| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 37.7 | 44.5 | 53.2 | 62.8 | 72.8 | 83.4 | 92.0 | 89.8 | 79.4 | 66.6 | 50.7 | 38.8 | 64.3 |
| Highest Mean Max. Temperature (F) | 46.2 | 54.8 | 59.9 | 72.4 | 79.7 | 92.0 | 97.1 | 97.9 | 86.6 | 75.5 | 57.3 | 47.1 | 67.7 |
| Year Highest Occurred | 1961 | 1963 | 1986 | 1987 | 1969 | 1961 | 1989 | 1961 | 1962 | 1963 | 1962 | 1964 | 1961 |
| Lowest Mean Max. Temperature (F) | 29.2 | 34.6 | 46.8 | 54.1 | 66.9 | 77.2 | 88.2 | 81.4 | 71.1 | 58.0 | 44.9 | 31.7 | 60.3 |
| Year Lowest Occurred | 1984 | 1984 | 1964 | 1983 | 1977 | 1969 | 1987 | 1968 | 1965 | 1984 | 1985 | 1990 | 1984 |
| Mean Temperature (F) | 28.6 | 34.1 | 41.8 | 49.9 | 58.7 | 68.1 | 76.2 | 74.1 | 64.2 | 52.7 | 40.2 | 30.0 | 51.6 |
| Highest Mean Temperature (F) | 34.3 | 42.7 | 48.3 | 57.7 | 64.1 | 75.8 | 79.7 | 80.2 | 70.7 | 60.1 | 45.9 | 37.9 | 54.2 |
| Year Highest Occurred | 1978 | 1963 | 1986 | 1987 | 1963 | 1988 | 1989 | 1961 | 1990 | 1988 | 1966 | 1964 | 1961 |
| Lowest Mean Temperature (F) | 20.5 | 25.2 | 36.0 | 43.3 | 53.3 | 63.3 | 73.9 | 67.5 | 57.7 | 46.3 | 34.5 | 22.3 | 48.9 |
| Year Lowest Occurred | 1973 | 1984 | 1964 | 1975 | 1975 | 1975 | 1987 | 1968 | 1965 | 1970 | 1979 | 1990 | 1984 |
| Mean Min. Temperature (F) | 19.6 | 23.7 | 30.4 | 37.0 | 44.6 | 52.8 | 60.3 | 58.3 | 48.9 | 38.6 | 29.8 | 21.2 | 38.8 |
| Highest Mean Min. Temperature (F) | 26.8 | 32.5 | 36.7 | 43.0 | 49.3 | 60.1 | 64.1 | 63.4 | 55.2 | 44.7 | 36.1 | 28.6 | 42.0 |
| Year Highest Occurred | 1978 | 1986 | 1986 | 1987 | 1987 | 1988 | 1988 | 1963 | 1990 | 1988 | 1966 | 1964 | 1981 |
| Lowest Mean Min. Temperature (F) | 9.8 | 15.4 | 23.1 | 31.5 | 39.2 | 46.9 | 57.2 | 53.3 | 42.8 | 32.5 | 23.8 | 12.9 | 35.7 |
| Year Lowest Occurred | 1973 | 1985 | 1976 | 1970 | 1975 | 1976 | 1978 | 1976 | 1970 | 1970 | 1979 | 1990 | 1976 |
| Mean Precipitation (in.) | 1.78 | 1.86 | 2.42 | 2.81 | 2.61 | 1.40 | 0.84 | 0.96 | 1.61 | 1.88 | 1.95 | 1.97 | 22.09 |
| Highest Precipitation (in.) | 3.70 | 3.91 | 6.36 | 6.39 | 6.78 | 5.22 | 3.26 | 4.37 | 7.59 | 4.44 | 5.24 | 7.94 | 41.75 |
| Year Highest Occurred | 1978 | 1986 | 1983 | 1986 | 1977 | 1963 | 1973 | 1968 | 1982 | 1981 | 1988 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.00 | 0.05 | 0.28 | 0.45 | 0.06 | 0.00 | 0.00 | 0.00 | 0.03 | 0.00 | 0.06 | 0.08 | 11.61 |
| Year Lowest Occurred | 1961 | 1988 | 1965 | 1981 | 1972 | 1988 | 1968 | 1962 | 1975 | 1978 | 1976 | 1962 | 1966 |
| Heating Degree Days (F) | 1128. | 865. | 719. | 461. | 219. | 61. | 0. | 9. | 116. | 392. | 744. | 1085. | 5799. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 8. | 24. | 154. | 347. | 291. | 92. | 11. | 0. | 0. | 927. |