| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.7 | 46.9 | 51.8 | 58.6 | 65.6 | 74.0 | 83.0 | 82.2 | 74.9 | 64.8 | 49.2 | 41.8 | 61.1 |
| Highest Mean Max. Temperature (F) | 48.1 | 56.5 | 64.2 | 71.2 | 73.0 | 82.3 | 88.3 | 90.0 | 82.1 | 74.6 | 58.7 | 47.9 | 65.8 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1987 | 1986 | 1988 | 1988 | 1974 | 1988 | 1976 | 1981 | 1987 |
| Lowest Mean Max. Temperature (F) | 35.5 | 38.5 | 43.2 | 44.8 | 54.7 | 66.3 | 77.5 | 71.4 | 66.8 | 54.6 | 41.1 | 33.4 | 57.4 |
| Year Lowest Occurred | 1969 | 1969 | 1975 | 1967 | 1977 | 1980 | 1963 | 1976 | 1986 | 1989 | 1985 | 1967 | 1975 |
| Mean Temperature (F) | 27.9 | 33.2 | 37.4 | 42.3 | 48.9 | 56.5 | 62.7 | 61.7 | 54.4 | 46.0 | 35.1 | 29.1 | 44.6 |
| Highest Mean Temperature (F) | 35.9 | 42.0 | 44.2 | 50.4 | 54.2 | 62.8 | 67.0 | 66.2 | 58.5 | 52.3 | 40.4 | 36.3 | 47.7 |
| Year Highest Occurred | 1986 | 1986 | 1984 | 1987 | 1987 | 1986 | 1985 | 1986 | 1975 | 1988 | 1976 | 1981 | 1987 |
| Lowest Mean Temperature (F) | 20.5 | 25.0 | 32.1 | 33.4 | 42.8 | 51.8 | 58.3 | 56.5 | 50.2 | 40.9 | 27.4 | 19.8 | 42.8 |
| Year Lowest Occurred | 1977 | 1989 | 1964 | 1967 | 1977 | 1980 | 1966 | 1976 | 1986 | 1969 | 1985 | 1967 | 1971 |
| Mean Min. Temperature (F) | 15.1 | 19.6 | 23.0 | 25.9 | 32.2 | 39.0 | 42.3 | 41.1 | 33.9 | 27.1 | 20.9 | 16.3 | 28.0 |
| Highest Mean Min. Temperature (F) | 23.6 | 28.9 | 30.1 | 31.6 | 36.8 | 44.1 | 46.6 | 46.5 | 39.3 | 32.6 | 28.1 | 24.7 | 30.8 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1965 | 1963 | 1977 | 1985 | 1961 | 1963 | 1979 | 1970 | 1981 | 1986 |
| Lowest Mean Min. Temperature (F) | 5.1 | 7.4 | 18.5 | 21.5 | 28.3 | 32.3 | 37.4 | 37.7 | 28.4 | 19.7 | 12.9 | 6.1 | 25.4 |
| Year Lowest Occurred | 1977 | 1989 | 1969 | 1964 | 1988 | 1988 | 1966 | 1969 | 1972 | 1972 | 1972 | 1967 | 1972 |
| Mean Precipitation (in.) | 1.41 | 1.13 | 1.12 | 0.76 | 0.95 | 0.93 | 0.33 | 0.55 | 0.57 | 1.04 | 1.89 | 1.91 | 12.59 |
| Highest Precipitation (in.) | 3.87 | 4.29 | 3.02 | 2.69 | 3.55 | 2.28 | 1.80 | 3.21 | 2.76 | 4.81 | 5.74 | 8.07 | 19.85 |
| Year Highest Occurred | 1970 | 1986 | 1989 | 1965 | 1971 | 1964 | 1987 | 1976 | 1985 | 1962 | 1981 | 1964 | 1981 |
| Lowest Precipitation (in.) | 0.01 | 0.01 | 0.04 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 0.07 | 6.65 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1987 | 1976 | 1973 | 1989 | 1987 | 1988 | 1965 | 1967 | 1989 | 1988 |
| Heating Degree Days (F) | 1150. | 890. | 856. | 681. | 499. | 267. | 108. | 142. | 324. | 589. | 897. | 1113. | 7516. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 12. | 37. | 40. | 6. | 0. | 0. | 0. | 95. |