| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.3 | 57.4 | 57.9 | 59.2 | 61.3 | 63.6 | 65.5 | 66.6 | 67.5 | 65.5 | 60.7 | 56.8 | 61.5 |
| Highest Mean Max. Temperature (F) | 60.8 | 61.1 | 63.5 | 64.1 | 65.0 | 67.6 | 68.6 | 70.9 | 73.6 | 68.4 | 65.0 | 60.4 | 63.5 |
| Year Highest Occurred | 1986 | 1987 | 1978 | 1987 | 1987 | 1990 | 1989 | 1968 | 1979 | 1990 | 1989 | 1976 | 1987 |
| Lowest Mean Max. Temperature (F) | 53.2 | 52.6 | 54.9 | 54.0 | 57.5 | 58.3 | 61.3 | 62.0 | 63.6 | 61.6 | 56.1 | 52.8 | 59.7 |
| Year Lowest Occurred | 1972 | 1969 | 1964 | 1967 | 1965 | 1970 | 1970 | 1973 | 1962 | 1971 | 1973 | 1971 | 1965 |
| Mean Temperature (F) | 47.6 | 49.2 | 49.9 | 50.8 | 53.5 | 56.1 | 57.6 | 58.6 | 58.5 | 55.7 | 51.4 | 48.2 | 53.1 |
| Highest Mean Temperature (F) | 51.7 | 53.8 | 55.8 | 54.3 | 56.2 | 58.8 | 59.8 | 62.1 | 63.1 | 59.0 | 54.7 | 52.4 | 55.2 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1987 | 1986 | 1983 | 1968 | 1979 | 1965 | 1967 | 1969 | 1983 |
| Lowest Mean Temperature (F) | 44.5 | 44.8 | 46.1 | 46.6 | 50.3 | 52.4 | 54.7 | 55.2 | 56.1 | 52.5 | 46.8 | 42.5 | 51.1 |
| Year Lowest Occurred | 1976 | 1989 | 1976 | 1967 | 1964 | 1970 | 1970 | 1973 | 1965 | 1971 | 1985 | 1990 | 1975 |
| Mean Min. Temperature (F) | 38.9 | 41.0 | 41.9 | 42.3 | 45.6 | 48.5 | 49.6 | 50.5 | 49.4 | 45.9 | 42.0 | 39.5 | 44.6 |
| Highest Mean Min. Temperature (F) | 44.8 | 47.3 | 48.0 | 45.7 | 47.5 | 51.3 | 52.4 | 53.2 | 52.7 | 49.8 | 47.2 | 45.7 | 47.3 |
| Year Highest Occurred | 1970 | 1963 | 1978 | 1990 | 1983 | 1969 | 1983 | 1968 | 1983 | 1965 | 1970 | 1969 | 1983 |
| Lowest Mean Min. Temperature (F) | 33.2 | 36.4 | 36.5 | 38.9 | 42.7 | 45.8 | 47.8 | 48.4 | 46.3 | 40.5 | 36.2 | 30.3 | 42.3 |
| Year Lowest Occurred | 1976 | 1990 | 1976 | 1975 | 1964 | 1976 | 1962 | 1973 | 1964 | 1974 | 1990 | 1990 | 1975 |
| Mean Precipitation (in.) | 7.59 | 5.83 | 5.79 | 2.87 | 0.88 | 0.28 | 0.14 | 0.39 | 0.75 | 2.72 | 6.80 | 6.89 | 40.93 |
| Highest Precipitation (in.) | 18.34 | 14.08 | 15.51 | 7.65 | 7.24 | 1.39 | 1.57 | 3.15 | 3.38 | 7.31 | 16.49 | 15.76 | 83.34 |
| Year Highest Occurred | 1970 | 1979 | 1983 | 1963 | 1990 | 1967 | 1974 | 1983 | 1978 | 1962 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.78 | 0.34 | 0.58 | 0.34 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.13 | 21.23 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1985 | 1982 | 1986 | 1989 | 1988 | 1988 | 1978 | 1990 | 1989 | 1976 |
| Heating Degree Days (F) | 539. | 442. | 468. | 426. | 357. | 267. | 229. | 201. | 198. | 288. | 408. | 521. | 4344. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |