| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.5 | 50.4 | 54.9 | 59.5 | 66.1 | 73.1 | 80.2 | 81.1 | 75.4 | 64.3 | 52.2 | 45.6 | 62.4 |
| Highest Mean Max. Temperature (F) | 50.2 | 56.5 | 60.2 | 65.8 | 70.2 | 77.8 | 87.1 | 88.9 | 83.6 | 73.4 | 55.6 | 49.9 | 64.9 |
| Year Highest Occurred | 1961 | 1968 | 1986 | 1989 | 1987 | 1987 | 1985 | 1967 | 1974 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.5 | 42.4 | 50.2 | 54.5 | 59.5 | 67.5 | 73.9 | 76.0 | 69.9 | 59.0 | 44.8 | 40.1 | 60.6 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1983 | 1975 | 1978 | 1984 | 1985 | 1985 | 1971 |
| Mean Temperature (F) | 39.3 | 42.8 | 46.0 | 49.3 | 54.6 | 60.9 | 65.6 | 66.2 | 61.6 | 53.0 | 45.1 | 39.8 | 52.0 |
| Highest Mean Temperature (F) | 43.2 | 48.1 | 51.0 | 54.9 | 58.2 | 64.3 | 69.7 | 70.9 | 65.9 | 57.5 | 47.8 | 43.9 | 53.8 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1986 | 1985 | 1967 | 1974 | 1987 | 1965 | 1977 | 1987 |
| Lowest Mean Temperature (F) | 31.6 | 35.2 | 42.4 | 44.8 | 51.0 | 57.0 | 62.0 | 63.2 | 58.6 | 50.2 | 38.2 | 32.8 | 50.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1975 | 1964 | 1971 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.0 | 35.1 | 37.0 | 39.2 | 43.1 | 48.6 | 51.0 | 51.2 | 47.8 | 41.7 | 38.0 | 33.9 | 41.6 |
| Highest Mean Min. Temperature (F) | 37.5 | 39.8 | 42.3 | 43.9 | 46.1 | 53.6 | 52.9 | 53.9 | 51.9 | 46.6 | 41.9 | 38.8 | 43.1 |
| Year Highest Occurred | 1967 | 1978 | 1983 | 1989 | 1987 | 1969 | 1990 | 1990 | 1990 | 1988 | 1983 | 1977 | 1986 |
| Lowest Mean Min. Temperature (F) | 25.7 | 28.0 | 33.9 | 34.8 | 40.3 | 44.4 | 48.7 | 47.3 | 43.9 | 36.9 | 30.9 | 25.5 | 39.3 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1967 | 1964 | 1976 | 1962 | 1980 | 1964 | 1974 | 1978 | 1985 | 1985 |
| Mean Precipitation (in.) | 6.82 | 5.04 | 4.55 | 2.56 | 1.95 | 1.23 | 0.52 | 0.87 | 1.51 | 3.11 | 6.82 | 7.72 | 42.70 |
| Highest Precipitation (in.) | 15.51 | 10.31 | 8.87 | 4.94 | 3.94 | 4.34 | 2.55 | 5.24 | 3.62 | 7.21 | 18.28 | 14.42 | 58.74 |
| Year Highest Occurred | 1970 | 1983 | 1974 | 1978 | 1963 | 1984 | 1983 | 1968 | 1969 | 1979 | 1973 | 1968 | 1968 |
| Lowest Precipitation (in.) | 0.25 | 0.79 | 0.59 | 0.95 | 0.49 | 0.29 | 0.00 | 0.00 | 0.00 | 0.14 | 1.42 | 1.47 | 27.15 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1966 | 1982 | 1987 | 1967 | 1988 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 797. | 622. | 589. | 471. | 322. | 143. | 48. | 52. | 129. | 372. | 597. | 781. | 4923. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 20. | 66. | 90. | 27. | 0. | 0. | 0. | 203. |