| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.7 | 52.2 | 56.9 | 62.2 | 69.3 | 75.9 | 81.9 | 82.2 | 76.3 | 65.0 | 53.3 | 46.5 | 64.0 |
| Highest Mean Max. Temperature (F) | 52.6 | 59.7 | 62.0 | 68.8 | 74.3 | 81.4 | 88.8 | 91.6 | 84.3 | 73.7 | 57.7 | 50.9 | 66.8 |
| Year Highest Occurred | 1961 | 1968 | 1965 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1966 | 1987 |
| Lowest Mean Max. Temperature (F) | 38.1 | 45.9 | 52.5 | 57.5 | 62.1 | 70.0 | 75.3 | 76.1 | 70.3 | 59.3 | 44.1 | 40.4 | 61.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1980 | 1963 | 1975 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 40.8 | 44.6 | 48.0 | 51.8 | 57.8 | 63.9 | 68.4 | 68.6 | 63.8 | 55.0 | 46.6 | 40.9 | 54.2 |
| Highest Mean Temperature (F) | 45.2 | 51.0 | 52.7 | 57.6 | 61.5 | 67.3 | 73.0 | 74.0 | 68.6 | 59.7 | 49.2 | 45.6 | 56.1 |
| Year Highest Occurred | 1986 | 1968 | 1986 | 1989 | 1969 | 1961 | 1985 | 1967 | 1974 | 1988 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 32.5 | 38.2 | 44.4 | 47.7 | 53.7 | 59.8 | 64.1 | 64.7 | 60.4 | 51.6 | 38.4 | 35.0 | 52.2 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1962 | 1971 | 1963 | 1975 | 1961 | 1984 | 1985 | 1990 | 1985 |
| Mean Min. Temperature (F) | 34.8 | 37.0 | 39.0 | 41.4 | 46.3 | 51.8 | 54.8 | 55.0 | 51.2 | 44.9 | 39.8 | 35.3 | 44.3 |
| Highest Mean Min. Temperature (F) | 40.1 | 42.3 | 43.7 | 46.4 | 49.5 | 56.1 | 57.2 | 58.9 | 54.7 | 50.3 | 43.3 | 40.3 | 45.8 |
| Year Highest Occurred | 1967 | 1968 | 1986 | 1989 | 1987 | 1969 | 1985 | 1977 | 1990 | 1988 | 1983 | 1966 | 1986 |
| Lowest Mean Min. Temperature (F) | 26.8 | 30.4 | 35.5 | 37.4 | 43.2 | 47.7 | 51.9 | 51.6 | 47.5 | 41.6 | 32.7 | 28.6 | 42.1 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1965 | 1965 | 1962 | 1973 | 1965 | 1971 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 7.13 | 5.21 | 4.75 | 3.41 | 2.54 | 1.94 | 0.78 | 1.12 | 2.11 | 3.44 | 6.87 | 7.66 | 46.96 |
| Highest Precipitation (in.) | 14.05 | 11.74 | 8.04 | 9.44 | 5.19 | 4.60 | 4.24 | 4.95 | 4.50 | 7.09 | 14.21 | 14.78 | 65.44 |
| Year Highest Occurred | 1970 | 1961 | 1974 | 1969 | 1984 | 1984 | 1983 | 1968 | 1969 | 1968 | 1973 | 1964 | 1968 |
| Lowest Precipitation (in.) | 0.46 | 1.22 | 1.47 | 0.77 | 0.93 | 0.49 | 0.00 | 0.00 | 0.00 | 0.18 | 0.93 | 1.69 | 30.02 |
| Year Lowest Occurred | 1985 | 1964 | 1965 | 1977 | 1985 | 1987 | 1984 | 1981 | 1975 | 1988 | 1976 | 1976 | 1985 |
| Heating Degree Days (F) | 750. | 571. | 527. | 396. | 228. | 92. | 20. | 33. | 98. | 310. | 552. | 747. | 4324. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 5. | 59. | 126. | 145. | 62. | 0. | 0. | 0. | 397. |