| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 45.3 | 50.0 | 54.9 | 60.0 | 66.6 | 72.8 | 78.8 | 78.8 | 72.7 | 61.0 | 51.1 | 45.2 | 61.4 |
| Highest Mean Max. Temperature (F) | 52.2 | 56.8 | 59.5 | 64.8 | 71.8 | 78.7 | 86.5 | 88.3 | 81.4 | 68.6 | 54.2 | 50.0 | 63.8 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1967 | 1979 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.9 | 42.0 | 50.6 | 55.4 | 60.4 | 67.6 | 72.4 | 73.1 | 66.9 | 55.9 | 42.7 | 38.8 | 59.6 |
| Year Lowest Occurred | 1969 | 1989 | 1975 | 1975 | 1962 | 1980 | 1963 | 1989 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.4 | 42.9 | 46.1 | 49.9 | 55.4 | 60.9 | 65.4 | 65.4 | 60.6 | 52.0 | 44.8 | 39.7 | 51.9 |
| Highest Mean Temperature (F) | 45.1 | 49.4 | 50.1 | 54.1 | 58.7 | 64.1 | 70.1 | 70.4 | 65.4 | 56.3 | 48.3 | 44.3 | 53.9 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1987 | 1961 | 1985 | 1967 | 1974 | 1988 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 32.3 | 35.9 | 42.7 | 45.7 | 51.5 | 57.8 | 60.8 | 62.3 | 57.7 | 48.8 | 37.0 | 33.3 | 49.9 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1962 | 1971 | 1963 | 1975 | 1964 | 1984 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.6 | 35.8 | 37.4 | 39.6 | 44.0 | 49.0 | 51.9 | 51.9 | 48.4 | 43.1 | 38.6 | 34.1 | 42.3 |
| Highest Mean Min. Temperature (F) | 38.4 | 41.9 | 41.5 | 43.3 | 48.2 | 53.8 | 54.9 | 56.1 | 52.4 | 48.6 | 42.4 | 39.2 | 44.1 |
| Year Highest Occurred | 1986 | 1968 | 1983 | 1990 | 1987 | 1969 | 1990 | 1990 | 1990 | 1988 | 1965 | 1966 | 1986 |
| Lowest Mean Min. Temperature (F) | 25.5 | 29.8 | 32.6 | 35.9 | 40.9 | 45.0 | 47.6 | 48.8 | 44.9 | 40.0 | 31.2 | 26.0 | 39.3 |
| Year Lowest Occurred | 1963 | 1989 | 1985 | 1975 | 1964 | 1962 | 1962 | 1973 | 1965 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 8.53 | 6.40 | 6.23 | 4.77 | 3.73 | 2.58 | 1.03 | 1.49 | 2.63 | 4.55 | 8.44 | 8.90 | 59.28 |
| Highest Precipitation (in.) | 15.99 | 16.04 | 10.83 | 8.47 | 7.13 | 6.76 | 4.46 | 6.28 | 5.58 | 9.45 | 15.87 | 17.50 | 77.33 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1988 | 1984 | 1984 | 1983 | 1968 | 1977 | 1990 | 1973 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.51 | 2.06 | 1.87 | 2.46 | 1.46 | 0.69 | 0.00 | 0.00 | 0.00 | 0.36 | 1.64 | 2.69 | 42.70 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1966 | 1966 | 1986 | 1984 | 1967 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 794. | 619. | 586. | 453. | 298. | 141. | 58. | 67. | 154. | 403. | 606. | 784. | 4963. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 18. | 71. | 79. | 22. | 0. | 0. | 0. | 190. |