| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.9 | 42.3 | 47.4 | 55.7 | 65.0 | 74.1 | 83.5 | 82.0 | 73.8 | 62.6 | 46.6 | 39.0 | 59.2 |
| Highest Mean Max. Temperature (F) | 47.7 | 50.6 | 55.1 | 64.2 | 71.0 | 81.6 | 89.2 | 88.3 | 81.9 | 74.5 | 56.4 | 47.8 | 61.8 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1977 | 1966 | 1977 | 1985 | 1967 | 1975 | 1988 | 1976 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 29.1 | 32.0 | 41.9 | 43.5 | 55.7 | 66.4 | 76.9 | 72.3 | 63.7 | 53.4 | 37.8 | 32.8 | 56.5 |
| Year Lowest Occurred | 1989 | 1989 | 1975 | 1967 | 1977 | 1964 | 1963 | 1976 | 1986 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 28.5 | 32.7 | 36.9 | 43.2 | 51.2 | 59.3 | 66.8 | 65.2 | 57.5 | 47.9 | 36.6 | 29.8 | 46.3 |
| Highest Mean Temperature (F) | 37.4 | 41.3 | 42.6 | 49.4 | 56.6 | 66.0 | 71.5 | 70.6 | 63.0 | 55.8 | 41.5 | 36.4 | 48.5 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1973 | 1977 | 1985 | 1967 | 1974 | 1988 | 1976 | 1962 | 1986 |
| Lowest Mean Temperature (F) | 18.7 | 22.8 | 31.6 | 35.6 | 44.3 | 54.1 | 60.9 | 57.0 | 50.4 | 42.1 | 27.8 | 21.8 | 43.8 |
| Year Lowest Occurred | 1989 | 1989 | 1964 | 1967 | 1977 | 1980 | 1983 | 1976 | 1985 | 1985 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 19.0 | 23.1 | 26.3 | 30.6 | 37.3 | 44.6 | 50.2 | 48.2 | 41.1 | 33.2 | 26.4 | 20.6 | 33.4 |
| Highest Mean Min. Temperature (F) | 28.0 | 31.9 | 31.3 | 36.0 | 42.8 | 50.4 | 54.5 | 53.1 | 47.2 | 38.8 | 31.4 | 28.1 | 35.5 |
| Year Highest Occurred | 1986 | 1963 | 1983 | 1990 | 1969 | 1977 | 1988 | 1986 | 1967 | 1979 | 1970 | 1973 | 1973 |
| Lowest Mean Min. Temperature (F) | 8.2 | 12.8 | 20.6 | 25.8 | 32.8 | 38.6 | 43.7 | 41.6 | 35.8 | 27.4 | 17.8 | 10.7 | 29.8 |
| Year Lowest Occurred | 1989 | 1964 | 1985 | 1970 | 1978 | 1980 | 1983 | 1976 | 1985 | 1985 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 2.01 | 1.41 | 1.49 | 1.22 | 1.43 | 1.15 | 0.36 | 0.54 | 0.63 | 1.20 | 2.07 | 2.11 | 15.62 |
| Highest Precipitation (in.) | 5.81 | 4.71 | 3.84 | 3.38 | 4.12 | 4.23 | 1.39 | 3.04 | 2.73 | 6.62 | 4.59 | 8.96 | 23.75 |
| Year Highest Occurred | 1970 | 1986 | 1971 | 1988 | 1971 | 1964 | 1976 | 1976 | 1986 | 1962 | 1970 | 1964 | 1964 |
| Lowest Precipitation (in.) | 0.20 | 0.11 | 0.26 | 0.19 | 0.32 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.18 | 0.01 | 10.42 |
| Year Lowest Occurred | 1984 | 1964 | 1965 | 1968 | 1976 | 1973 | 1989 | 1988 | 1987 | 1988 | 1976 | 1976 | 1989 |
| Heating Degree Days (F) | 1132. | 904. | 871. | 654. | 428. | 202. | 63. | 100. | 253. | 530. | 852. | 1091. | 7080. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 31. | 119. | 106. | 28. | 0. | 0. | 0. | 284. |