| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 46.2 | 51.1 | 55.1 | 60.4 | 67.4 | 72.8 | 78.0 | 78.1 | 72.2 | 62.0 | 51.6 | 45.9 | 61.7 |
| Highest Mean Max. Temperature (F) | 51.7 | 57.3 | 60.0 | 65.0 | 71.9 | 77.9 | 84.4 | 86.5 | 78.9 | 66.4 | 55.4 | 50.5 | 63.6 |
| Year Highest Occurred | 1986 | 1968 | 1981 | 1987 | 1969 | 1967 | 1985 | 1967 | 1967 | 1965 | 1965 | 1979 | 1967 |
| Lowest Mean Max. Temperature (F) | 37.6 | 43.7 | 50.0 | 56.2 | 61.7 | 67.1 | 73.3 | 72.2 | 66.8 | 59.4 | 42.4 | 40.5 | 59.9 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1972 | 1962 | 1971 | 1986 | 1976 | 1978 | 1984 | 1985 | 1990 | 1964 |
| Mean Temperature (F) | 39.7 | 43.0 | 45.7 | 49.7 | 55.5 | 61.0 | 64.7 | 64.8 | 59.8 | 51.8 | 44.2 | 39.8 | 51.6 |
| Highest Mean Temperature (F) | 44.2 | 47.0 | 49.6 | 53.3 | 58.3 | 65.7 | 67.9 | 69.2 | 64.2 | 55.2 | 47.9 | 44.2 | 52.8 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1969 | 1969 | 1990 | 1967 | 1990 | 1965 | 1965 | 1966 | 1987 |
| Lowest Mean Temperature (F) | 32.4 | 34.7 | 42.2 | 46.5 | 52.2 | 57.2 | 62.1 | 60.8 | 56.5 | 49.1 | 34.7 | 34.8 | 49.5 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1975 | 1962 | 1976 | 1986 | 1973 | 1972 | 1972 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 33.1 | 34.8 | 36.3 | 39.0 | 43.5 | 49.2 | 51.4 | 51.4 | 47.3 | 41.5 | 36.8 | 33.7 | 41.5 |
| Highest Mean Min. Temperature (F) | 38.0 | 38.5 | 39.9 | 42.6 | 45.7 | 54.1 | 54.1 | 54.2 | 53.9 | 47.7 | 40.8 | 38.7 | 43.4 |
| Year Highest Occurred | 1990 | 1978 | 1984 | 1990 | 1987 | 1969 | 1990 | 1990 | 1990 | 1988 | 1983 | 1966 | 1990 |
| Lowest Mean Min. Temperature (F) | 25.7 | 25.7 | 31.6 | 35.4 | 40.9 | 45.0 | 49.5 | 47.6 | 44.1 | 37.7 | 27.0 | 28.5 | 38.7 |
| Year Lowest Occurred | 1980 | 1989 | 1965 | 1982 | 1966 | 1976 | 1982 | 1973 | 1961 | 1972 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 5.55 | 4.19 | 3.87 | 2.59 | 1.94 | 1.73 | 0.83 | 1.24 | 2.05 | 3.31 | 5.98 | 6.11 | 39.39 |
| Highest Precipitation (in.) | 9.92 | 8.85 | 7.54 | 5.17 | 4.39 | 3.93 | 3.53 | 5.13 | 5.75 | 8.21 | 9.92 | 10.79 | 50.47 |
| Year Highest Occurred | 1964 | 1961 | 1971 | 1972 | 1984 | 1984 | 1983 | 1968 | 1978 | 1975 | 1980 | 1979 | 1968 |
| Lowest Precipitation (in.) | 0.83 | 1.13 | 0.44 | 0.67 | 0.38 | 0.16 | 0.00 | 0.00 | 0.00 | 0.31 | 0.99 | 1.86 | 28.16 |
| Year Lowest Occurred | 1985 | 1988 | 1965 | 1977 | 1967 | 1987 | 1984 | 1967 | 1975 | 1987 | 1976 | 1978 | 1985 |
| Heating Degree Days (F) | 784. | 616. | 598. | 459. | 295. | 137. | 55. | 70. | 168. | 409. | 624. | 781. | 4996. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 17. | 46. | 64. | 12. | 0. | 0. | 0. | 139. |