| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 43.6 | 49.7 | 58.7 | 69.9 | 78.2 | 88.4 | 93.9 | 91.2 | 82.4 | 71.5 | 56.2 | 45.3 | 69.1 |
| Highest Mean Max. Temperature (F) | 57.4 | 59.3 | 68.3 | 77.6 | 85.3 | 94.1 | 99.7 | 96.4 | 88.6 | 81.5 | 64.0 | 53.0 | 72.9 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1962 | 1990 | 1963 | 1983 | 1963 | 1963 | 1965 | 1980 | 1963 |
| Lowest Mean Max. Temperature (F) | 29.4 | 37.0 | 46.3 | 60.8 | 72.4 | 81.8 | 90.1 | 86.1 | 74.9 | 60.1 | 42.9 | 30.3 | 66.8 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1983 | 1983 | 1982 | 1972 | 1966 | 1965 | 1969 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 28.2 | 34.0 | 42.4 | 53.8 | 62.9 | 73.2 | 78.7 | 76.2 | 66.8 | 54.4 | 40.1 | 30.1 | 53.4 |
| Highest Mean Temperature (F) | 39.7 | 41.5 | 50.2 | 59.9 | 67.4 | 76.9 | 83.0 | 81.4 | 72.8 | 62.4 | 45.4 | 37.4 | 55.8 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1963 | 1963 | 1963 | 1983 | 1963 | 1963 | 1965 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 17.7 | 23.2 | 31.9 | 47.5 | 58.4 | 67.2 | 75.9 | 72.9 | 61.1 | 48.3 | 31.6 | 18.6 | 51.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1984 | 1983 | 1989 | 1972 | 1966 | 1965 | 1969 | 1972 | 1983 | 1989 |
| Mean Min. Temperature (F) | 12.6 | 18.3 | 26.0 | 37.7 | 47.5 | 57.9 | 63.5 | 61.2 | 51.1 | 37.3 | 24.0 | 14.8 | 37.7 |
| Highest Mean Min. Temperature (F) | 21.9 | 24.9 | 33.1 | 42.2 | 52.5 | 61.7 | 66.6 | 66.4 | 56.9 | 43.3 | 29.1 | 22.4 | 40.6 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1977 | 1981 | 1966 | 1983 | 1963 | 1963 | 1981 | 1975 | 1986 |
| Lowest Mean Min. Temperature (F) | 1.4 | 9.3 | 16.6 | 32.5 | 44.4 | 52.1 | 58.8 | 57.5 | 46.8 | 31.8 | 18.3 | 6.8 | 33.0 |
| Year Lowest Occurred | 1963 | 1989 | 1965 | 1988 | 1983 | 1989 | 1989 | 1989 | 1961 | 1989 | 1989 | 1983 | 1989 |
| Mean Precipitation (in.) | 0.42 | 0.42 | 0.90 | 1.15 | 2.50 | 2.19 | 2.24 | 1.87 | 1.32 | 0.71 | 0.52 | 0.38 | 14.62 |
| Highest Precipitation (in.) | 1.33 | 1.87 | 4.67 | 5.05 | 6.97 | 6.60 | 5.85 | 5.79 | 3.45 | 2.48 | 1.88 | 1.75 | 20.31 |
| Year Highest Occurred | 1966 | 1990 | 1973 | 1980 | 1964 | 1965 | 1970 | 1986 | 1988 | 1984 | 1975 | 1965 | 1979 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.21 | 0.32 | 0.06 | 0.03 | 0.00 | 0.00 | 0.00 | 9.61 |
| Year Lowest Occurred | 1970 | 1973 | 1986 | 1963 | 1966 | 1984 | 1964 | 1974 | 1974 | 1980 | 1989 | 1976 | 1974 |
| Heating Degree Days (F) | 1141. | 868. | 701. | 345. | 124. | 7. | 0. | 0. | 65. | 334. | 747. | 1082. | 5414. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 9. | 59. | 253. | 425. | 347. | 119. | 6. | 0. | 0. | 1218. |