| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.6 | 61.8 | 66.0 | 73.7 | 82.1 | 89.9 | 94.6 | 93.2 | 89.1 | 79.9 | 64.9 | 55.4 | 75.5 |
| Highest Mean Max. Temperature (F) | 60.9 | 69.0 | 73.7 | 81.1 | 88.0 | 94.6 | 99.1 | 98.7 | 94.7 | 87.0 | 71.3 | 63.5 | 77.3 |
| Year Highest Occurred | 1976 | 1988 | 1972 | 1987 | 1973 | 1961 | 1961 | 1967 | 1979 | 1978 | 1969 | 1989 | 1988 |
| Lowest Mean Max. Temperature (F) | 50.4 | 53.3 | 60.8 | 59.6 | 73.0 | 82.1 | 89.4 | 86.7 | 82.2 | 73.8 | 58.9 | 48.1 | 72.6 |
| Year Lowest Occurred | 1969 | 1969 | 1983 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1972 | 1972 | 1982 |
| Mean Temperature (F) | 45.8 | 50.7 | 53.6 | 59.2 | 66.8 | 73.9 | 77.6 | 76.1 | 72.5 | 64.5 | 53.3 | 45.8 | 61.7 |
| Highest Mean Temperature (F) | 50.6 | 56.8 | 59.1 | 65.1 | 71.9 | 78.4 | 80.9 | 81.9 | 76.6 | 69.5 | 57.8 | 50.3 | 62.9 |
| Year Highest Occurred | 1978 | 1963 | 1972 | 1977 | 1976 | 1977 | 1984 | 1967 | 1967 | 1987 | 1967 | 1977 | 1976 |
| Lowest Mean Temperature (F) | 42.5 | 45.5 | 50.3 | 49.7 | 60.5 | 66.4 | 72.7 | 72.5 | 66.8 | 61.1 | 49.4 | 40.1 | 59.5 |
| Year Lowest Occurred | 1963 | 1969 | 1985 | 1967 | 1977 | 1980 | 1987 | 1980 | 1986 | 1984 | 1972 | 1972 | 1982 |
| Mean Min. Temperature (F) | 35.9 | 39.5 | 41.1 | 44.7 | 51.4 | 57.9 | 60.6 | 59.0 | 55.9 | 49.1 | 41.7 | 36.2 | 47.8 |
| Highest Mean Min. Temperature (F) | 44.0 | 47.2 | 46.9 | 49.6 | 56.2 | 62.3 | 65.0 | 65.0 | 60.1 | 54.0 | 46.0 | 42.1 | 49.5 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1977 | 1976 | 1977 | 1984 | 1967 | 1967 | 1987 | 1967 | 1977 | 1978 |
| Lowest Mean Min. Temperature (F) | 29.6 | 33.8 | 36.4 | 39.7 | 46.7 | 50.6 | 55.5 | 55.2 | 51.3 | 46.0 | 36.8 | 27.3 | 45.3 |
| Year Lowest Occurred | 1963 | 1990 | 1985 | 1967 | 1985 | 1980 | 1990 | 1980 | 1986 | 1971 | 1990 | 1990 | 1990 |
| Mean Precipitation (in.) | 3.46 | 2.80 | 2.38 | 1.03 | 0.37 | 0.27 | 0.05 | 0.15 | 0.36 | 0.99 | 2.91 | 2.72 | 17.49 |
| Highest Precipitation (in.) | 8.34 | 8.55 | 7.80 | 4.04 | 2.23 | 1.81 | 1.00 | 0.95 | 2.97 | 3.89 | 7.31 | 9.07 | 43.02 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1963 | 1990 | 1982 | 1974 | 1968 | 1989 | 1982 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.22 | 0.01 | 0.09 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.00 | 5.18 |
| Year Lowest Occurred | 1975 | 1964 | 1988 | 1973 | 1985 | 1990 | 1990 | 1989 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 595. | 400. | 353. | 214. | 66. | 8. | 0. | 0. | 9. | 83. | 351. | 595. | 2674. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 40. | 122. | 275. | 391. | 344. | 234. | 67. | 0. | 0. | 1473. |