| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 41.9 | 49.4 | 56.4 | 63.7 | 71.6 | 81.0 | 90.0 | 89.6 | 80.3 | 68.4 | 52.2 | 43.1 | 65.6 |
| Highest Mean Max. Temperature (F) | 48.3 | 55.0 | 62.3 | 73.9 | 79.8 | 89.6 | 97.0 | 97.5 | 88.6 | 81.1 | 58.8 | 48.9 | 68.7 |
| Year Highest Occurred | 1981 | 1977 | 1968 | 1987 | 1966 | 1986 | 1985 | 1967 | 1987 | 1988 | 1965 | 1989 | 1987 |
| Lowest Mean Max. Temperature (F) | 28.4 | 37.3 | 51.3 | 55.8 | 64.0 | 74.5 | 83.8 | 81.6 | 72.5 | 61.0 | 37.9 | 33.2 | 62.7 |
| Year Lowest Occurred | 1979 | 1989 | 1962 | 1975 | 1977 | 1984 | 1983 | 1968 | 1985 | 1969 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 31.8 | 37.8 | 42.9 | 48.6 | 55.6 | 63.7 | 69.8 | 69.0 | 60.6 | 50.4 | 40.4 | 32.8 | 50.3 |
| Highest Mean Temperature (F) | 38.2 | 43.1 | 48.2 | 54.8 | 59.3 | 69.4 | 74.7 | 74.3 | 66.2 | 59.0 | 44.9 | 38.9 | 52.2 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1987 | 1969 | 1986 | 1985 | 1971 | 1990 | 1988 | 1965 | 1973 | 1986 |
| Lowest Mean Temperature (F) | 17.5 | 25.5 | 39.3 | 43.0 | 51.8 | 59.2 | 64.8 | 65.4 | 55.2 | 46.1 | 28.0 | 21.9 | 47.1 |
| Year Lowest Occurred | 1979 | 1989 | 1964 | 1975 | 1977 | 1976 | 1963 | 1962 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 21.7 | 26.1 | 29.3 | 33.4 | 39.6 | 46.3 | 49.5 | 48.4 | 40.8 | 32.4 | 28.4 | 22.3 | 34.9 |
| Highest Mean Min. Temperature (F) | 29.1 | 32.3 | 34.3 | 37.2 | 42.1 | 51.3 | 55.2 | 52.5 | 45.3 | 37.7 | 34.3 | 30.2 | 36.7 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1969 | 1975 | 1983 | 1963 | 1979 | 1973 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 6.5 | 13.6 | 23.3 | 29.7 | 35.8 | 42.0 | 44.8 | 44.0 | 36.2 | 29.4 | 18.1 | 10.2 | 31.4 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1964 | 1964 | 1976 | 1963 | 1988 | 1965 | 1987 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.42 | 1.07 | 1.33 | 1.31 | 1.41 | 1.20 | 0.46 | 0.73 | 0.68 | 0.92 | 1.56 | 1.52 | 13.61 |
| Highest Precipitation (in.) | 3.64 | 3.01 | 3.73 | 2.56 | 3.40 | 3.20 | 1.87 | 2.83 | 1.79 | 2.30 | 3.29 | 4.92 | 21.28 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1981 | 1964 | 1987 | 1976 | 1973 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.38 | 0.07 | 0.14 | 0.29 | 0.23 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.16 | 8.58 |
| Year Lowest Occurred | 1985 | 1964 | 1968 | 1966 | 1974 | 1962 | 1988 | 1988 | 1990 | 1988 | 1969 | 1976 | 1974 |
| Heating Degree Days (F) | 1029. | 762. | 685. | 492. | 291. | 106. | 17. | 38. | 177. | 453. | 738. | 998. | 5786. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 67. | 166. | 162. | 45. | 0. | 0. | 0. | 440. |