| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.9 | 62.0 | 64.4 | 68.6 | 73.2 | 78.1 | 81.6 | 81.5 | 80.3 | 75.1 | 64.0 | 56.7 | 70.2 |
| Highest Mean Max. Temperature (F) | 61.9 | 67.2 | 70.5 | 75.3 | 78.9 | 85.8 | 86.7 | 86.1 | 87.5 | 81.2 | 70.5 | 62.6 | 71.9 |
| Year Highest Occurred | 1976 | 1988 | 1988 | 1966 | 1978 | 1981 | 1961 | 1969 | 1984 | 1965 | 1980 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 50.9 | 56.1 | 59.3 | 58.1 | 67.2 | 72.0 | 77.4 | 77.9 | 71.3 | 68.5 | 60.1 | 50.5 | 68.2 |
| Year Lowest Occurred | 1985 | 1969 | 1982 | 1967 | 1977 | 1982 | 1987 | 1986 | 1986 | 1975 | 1985 | 1985 | 1975 |
| Mean Temperature (F) | 48.8 | 52.9 | 54.6 | 57.3 | 61.1 | 65.4 | 67.7 | 67.9 | 66.9 | 62.9 | 55.0 | 49.1 | 59.1 |
| Highest Mean Temperature (F) | 52.6 | 58.1 | 58.8 | 61.0 | 65.4 | 70.8 | 71.3 | 70.3 | 71.9 | 66.7 | 58.8 | 54.2 | 60.4 |
| Year Highest Occurred | 1978 | 1963 | 1972 | 1987 | 1978 | 1981 | 1988 | 1983 | 1984 | 1965 | 1967 | 1969 | 1981 |
| Lowest Mean Temperature (F) | 44.0 | 47.5 | 51.1 | 49.9 | 56.9 | 61.3 | 64.5 | 65.2 | 61.8 | 58.8 | 50.6 | 44.0 | 57.6 |
| Year Lowest Occurred | 1985 | 1989 | 1985 | 1967 | 1977 | 1965 | 1962 | 1973 | 1986 | 1975 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 40.6 | 43.7 | 44.7 | 45.9 | 48.9 | 52.6 | 53.7 | 54.2 | 53.6 | 50.7 | 46.0 | 41.4 | 48.0 |
| Highest Mean Min. Temperature (F) | 46.1 | 49.5 | 49.7 | 49.6 | 51.9 | 55.8 | 56.6 | 57.9 | 56.7 | 53.8 | 49.2 | 47.1 | 49.7 |
| Year Highest Occurred | 1970 | 1963 | 1978 | 1990 | 1978 | 1981 | 1984 | 1990 | 1968 | 1979 | 1967 | 1969 | 1983 |
| Lowest Mean Min. Temperature (F) | 37.1 | 38.7 | 38.9 | 41.7 | 45.1 | 49.2 | 50.3 | 51.3 | 49.7 | 47.2 | 41.1 | 35.4 | 46.1 |
| Year Lowest Occurred | 1985 | 1989 | 1977 | 1967 | 1976 | 1980 | 1962 | 1970 | 1965 | 1971 | 1985 | 1990 | 1964 |
| Mean Precipitation (in.) | 7.89 | 5.82 | 4.95 | 1.96 | 0.32 | 0.21 | 0.07 | 0.09 | 0.37 | 2.15 | 5.60 | 6.31 | 35.74 |
| Highest Precipitation (in.) | 20.28 | 18.93 | 17.28 | 6.59 | 2.94 | 2.33 | 1.56 | 1.02 | 2.68 | 10.04 | 18.69 | 14.35 | 70.42 |
| Year Highest Occurred | 1967 | 1986 | 1983 | 1982 | 1990 | 1967 | 1974 | 1976 | 1977 | 1962 | 1973 | 1970 | 1983 |
| Lowest Precipitation (in.) | 0.35 | 0.16 | 0.00 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.09 | 0.00 | 13.11 |
| Year Lowest Occurred | 1976 | 1971 | 1988 | 1990 | 1985 | 1990 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1985 |
| Heating Degree Days (F) | 502. | 339. | 322. | 241. | 141. | 64. | 19. | 9. | 52. | 99. | 300. | 493. | 2581. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 10. | 20. | 76. | 102. | 99. | 109. | 33. | 0. | 0. | 449. |