| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 40.6 | 48.2 | 57.3 | 64.5 | 72.9 | 81.1 | 88.3 | 87.2 | 78.3 | 65.9 | 50.6 | 41.1 | 64.7 |
| Highest Mean Max. Temperature (F) | 50.5 | 55.3 | 61.5 | 70.1 | 78.0 | 89.2 | 93.5 | 95.7 | 86.7 | 73.4 | 55.6 | 47.4 | 68.3 |
| Year Highest Occurred | 1967 | 1961 | 1968 | 1977 | 1969 | 1961 | 1985 | 1967 | 1967 | 1988 | 1990 | 1966 | 1967 |
| Lowest Mean Max. Temperature (F) | 23.8 | 35.3 | 53.2 | 59.7 | 66.9 | 74.9 | 81.5 | 82.2 | 71.0 | 61.4 | 37.5 | 26.5 | 60.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1967 | 1977 | 1981 | 1983 | 1976 | 1985 | 1982 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 33.2 | 38.8 | 45.6 | 51.6 | 59.3 | 67.1 | 72.9 | 71.8 | 62.9 | 51.7 | 41.5 | 33.7 | 52.5 |
| Highest Mean Temperature (F) | 41.8 | 45.3 | 49.4 | 55.7 | 62.8 | 72.3 | 76.7 | 77.9 | 69.6 | 57.9 | 46.3 | 39.7 | 54.9 |
| Year Highest Occurred | 1967 | 1961 | 1986 | 1990 | 1969 | 1961 | 1975 | 1971 | 1967 | 1988 | 1988 | 1973 | 1967 |
| Lowest Mean Temperature (F) | 16.3 | 26.1 | 41.8 | 47.5 | 55.3 | 62.6 | 68.5 | 67.2 | 57.8 | 49.2 | 29.4 | 22.1 | 49.2 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1975 | 1977 | 1980 | 1983 | 1964 | 1985 | 1969 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 25.7 | 29.3 | 33.8 | 38.7 | 45.7 | 53.0 | 57.4 | 56.3 | 47.5 | 37.4 | 32.3 | 26.3 | 40.3 |
| Highest Mean Min. Temperature (F) | 33.4 | 35.2 | 38.9 | 41.8 | 48.8 | 57.1 | 61.9 | 60.5 | 52.4 | 42.4 | 37.5 | 33.4 | 42.0 |
| Year Highest Occurred | 1990 | 1961 | 1983 | 1988 | 1987 | 1969 | 1975 | 1971 | 1967 | 1988 | 1983 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 8.7 | 16.9 | 27.5 | 33.8 | 42.6 | 49.4 | 54.4 | 51.9 | 43.6 | 33.9 | 21.3 | 15.4 | 38.0 |
| Year Lowest Occurred | 1979 | 1989 | 1965 | 1982 | 1964 | 1976 | 1978 | 1964 | 1965 | 1978 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.21 | 0.84 | 0.78 | 0.71 | 0.65 | 0.45 | 0.22 | 0.40 | 0.44 | 0.60 | 1.31 | 1.35 | 8.96 |
| Highest Precipitation (in.) | 3.06 | 2.38 | 2.23 | 2.16 | 2.20 | 1.45 | 0.86 | 1.83 | 1.77 | 1.75 | 3.77 | 3.53 | 14.74 |
| Year Highest Occurred | 1970 | 1986 | 1983 | 1988 | 1962 | 1981 | 1973 | 1979 | 1982 | 1982 | 1973 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.25 | 0.01 | 0.16 | 0.00 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.31 | 0.07 | 4.43 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1990 | 1986 | 1985 | 1988 | 1990 | 1988 | 1976 | 1990 | 1967 |
| Heating Degree Days (F) | 986. | 734. | 601. | 402. | 185. | 55. | 8. | 17. | 126. | 412. | 705. | 970. | 5201. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 118. | 253. | 227. | 63. | 0. | 0. | 0. | 669. |