| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 54.7 | 58.2 | 59.6 | 64.0 | 70.8 | 78.2 | 85.1 | 84.9 | 81.6 | 73.6 | 60.3 | 54.3 | 68.8 |
| Highest Mean Max. Temperature (F) | 60.3 | 67.1 | 66.0 | 71.2 | 76.5 | 83.2 | 89.5 | 91.1 | 88.1 | 81.0 | 69.1 | 61.0 | 70.3 |
| Year Highest Occurred | 1984 | 1988 | 1972 | 1987 | 1973 | 1977 | 1970 | 1967 | 1974 | 1978 | 1976 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 49.3 | 48.7 | 55.0 | 51.1 | 61.6 | 72.3 | 77.6 | 78.8 | 72.8 | 66.1 | 53.2 | 47.9 | 66.9 |
| Year Lowest Occurred | 1969 | 1969 | 1967 | 1967 | 1977 | 1980 | 1987 | 1976 | 1986 | 1984 | 1973 | 1972 | 1963 |
| Mean Temperature (F) | 43.5 | 46.5 | 47.9 | 50.5 | 55.7 | 61.5 | 66.1 | 65.8 | 62.4 | 56.6 | 48.3 | 43.5 | 54.0 |
| Highest Mean Temperature (F) | 47.3 | 52.4 | 52.8 | 55.2 | 59.9 | 65.0 | 69.1 | 69.0 | 65.7 | 59.8 | 53.6 | 48.0 | 55.4 |
| Year Highest Occurred | 1986 | 1963 | 1972 | 1989 | 1969 | 1961 | 1970 | 1967 | 1979 | 1965 | 1976 | 1981 | 1981 |
| Lowest Mean Temperature (F) | 40.4 | 41.0 | 43.9 | 43.0 | 50.1 | 57.2 | 62.0 | 62.3 | 58.2 | 53.0 | 42.9 | 36.7 | 52.8 |
| Year Lowest Occurred | 1982 | 1989 | 1985 | 1967 | 1977 | 1980 | 1987 | 1985 | 1986 | 1984 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 32.1 | 34.8 | 36.2 | 37.0 | 40.6 | 44.7 | 47.0 | 46.7 | 43.1 | 39.6 | 36.2 | 32.6 | 39.2 |
| Highest Mean Min. Temperature (F) | 38.7 | 42.6 | 41.3 | 41.2 | 44.4 | 49.7 | 50.2 | 50.6 | 46.1 | 45.1 | 42.6 | 40.1 | 41.4 |
| Year Highest Occurred | 1970 | 1968 | 1978 | 1965 | 1969 | 1969 | 1985 | 1961 | 1968 | 1963 | 1970 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 26.9 | 27.5 | 31.4 | 33.1 | 36.7 | 41.2 | 43.9 | 43.7 | 38.4 | 34.6 | 28.5 | 21.5 | 37.5 |
| Year Lowest Occurred | 1962 | 1964 | 1964 | 1970 | 1985 | 1984 | 1989 | 1985 | 1964 | 1971 | 1990 | 1990 | 1990 |
| Mean Precipitation (in.) | 9.70 | 7.41 | 7.05 | 2.99 | 1.12 | 0.22 | 0.08 | 0.27 | 0.87 | 3.09 | 7.98 | 8.88 | 49.66 |
| Highest Precipitation (in.) | 26.05 | 21.62 | 18.43 | 10.38 | 8.40 | 1.07 | 1.26 | 2.11 | 4.93 | 11.36 | 19.18 | 31.41 | 91.58 |
| Year Highest Occurred | 1970 | 1986 | 1975 | 1963 | 1990 | 1984 | 1974 | 1968 | 1986 | 1962 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.83 | 0.23 | 0.32 | 0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.18 | 22.63 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1985 | 1982 | 1985 | 1990 | 1990 | 1988 | 1978 | 1990 | 1989 | 1976 |
| Heating Degree Days (F) | 667. | 518. | 530. | 435. | 293. | 126. | 46. | 42. | 107. | 263. | 501. | 667. | 4195. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 21. | 80. | 67. | 29. | 0. | 0. | 0. | 202. |