| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 47.8 | 53.2 | 63.4 | 73.4 | 79.5 | 86.8 | 92.8 | 92.4 | 84.5 | 74.6 | 61.8 | 50.8 | 71.8 |
| Highest Mean Max. Temperature (F) | 58.5 | 66.5 | 70.5 | 78.8 | 86.4 | 92.7 | 99.9 | 99.5 | 94.2 | 87.8 | 68.2 | 58.1 | 75.0 |
| Year Highest Occurred | 1990 | 1976 | 1967 | 1965 | 1962 | 1977 | 1980 | 1980 | 1978 | 1963 | 1989 | 1984 | 1963 |
| Lowest Mean Max. Temperature (F) | 33.7 | 38.6 | 52.6 | 65.5 | 73.1 | 82.1 | 87.0 | 86.7 | 75.5 | 67.8 | 51.1 | 35.5 | 66.8 |
| Year Lowest Occurred | 1979 | 1978 | 1965 | 1983 | 1968 | 1982 | 1968 | 1966 | 1974 | 1976 | 1972 | 1983 | 1968 |
| Mean Temperature (F) | 36.3 | 41.3 | 51.1 | 61.1 | 68.0 | 75.6 | 80.5 | 79.8 | 72.5 | 61.8 | 50.2 | 39.7 | 59.8 |
| Highest Mean Temperature (F) | 45.0 | 52.3 | 58.1 | 66.0 | 76.5 | 80.1 | 85.4 | 85.8 | 80.7 | 69.1 | 56.3 | 47.3 | 62.4 |
| Year Highest Occurred | 1990 | 1976 | 1967 | 1981 | 1977 | 1977 | 1980 | 1980 | 1978 | 1963 | 1973 | 1984 | 1977 |
| Lowest Mean Temperature (F) | 24.3 | 29.5 | 41.1 | 54.0 | 62.9 | 71.7 | 75.5 | 75.7 | 64.5 | 55.5 | 42.2 | 26.4 | 55.7 |
| Year Lowest Occurred | 1979 | 1979 | 1965 | 1983 | 1968 | 1982 | 1967 | 1966 | 1974 | 1976 | 1968 | 1983 | 1968 |
| Mean Min. Temperature (F) | 24.7 | 29.5 | 38.7 | 48.7 | 56.4 | 64.3 | 68.1 | 67.0 | 60.4 | 49.0 | 38.7 | 28.5 | 47.8 |
| Highest Mean Min. Temperature (F) | 33.7 | 38.1 | 45.9 | 56.4 | 66.7 | 68.4 | 72.3 | 72.1 | 67.2 | 55.1 | 46.6 | 37.3 | 50.4 |
| Year Highest Occurred | 1980 | 1976 | 1973 | 1967 | 1977 | 1990 | 1979 | 1980 | 1978 | 1979 | 1973 | 1971 | 1977 |
| Lowest Mean Min. Temperature (F) | 14.5 | 18.6 | 29.6 | 42.4 | 50.3 | 60.1 | 62.8 | 62.8 | 53.3 | 43.2 | 29.7 | 17.0 | 44.6 |
| Year Lowest Occurred | 1977 | 1979 | 1965 | 1983 | 1973 | 1983 | 1971 | 1967 | 1968 | 1976 | 1976 | 1989 | 1968 |
| Mean Precipitation (in.) | 2.01 | 2.41 | 4.09 | 4.16 | 5.38 | 4.53 | 2.98 | 3.71 | 4.99 | 4.21 | 3.58 | 3.00 | 45.05 |
| Highest Precipitation (in.) | 6.19 | 5.00 | 9.71 | 8.14 | 10.30 | 10.32 | 13.44 | 9.31 | 12.67 | 12.37 | 7.12 | 7.52 | 73.47 |
| Year Highest Occurred | 1982 | 1966 | 1973 | 1990 | 1986 | 1973 | 1961 | 1964 | 1970 | 1970 | 1968 | 1984 | 1973 |
| Lowest Precipitation (in.) | 0.09 | 0.21 | 0.56 | 0.24 | 2.10 | 1.11 | 0.13 | 0.54 | 0.29 | 0.12 | 0.38 | 0.27 | 25.74 |
| Year Lowest Occurred | 1986 | 1963 | 1971 | 1989 | 1962 | 1977 | 1974 | 1978 | 1979 | 1965 | 1969 | 1989 | 1980 |
| Heating Degree Days (F) | 890. | 664. | 443. | 162. | 62. | 0. | 0. | 0. | 27. | 157. | 449. | 784. | 3638. |
| Cooling Degree Days (F) | 0. | 0. | 12. | 45. | 155. | 318. | 481. | 459. | 252. | 58. | 5. | 0. | 1785. |