| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.7 | 48.3 | 55.3 | 64.5 | 74.1 | 85.1 | 92.7 | 89.5 | 80.2 | 67.5 | 53.0 | 42.3 | 66.2 |
| Highest Mean Max. Temperature (F) | 49.1 | 55.6 | 64.4 | 73.3 | 82.4 | 90.8 | 96.4 | 94.8 | 87.2 | 75.5 | 60.0 | 53.5 | 69.8 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1966 | 1977 | 1966 | 1966 | 1979 | 1988 | 1962 | 1981 | 1981 |
| Lowest Mean Max. Temperature (F) | 33.1 | 39.8 | 47.2 | 54.6 | 65.8 | 77.4 | 87.9 | 81.2 | 74.4 | 58.7 | 44.4 | 31.8 | 62.8 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1967 | 1977 | 1967 | 1973 | 1968 | 1986 | 1969 | 1972 | 1972 | 1971 |
| Mean Temperature (F) | 28.5 | 34.8 | 40.8 | 48.4 | 57.3 | 66.9 | 74.8 | 72.4 | 62.7 | 51.3 | 39.3 | 29.5 | 50.6 |
| Highest Mean Temperature (F) | 37.0 | 41.0 | 47.6 | 55.3 | 63.1 | 71.8 | 77.9 | 75.5 | 67.3 | 57.7 | 44.4 | 38.6 | 53.7 |
| Year Highest Occurred | 1969 | 1963 | 1989 | 1989 | 1966 | 1977 | 1966 | 1969 | 1963 | 1988 | 1981 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 21.6 | 26.3 | 35.5 | 41.4 | 52.1 | 61.5 | 70.9 | 65.9 | 58.1 | 44.8 | 34.4 | 20.6 | 48.4 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1967 | 1977 | 1967 | 1987 | 1968 | 1986 | 1969 | 1964 | 1990 | 1975 |
| Mean Min. Temperature (F) | 15.3 | 21.1 | 26.2 | 32.3 | 40.3 | 48.6 | 57.0 | 55.2 | 45.2 | 34.9 | 25.6 | 16.6 | 34.9 |
| Highest Mean Min. Temperature (F) | 26.1 | 27.8 | 33.1 | 37.3 | 45.5 | 53.3 | 59.5 | 59.7 | 50.4 | 41.2 | 30.4 | 24.5 | 37.5 |
| Year Highest Occurred | 1969 | 1986 | 1978 | 1990 | 1969 | 1986 | 1981 | 1969 | 1963 | 1963 | 1965 | 1964 | 1981 |
| Lowest Mean Min. Temperature (F) | 7.2 | 12.7 | 20.3 | 27.4 | 35.4 | 44.4 | 53.5 | 50.6 | 40.2 | 30.3 | 20.4 | 5.9 | 32.7 |
| Year Lowest Occurred | 1962 | 1989 | 1976 | 1970 | 1983 | 1984 | 1987 | 1968 | 1965 | 1970 | 1979 | 1990 | 1984 |
| Mean Precipitation (in.) | 0.36 | 0.51 | 0.83 | 0.86 | 0.80 | 0.56 | 0.61 | 0.86 | 0.84 | 0.80 | 0.55 | 0.46 | 8.04 |
| Highest Precipitation (in.) | 1.57 | 1.90 | 2.39 | 3.04 | 3.34 | 2.30 | 2.06 | 2.18 | 4.33 | 2.76 | 1.65 | 2.85 | 14.69 |
| Year Highest Occurred | 1980 | 1980 | 1980 | 1967 | 1980 | 1967 | 1985 | 1983 | 1982 | 1981 | 1978 | 1966 | 1980 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.59 |
| Year Lowest Occurred | 1989 | 1984 | 1988 | 1979 | 1974 | 1979 | 1988 | 1985 | 1979 | 1977 | 1979 | 1989 | 1968 |
| Heating Degree Days (F) | 1132. | 846. | 750. | 498. | 255. | 67. | 0. | 6. | 130. | 429. | 771. | 1101. | 5985. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 16. | 124. | 304. | 235. | 61. | 0. | 0. | 0. | 740. |