| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 52.9 | 56.9 | 60.7 | 68.0 | 77.7 | 86.6 | 94.8 | 93.4 | 86.3 | 74.9 | 59.8 | 52.8 | 72.1 |
| Highest Mean Max. Temperature (F) | 58.5 | 65.8 | 67.7 | 80.7 | 83.4 | 93.0 | 100.5 | 99.3 | 93.3 | 84.9 | 69.6 | 60.7 | 74.9 |
| Year Highest Occurred | 1984 | 1988 | 1988 | 1985 | 1976 | 1985 | 1985 | 1967 | 1975 | 1988 | 1986 | 1989 | 1985 |
| Lowest Mean Max. Temperature (F) | 46.4 | 47.0 | 54.9 | 52.9 | 68.4 | 79.5 | 88.0 | 85.0 | 79.9 | 68.2 | 52.0 | 44.5 | 69.5 |
| Year Lowest Occurred | 1969 | 1969 | 1983 | 1967 | 1977 | 1980 | 1983 | 1976 | 1985 | 1984 | 1973 | 1972 | 1983 |
| Mean Temperature (F) | 45.8 | 49.0 | 51.7 | 57.7 | 66.1 | 74.6 | 81.4 | 80.0 | 73.9 | 64.6 | 52.5 | 46.0 | 61.9 |
| Highest Mean Temperature (F) | 50.2 | 55.1 | 57.1 | 66.0 | 71.3 | 79.6 | 85.3 | 85.7 | 79.5 | 71.9 | 58.8 | 50.9 | 64.0 |
| Year Highest Occurred | 1984 | 1988 | 1986 | 1985 | 1973 | 1985 | 1985 | 1967 | 1975 | 1988 | 1986 | 1989 | 1988 |
| Lowest Mean Temperature (F) | 40.7 | 41.4 | 47.3 | 45.8 | 58.0 | 67.4 | 75.3 | 73.1 | 68.7 | 59.0 | 47.3 | 39.4 | 59.8 |
| Year Lowest Occurred | 1982 | 1969 | 1975 | 1967 | 1977 | 1980 | 1983 | 1976 | 1985 | 1984 | 1973 | 1972 | 1982 |
| Mean Min. Temperature (F) | 38.6 | 41.0 | 42.7 | 47.3 | 54.5 | 62.5 | 67.9 | 66.5 | 61.4 | 54.2 | 45.1 | 39.3 | 51.8 |
| Highest Mean Min. Temperature (F) | 43.5 | 46.9 | 47.3 | 53.0 | 59.2 | 66.3 | 71.4 | 72.0 | 65.8 | 59.4 | 50.0 | 43.5 | 53.3 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1966 | 1973 | 1977 | 1988 | 1967 | 1974 | 1987 | 1967 | 1962 | 1988 |
| Lowest Mean Min. Temperature (F) | 34.4 | 35.8 | 38.7 | 38.7 | 47.6 | 55.2 | 62.5 | 61.2 | 57.3 | 49.7 | 40.7 | 34.2 | 49.8 |
| Year Lowest Occurred | 1982 | 1969 | 1977 | 1967 | 1977 | 1980 | 1983 | 1976 | 1986 | 1984 | 1985 | 1972 | 1982 |
| Mean Precipitation (in.) | 11.17 | 8.68 | 9.06 | 4.20 | 2.06 | 0.71 | 0.26 | 0.57 | 1.51 | 3.22 | 9.63 | 9.73 | 60.80 |
| Highest Precipitation (in.) | 34.13 | 24.09 | 34.55 | 13.99 | 12.76 | 2.31 | 4.03 | 5.47 | 8.89 | 10.92 | 27.62 | 30.49 | 130.48 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1982 | 1974 | 1976 | 1977 | 1962 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.58 | 0.10 | 0.34 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.35 | 0.00 | 27.99 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1973 | 1982 | 1986 | 1986 | 1988 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 595. | 448. | 412. | 275. | 85. | 8. | 0. | 0. | 12. | 118. | 380. | 589. | 2922. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 56. | 119. | 296. | 508. | 465. | 279. | 106. | 5. | 0. | 1834. |