| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.8 | 56.3 | 57.3 | 59.6 | 63.3 | 66.5 | 67.7 | 67.6 | 68.6 | 64.4 | 58.5 | 54.8 | 61.6 |
| Highest Mean Max. Temperature (F) | 60.0 | 61.0 | 61.8 | 64.5 | 67.6 | 71.1 | 72.1 | 72.3 | 72.5 | 68.5 | 62.9 | 58.0 | 63.9 |
| Year Highest Occurred | 1981 | 1970 | 1986 | 1987 | 1987 | 1985 | 1984 | 1987 | 1970 | 1974 | 1967 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 49.3 | 51.3 | 53.6 | 55.2 | 59.5 | 62.4 | 64.6 | 63.8 | 64.0 | 61.2 | 53.4 | 50.2 | 59.3 |
| Year Lowest Occurred | 1969 | 1989 | 1966 | 1967 | 1964 | 1971 | 1971 | 1973 | 1962 | 1971 | 1985 | 1972 | 1971 |
| Mean Temperature (F) | 47.8 | 49.1 | 49.6 | 51.2 | 54.7 | 58.0 | 59.5 | 59.8 | 59.9 | 56.3 | 51.6 | 48.0 | 53.8 |
| Highest Mean Temperature (F) | 52.8 | 53.1 | 54.1 | 55.4 | 59.3 | 60.9 | 62.5 | 63.0 | 64.1 | 59.2 | 55.1 | 51.2 | 56.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1987 | 1985 | 1985 | 1987 | 1979 | 1987 | 1967 | 1980 | 1987 |
| Lowest Mean Temperature (F) | 43.6 | 44.1 | 46.5 | 47.4 | 51.1 | 55.1 | 56.8 | 56.9 | 57.0 | 53.0 | 46.1 | 43.0 | 51.9 |
| Year Lowest Occurred | 1969 | 1989 | 1976 | 1967 | 1964 | 1971 | 1965 | 1973 | 1965 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 40.9 | 41.9 | 41.9 | 42.8 | 46.1 | 49.5 | 51.2 | 52.1 | 51.1 | 48.2 | 44.7 | 41.2 | 46.0 |
| Highest Mean Min. Temperature (F) | 45.5 | 46.8 | 46.4 | 47.4 | 50.9 | 53.1 | 54.1 | 55.3 | 55.7 | 52.0 | 47.6 | 45.2 | 48.5 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1987 | 1988 | 1983 | 1983 | 1979 | 1988 | 1965 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 35.3 | 36.9 | 38.5 | 38.2 | 42.6 | 45.9 | 48.3 | 47.9 | 47.2 | 44.8 | 38.8 | 35.2 | 43.9 |
| Year Lowest Occurred | 1963 | 1989 | 1976 | 1970 | 1965 | 1962 | 1962 | 1963 | 1964 | 1971 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 10.92 | 9.00 | 9.32 | 5.20 | 3.64 | 1.55 | 0.53 | 1.27 | 2.09 | 5.66 | 11.49 | 11.94 | 72.61 |
| Highest Precipitation (in.) | 23.60 | 20.05 | 17.91 | 17.43 | 14.15 | 4.73 | 2.62 | 6.97 | 7.38 | 12.37 | 26.01 | 23.30 | 101.15 |
| Year Highest Occurred | 1970 | 1986 | 1961 | 1963 | 1963 | 1971 | 1964 | 1968 | 1977 | 1981 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.50 | 2.82 | 1.59 | 1.15 | 0.01 | 0.16 | 0.00 | 0.00 | 0.02 | 0.16 | 0.80 | 2.10 | 43.11 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1968 | 1982 | 1967 | 1980 | 1988 | 1965 | 1978 | 1989 | 1976 | 1989 |
| Heating Degree Days (F) | 533. | 445. | 477. | 414. | 319. | 210. | 175. | 166. | 161. | 270. | 402. | 527. | 4099. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 8. | 0. | 0. | 0. | 8. |