| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 44.9 | 49.5 | 53.5 | 59.0 | 66.0 | 72.1 | 78.0 | 78.3 | 72.9 | 63.3 | 51.4 | 45.0 | 61.2 |
| Highest Mean Max. Temperature (F) | 52.1 | 55.5 | 61.1 | 66.5 | 70.9 | 79.2 | 85.4 | 86.5 | 79.7 | 72.9 | 57.4 | 51.1 | 64.6 |
| Year Highest Occurred | 1981 | 1968 | 1986 | 1987 | 1983 | 1961 | 1985 | 1967 | 1974 | 1987 | 1976 | 1980 | 1987 |
| Lowest Mean Max. Temperature (F) | 37.1 | 41.8 | 48.0 | 53.4 | 58.6 | 66.5 | 72.3 | 71.5 | 67.0 | 57.1 | 41.6 | 38.6 | 58.8 |
| Year Lowest Occurred | 1969 | 1989 | 1971 | 1970 | 1962 | 1971 | 1963 | 1975 | 1978 | 1975 | 1985 | 1983 | 1964 |
| Mean Temperature (F) | 39.5 | 42.7 | 45.3 | 49.3 | 55.0 | 60.5 | 65.1 | 65.7 | 61.5 | 54.1 | 45.2 | 39.8 | 52.0 |
| Highest Mean Temperature (F) | 46.1 | 48.0 | 51.3 | 54.1 | 58.6 | 64.7 | 69.9 | 71.6 | 65.6 | 59.0 | 49.3 | 44.4 | 54.1 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1987 | 1983 | 1961 | 1985 | 1967 | 1967 | 1987 | 1976 | 1979 | 1987 |
| Lowest Mean Temperature (F) | 32.2 | 35.0 | 41.1 | 44.9 | 50.7 | 56.5 | 62.1 | 61.2 | 57.8 | 50.6 | 36.5 | 33.5 | 50.4 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1962 | 1971 | 1963 | 1975 | 1972 | 1971 | 1985 | 1990 | 1971 |
| Mean Min. Temperature (F) | 33.9 | 35.8 | 37.1 | 39.5 | 43.9 | 48.9 | 52.1 | 53.0 | 50.0 | 44.7 | 39.1 | 34.6 | 42.7 |
| Highest Mean Min. Temperature (F) | 40.1 | 41.0 | 41.4 | 42.9 | 46.4 | 52.3 | 54.3 | 56.7 | 53.9 | 48.1 | 42.8 | 39.3 | 44.2 |
| Year Highest Occurred | 1981 | 1963 | 1986 | 1990 | 1987 | 1969 | 1985 | 1967 | 1963 | 1988 | 1965 | 1973 | 1986 |
| Lowest Mean Min. Temperature (F) | 27.1 | 28.1 | 34.0 | 36.0 | 41.5 | 46.1 | 49.7 | 50.5 | 46.1 | 40.7 | 31.3 | 27.6 | 40.8 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1964 | 1962 | 1962 | 1973 | 1961 | 1972 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 11.00 | 8.74 | 8.36 | 6.67 | 5.04 | 3.81 | 1.54 | 2.18 | 4.02 | 6.09 | 10.49 | 11.55 | 79.49 |
| Highest Precipitation (in.) | 19.54 | 19.60 | 12.75 | 11.17 | 9.98 | 9.22 | 6.56 | 7.15 | 7.72 | 13.30 | 18.26 | 17.89 | 99.78 |
| Year Highest Occurred | 1970 | 1961 | 1989 | 1972 | 1977 | 1984 | 1983 | 1968 | 1973 | 1990 | 1973 | 1964 | 1971 |
| Lowest Precipitation (in.) | 0.39 | 3.36 | 2.54 | 2.72 | 1.95 | 0.81 | 0.00 | 0.02 | 0.00 | 0.31 | 2.13 | 2.86 | 58.70 |
| Year Lowest Occurred | 1985 | 1973 | 1965 | 1977 | 1982 | 1987 | 1984 | 1970 | 1975 | 1987 | 1976 | 1985 | 1987 |
| Heating Degree Days (F) | 791. | 624. | 611. | 471. | 310. | 153. | 59. | 73. | 142. | 338. | 594. | 781. | 4947. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 18. | 62. | 95. | 37. | 0. | 0. | 0. | 212. |