| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.2 | 57.1 | 59.6 | 65.7 | 74.4 | 83.4 | 91.2 | 90.6 | 84.6 | 74.1 | 60.2 | 53.3 | 70.6 |
| Highest Mean Max. Temperature (F) | 63.5 | 66.9 | 68.0 | 77.5 | 80.5 | 91.6 | 98.5 | 96.4 | 92.7 | 84.1 | 71.0 | 61.2 | 75.6 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1987 | 1987 | 1985 | 1988 | 1986 | 1984 | 1988 | 1986 | 1985 | 1988 |
| Lowest Mean Max. Temperature (F) | 48.2 | 47.8 | 54.2 | 50.8 | 64.7 | 73.2 | 83.7 | 81.4 | 78.2 | 67.2 | 53.7 | 45.7 | 67.3 |
| Year Lowest Occurred | 1982 | 1969 | 1973 | 1967 | 1977 | 1983 | 1983 | 1976 | 1965 | 1969 | 1972 | 1971 | 1982 |
| Mean Temperature (F) | 42.3 | 45.6 | 48.0 | 52.7 | 59.7 | 67.4 | 73.6 | 73.1 | 67.7 | 59.0 | 48.4 | 42.6 | 56.7 |
| Highest Mean Temperature (F) | 50.2 | 51.0 | 54.1 | 61.2 | 65.5 | 73.3 | 80.0 | 78.6 | 73.6 | 66.8 | 53.9 | 47.2 | 60.3 |
| Year Highest Occurred | 1986 | 1988 | 1986 | 1987 | 1987 | 1981 | 1988 | 1967 | 1984 | 1987 | 1986 | 1989 | 1988 |
| Lowest Mean Temperature (F) | 38.4 | 40.0 | 44.4 | 42.6 | 52.9 | 60.2 | 66.1 | 66.3 | 61.5 | 53.5 | 43.0 | 37.6 | 53.9 |
| Year Lowest Occurred | 1972 | 1969 | 1977 | 1967 | 1977 | 1983 | 1983 | 1976 | 1965 | 1969 | 1982 | 1972 | 1982 |
| Mean Min. Temperature (F) | 31.4 | 34.0 | 36.4 | 39.6 | 44.9 | 51.3 | 55.9 | 55.6 | 50.8 | 43.9 | 36.5 | 31.9 | 42.7 |
| Highest Mean Min. Temperature (F) | 37.8 | 39.8 | 42.5 | 47.5 | 50.4 | 56.5 | 61.5 | 61.2 | 55.5 | 51.3 | 40.3 | 38.8 | 45.4 |
| Year Highest Occurred | 1978 | 1963 | 1989 | 1989 | 1987 | 1981 | 1988 | 1967 | 1990 | 1990 | 1988 | 1983 | 1989 |
| Lowest Mean Min. Temperature (F) | 24.6 | 28.4 | 29.9 | 34.1 | 40.8 | 46.7 | 48.4 | 51.2 | 44.7 | 39.4 | 30.9 | 26.9 | 40.3 |
| Year Lowest Occurred | 1985 | 1966 | 1985 | 1983 | 1985 | 1965 | 1983 | 1976 | 1965 | 1981 | 1982 | 1965 | 1965 |
| Mean Precipitation (in.) | 6.68 | 5.32 | 5.51 | 3.01 | 0.96 | 0.32 | 0.20 | 0.19 | 0.86 | 2.29 | 5.65 | 5.75 | 36.74 |
| Highest Precipitation (in.) | 16.57 | 18.87 | 14.43 | 8.97 | 4.00 | 1.56 | 3.62 | 1.57 | 8.09 | 11.39 | 13.13 | 18.32 | 74.55 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1967 | 1964 | 1967 | 1974 | 1976 | 1989 | 1962 | 1983 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.42 | 0.57 | 1.06 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.86 | 0.00 | 11.85 |
| Year Lowest Occurred | 1984 | 1988 | 1988 | 1985 | 1985 | 1990 | 1989 | 1990 | 1988 | 1988 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 704. | 543. | 527. | 386. | 194. | 68. | 17. | 9. | 65. | 225. | 498. | 694. | 3930. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 17. | 30. | 140. | 284. | 260. | 146. | 39. | 0. | 0. | 916. |