| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.9 | 62.3 | 64.9 | 69.3 | 74.7 | 79.6 | 82.1 | 81.9 | 81.4 | 76.5 | 64.6 | 56.9 | 70.9 |
| Highest Mean Max. Temperature (F) | 62.6 | 66.3 | 70.3 | 76.1 | 81.0 | 88.3 | 87.9 | 87.3 | 89.3 | 82.5 | 69.4 | 62.6 | 72.6 |
| Year Highest Occurred | 1976 | 1985 | 1988 | 1987 | 1984 | 1981 | 1961 | 1969 | 1984 | 1965 | 1986 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 53.5 | 56.2 | 61.4 | 58.2 | 69.5 | 72.2 | 77.8 | 77.2 | 74.7 | 71.7 | 60.0 | 51.3 | 69.3 |
| Year Lowest Occurred | 1969 | 1969 | 1982 | 1967 | 1977 | 1982 | 1962 | 1980 | 1986 | 1972 | 1972 | 1972 | 1982 |
| Mean Temperature (F) | 47.1 | 51.5 | 53.4 | 56.2 | 61.2 | 65.8 | 67.9 | 67.8 | 66.8 | 62.4 | 53.5 | 47.5 | 58.4 |
| Highest Mean Temperature (F) | 52.2 | 56.2 | 57.9 | 60.9 | 66.3 | 72.8 | 71.1 | 71.1 | 71.8 | 65.3 | 56.7 | 52.1 | 60.1 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1985 | 1984 | 1981 | 1988 | 1983 | 1984 | 1986 | 1967 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 43.0 | 46.4 | 50.4 | 47.9 | 57.2 | 61.3 | 64.3 | 65.0 | 62.5 | 59.5 | 50.4 | 42.3 | 57.0 |
| Year Lowest Occurred | 1963 | 1989 | 1962 | 1967 | 1977 | 1965 | 1962 | 1980 | 1965 | 1971 | 1985 | 1990 | 1963 |
| Mean Min. Temperature (F) | 37.2 | 40.6 | 41.8 | 43.1 | 47.7 | 51.9 | 53.7 | 53.8 | 52.2 | 48.3 | 42.3 | 38.1 | 45.9 |
| Highest Mean Min. Temperature (F) | 44.4 | 46.1 | 48.1 | 48.8 | 51.6 | 57.3 | 57.1 | 57.8 | 56.0 | 52.8 | 47.2 | 44.9 | 48.7 |
| Year Highest Occurred | 1986 | 1968 | 1978 | 1990 | 1984 | 1981 | 1972 | 1983 | 1983 | 1986 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 31.3 | 35.3 | 36.5 | 37.6 | 43.5 | 48.5 | 50.5 | 51.2 | 48.0 | 44.2 | 37.6 | 29.9 | 44.1 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1967 | 1964 | 1980 | 1965 | 1962 | 1965 | 1971 | 1978 | 1990 | 1964 |
| Mean Precipitation (in.) | 5.38 | 3.90 | 3.66 | 1.57 | 0.32 | 0.15 | 0.05 | 0.13 | 0.43 | 1.66 | 3.94 | 3.93 | 25.12 |
| Highest Precipitation (in.) | 13.77 | 15.29 | 11.12 | 5.66 | 3.27 | 1.95 | 1.05 | 1.30 | 2.31 | 10.37 | 10.51 | 8.40 | 51.29 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1963 | 1990 | 1967 | 1974 | 1976 | 1989 | 1962 | 1973 | 1970 | 1983 |
| Lowest Precipitation (in.) | 0.34 | 0.19 | 0.13 | 0.07 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.00 | 10.46 |
| Year Lowest Occurred | 1976 | 1964 | 1988 | 1985 | 1987 | 1990 | 1990 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 555. | 378. | 360. | 276. | 145. | 65. | 18. | 10. | 45. | 104. | 345. | 543. | 2844. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 28. | 89. | 108. | 97. | 99. | 23. | 0. | 0. | 456. |