| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 42.0 | 48.4 | 55.0 | 61.7 | 70.0 | 79.9 | 88.9 | 87.7 | 78.0 | 65.8 | 51.3 | 42.9 | 64.3 |
| Highest Mean Max. Temperature (F) | 50.3 | 54.5 | 60.3 | 69.6 | 76.1 | 88.0 | 95.0 | 96.3 | 87.9 | 73.6 | 56.1 | 49.7 | 67.7 |
| Year Highest Occurred | 1967 | 1961 | 1968 | 1977 | 1973 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1980 | 1967 |
| Lowest Mean Max. Temperature (F) | 21.0 | 35.4 | 51.3 | 55.5 | 63.3 | 72.8 | 81.9 | 80.7 | 69.5 | 60.8 | 37.3 | 26.0 | 60.3 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1975 | 1962 | 1980 | 1986 | 1976 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.6 | 38.6 | 43.6 | 48.7 | 55.7 | 63.9 | 70.1 | 69.7 | 61.1 | 51.2 | 41.3 | 34.4 | 51.0 |
| Highest Mean Temperature (F) | 41.9 | 45.5 | 48.4 | 53.9 | 59.2 | 69.0 | 75.5 | 75.1 | 68.2 | 57.3 | 45.7 | 41.4 | 53.2 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1987 | 1961 | 1985 | 1971 | 1967 | 1988 | 1990 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 14.5 | 25.9 | 39.5 | 43.3 | 51.2 | 59.2 | 65.6 | 65.3 | 55.0 | 47.6 | 27.7 | 19.9 | 47.5 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1977 | 1980 | 1986 | 1980 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.1 | 28.8 | 32.2 | 35.5 | 41.4 | 47.9 | 51.3 | 51.6 | 44.3 | 36.5 | 31.2 | 25.8 | 37.6 |
| Highest Mean Min. Temperature (F) | 33.5 | 36.4 | 37.3 | 39.7 | 45.2 | 52.1 | 56.0 | 56.5 | 48.4 | 41.0 | 35.3 | 33.1 | 39.3 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1989 | 1987 | 1969 | 1985 | 1988 | 1967 | 1988 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 7.9 | 16.4 | 26.8 | 31.1 | 37.2 | 43.2 | 47.4 | 45.7 | 40.5 | 33.1 | 18.1 | 13.8 | 34.7 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1964 | 1976 | 1963 | 1969 | 1985 | 1978 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.48 | 1.07 | 1.42 | 1.38 | 1.30 | 1.13 | 0.40 | 0.74 | 0.77 | 0.91 | 1.60 | 1.54 | 13.74 |
| Highest Precipitation (in.) | 4.02 | 2.43 | 3.12 | 3.27 | 3.34 | 2.30 | 1.23 | 2.95 | 1.85 | 2.45 | 3.91 | 3.58 | 19.40 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1978 | 1962 | 1971 | 1983 | 1965 | 1982 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.41 | 0.24 | 0.37 | 0.18 | 0.16 | 0.17 | 0.00 | 0.00 | 0.00 | 0.02 | 0.23 | 0.28 | 8.59 |
| Year Lowest Occurred | 1973 | 1967 | 1968 | 1973 | 1966 | 1986 | 1985 | 1981 | 1975 | 1987 | 1982 | 1976 | 1967 |
| Heating Degree Days (F) | 973. | 739. | 663. | 489. | 288. | 106. | 20. | 32. | 167. | 428. | 711. | 949. | 5565. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 73. | 178. | 178. | 50. | 0. | 0. | 0. | 479. |