| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.3 | 50.7 | 54.3 | 59.1 | 64.5 | 71.1 | 78.1 | 79.3 | 74.0 | 64.0 | 51.6 | 44.7 | 61.4 |
| Highest Mean Max. Temperature (F) | 52.1 | 58.6 | 60.7 | 65.7 | 68.2 | 78.6 | 86.0 | 87.0 | 83.1 | 72.6 | 57.7 | 49.8 | 63.6 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1983 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1961 |
| Lowest Mean Max. Temperature (F) | 37.0 | 43.4 | 48.5 | 52.6 | 53.6 | 65.5 | 70.9 | 74.1 | 66.7 | 57.3 | 41.0 | 38.6 | 58.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1967 | 1965 | 1971 | 1983 | 1989 | 1986 | 1984 | 1985 | 1990 | 1971 |
| Mean Temperature (F) | 38.2 | 41.7 | 44.4 | 48.0 | 52.8 | 58.8 | 63.3 | 63.7 | 58.8 | 51.3 | 43.7 | 38.5 | 50.3 |
| Highest Mean Temperature (F) | 42.6 | 47.4 | 48.9 | 52.0 | 56.3 | 63.8 | 68.0 | 68.7 | 64.6 | 55.6 | 47.1 | 42.5 | 51.6 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1989 | 1969 | 1961 | 1974 | 1974 | 1963 | 1988 | 1976 | 1977 | 1961 |
| Lowest Mean Temperature (F) | 31.9 | 34.4 | 40.5 | 43.1 | 46.0 | 55.3 | 60.0 | 60.5 | 54.6 | 48.8 | 35.6 | 32.1 | 48.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1967 | 1965 | 1976 | 1986 | 1980 | 1985 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 31.0 | 32.7 | 34.4 | 36.9 | 41.0 | 46.5 | 48.5 | 47.9 | 43.6 | 38.5 | 35.8 | 32.2 | 39.1 |
| Highest Mean Min. Temperature (F) | 36.5 | 37.4 | 38.4 | 39.7 | 44.4 | 52.1 | 57.8 | 55.7 | 48.3 | 44.0 | 39.1 | 37.3 | 40.9 |
| Year Highest Occurred | 1978 | 1983 | 1984 | 1989 | 1969 | 1969 | 1974 | 1974 | 1963 | 1988 | 1983 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 22.4 | 25.3 | 30.5 | 33.5 | 36.4 | 42.2 | 44.2 | 43.2 | 38.3 | 33.5 | 29.1 | 25.2 | 36.6 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1982 | 1964 | 1976 | 1962 | 1980 | 1965 | 1974 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 8.51 | 6.67 | 6.89 | 5.19 | 4.09 | 2.74 | 0.88 | 1.45 | 2.65 | 4.88 | 9.39 | 9.25 | 62.59 |
| Highest Precipitation (in.) | 15.82 | 15.83 | 12.30 | 8.61 | 9.94 | 8.39 | 4.33 | 5.35 | 6.34 | 9.59 | 19.43 | 20.65 | 81.67 |
| Year Highest Occurred | 1965 | 1961 | 1989 | 1972 | 1977 | 1984 | 1983 | 1968 | 1986 | 1990 | 1973 | 1964 | 1984 |
| Lowest Precipitation (in.) | 0.67 | 2.27 | 1.54 | 1.66 | 0.90 | 0.70 | 0.00 | 0.00 | 0.00 | 0.10 | 2.64 | 2.61 | 45.02 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1965 | 1984 | 1988 | 1975 | 1987 | 1976 | 1989 | 1987 |
| Heating Degree Days (F) | 831. | 652. | 639. | 510. | 378. | 193. | 88. | 90. | 201. | 425. | 639. | 822. | 5468. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 35. | 50. | 15. | 0. | 0. | 0. | 107. |