | 50.7 |
| Highest Mean Min. Temperature (F) | 46.3 | 49.1 | 50.9 | 53.1 | 57.4 | 63.8 | 63.5 | 63.6 | 62.0 | 56.6 | 50.8 | 46.5 | 53.1 |
| Year Highest Occurred | 1986 | 1983 | 1978 | 1990 | 1984 | 1981 | 1988 | 1983 | 1979 | 1976 | 1981 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 33.9 | 38.5 | 42.1 | 44.1 | 48.7 | 54.8 | 56.7 | 57.5 | 53.5 | 49.6 | 42.0 | 33.7 | 48.9 |
| Year Lowest Occurred | 1963 | 1989 | 1964 | 1967 | 1961 | 1965 | 1987 | 1986 | 1986 | 1971 | 1985 | 1990 | 1962 |
| Mean Precipitation (in.) | 3.85 | 2.98 | 2.79 | 1.24 | 0.29 | 0.12 | 0.05 | 0.07 | 0.37 | 1.12 | 2.97 | 2.76 | 18.61 |
| Highest Precipitation (in.) | 9.61 | 10.30 | 8.30 | 4.36 | 2.61 | 0.68 | 0.90 | 0.59 | 3.15 | 6.85 | 7.44 | 6.65 | 37.62 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1983 | 1990 | 1967 | 1974 | 1965 | 1989 | 1962 | 1970 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.23 | 0.19 | 0.22 | 0.11 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.22 | 0.00 | 6.67 |
| Year Lowest Occurred | 1984 | 1964 | 1966 | 1985 | 1982 | 1990 | 1990 | 1990 | 1990 | 1976 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 555. | 339. | 281. | 171. | 67. | 9. | 0. | 0. | 10. | 71. | 303. | 555. | 2361. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 45. | 136. | 249. | 369. | 347. | 250. | 95. | 0. | 0. | 1491. |