| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.0 | 52.2 | 60.6 | 70.8 | 79.0 | 89.4 | 93.8 | 91.1 | 83.7 | 73.4 | 57.7 | 47.4 | 70.4 |
| Highest Mean Max. Temperature (F) | 60.1 | 61.2 | 71.7 | 78.4 | 85.0 | 94.6 | 97.8 | 95.7 | 89.5 | 79.5 | 64.1 | 57.0 | 72.6 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1981 | 1966 | 1990 | 1980 | 1983 | 1983 | 1963 | 1965 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.6 | 39.6 | 48.5 | 62.7 | 73.7 | 83.6 | 88.7 | 87.7 | 78.8 | 61.3 | 45.0 | 32.6 | 67.5 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1983 | 1983 | 1982 | 1990 | 1981 | 1973 | 1969 | 1972 | 1983 | 1985 |
| Mean Temperature (F) | 29.3 | 35.3 | 43.0 | 53.1 | 62.1 | 72.0 | 76.8 | 74.2 | 66.1 | 54.4 | 40.6 | 31.2 | 53.2 |
| Highest Mean Temperature (F) | 40.1 | 42.2 | 50.1 | 58.9 | 66.5 | 76.1 | 80.4 | 78.2 | 70.1 | 60.9 | 45.7 | 39.3 | 55.2 |
| Year Highest Occurred | 1986 | 1976 | 1989 | 1981 | 1989 | 1981 | 1966 | 1983 | 1983 | 1963 | 1988 | 1980 | 1981 |
| Lowest Mean Temperature (F) | 17.7 | 27.6 | 33.1 | 47.1 | 58.7 | 68.1 | 73.9 | 71.7 | 61.6 | 47.2 | 31.9 | 20.3 | 51.6 |
| Year Lowest Occurred | 1979 | 1978 | 1969 | 1973 | 1983 | 1969 | 1990 | 1965 | 1965 | 1969 | 1972 | 1983 | 1961 |
| Mean Min. Temperature (F) | 12.5 | 18.3 | 25.4 | 35.3 | 45.2 | 54.4 | 59.8 | 57.1 | 48.5 | 35.3 | 23.5 | 14.9 | 35.9 |
| Highest Mean Min. Temperature (F) | 20.0 | 23.4 | 30.3 | 39.3 | 50.7 | 58.2 | 63.5 | 60.9 | 53.4 | 42.2 | 28.2 | 21.6 | 37.8 |
| Year Highest Occurred | 1986 | 1987 | 1974 | 1981 | 1977 | 1988 | 1966 | 1982 | 1990 | 1963 | 1988 | 1980 | 1986 |
| Lowest Mean Min. Temperature (F) | 2.2 | 11.9 | 16.8 | 30.4 | 40.8 | 51.1 | 56.7 | 54.3 | 44.2 | 30.9 | 18.5 | 8.0 | 33.6 |
| Year Lowest Occurred | 1963 | 1982 | 1969 | 1968 | 1968 | 1969 | 1961 | 1967 | 1965 | 1980 | 1975 | 1983 | 1968 |
| Mean Precipitation (in.) | 0.24 | 0.29 | 0.67 | 0.95 | 1.61 | 1.35 | 2.04 | 1.42 | 0.97 | 0.64 | 0.41 | 0.28 | 10.87 |
| Highest Precipitation (in.) | 0.85 | 1.04 | 2.01 | 2.99 | 3.67 | 5.74 | 5.26 | 4.66 | 3.11 | 1.85 | 1.88 | 0.87 | 18.49 |
| Year Highest Occurred | 1985 | 1987 | 1973 | 1983 | 1987 | 1965 | 1971 | 1977 | 1966 | 1969 | 1972 | 1979 | 1965 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.06 | 0.59 | 0.16 | 0.05 | 0.01 | 0.00 | 0.00 | 6.14 |
| Year Lowest Occurred | 1977 | 1970 | 1977 | 1963 | 1966 | 1971 | 1980 | 1962 | 1983 | 1975 | 1966 | 1976 | 1964 |
| Heating Degree Days (F) | 1107. | 832. | 682. | 363. | 125. | 7. | 0. | 0. | 60. | 333. | 732. | 1048. | 5289. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 6. | 36. | 217. | 366. | 285. | 93. | 0. | 0. | 0. | 1003. |