| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 67.1 | 67.8 | 67.3 | 70.5 | 72.1 | 76.0 | 81.3 | 82.5 | 81.4 | 78.2 | 71.9 | 67.4 | 73.6 |
| Highest Mean Max. Temperature (F) | 73.8 | 73.0 | 74.4 | 75.7 | 80.6 | 83.4 | 88.5 | 88.3 | 90.5 | 83.0 | 78.1 | 74.6 | 77.1 |
| Year Highest Occurred | 1986 | 1977 | 1984 | 1989 | 1984 | 1981 | 1985 | 1983 | 1984 | 1965 | 1976 | 1980 | 1984 |
| Lowest Mean Max. Temperature (F) | 62.5 | 59.9 | 61.9 | 62.1 | 67.8 | 69.2 | 76.2 | 78.5 | 77.2 | 74.4 | 68.0 | 60.6 | 71.1 |
| Year Lowest Occurred | 1979 | 1962 | 1973 | 1967 | 1980 | 1965 | 1987 | 1975 | 1973 | 1974 | 1962 | 1971 | 1975 |
| Mean Temperature (F) | 55.2 | 56.0 | 56.3 | 59.1 | 62.3 | 66.0 | 70.5 | 71.8 | 70.3 | 66.2 | 59.8 | 55.5 | 62.4 |
| Highest Mean Temperature (F) | 62.0 | 60.5 | 61.5 | 65.1 | 67.8 | 72.0 | 76.6 | 76.8 | 78.5 | 70.7 | 64.0 | 60.6 | 65.4 |
| Year Highest Occurred | 1986 | 1982 | 1988 | 1989 | 1984 | 1981 | 1984 | 1983 | 1984 | 1983 | 1976 | 1980 | 1984 |
| Lowest Mean Temperature (F) | 51.5 | 51.6 | 51.3 | 51.2 | 58.3 | 61.4 | 66.8 | 66.7 | 66.9 | 62.6 | 56.6 | 50.2 | 59.6 |
| Year Lowest Occurred | 1973 | 1975 | 1962 | 1967 | 1977 | 1967 | 1965 | 1975 | 1964 | 1975 | 1971 | 1971 | 1975 |
| Mean Min. Temperature (F) | 43.1 | 44.2 | 45.2 | 47.8 | 52.4 | 55.9 | 59.6 | 61.1 | 59.2 | 54.2 | 47.7 | 43.5 | 51.2 |
| Highest Mean Min. Temperature (F) | 50.1 | 52.4 | 49.3 | 54.4 | 57.0 | 60.6 | 65.3 | 65.9 | 66.5 | 60.6 | 51.9 | 48.9 | 53.8 |
| Year Highest Occurred | 1986 | 1982 | 1986 | 1989 | 1987 | 1981 | 1984 | 1984 | 1984 | 1987 | 1989 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 38.8 | 40.0 | 39.9 | 40.3 | 48.1 | 51.2 | 56.5 | 54.8 | 55.3 | 49.2 | 43.9 | 39.8 | 47.9 |
| Year Lowest Occurred | 1972 | 1966 | 1962 | 1967 | 1977 | 1967 | 1966 | 1975 | 1970 | 1975 | 1975 | 1971 | 1975 |
| Mean Precipitation (in.) | 2.50 | 2.16 | 2.39 | 1.08 | 0.25 | 0.11 | 0.03 | 0.12 | 0.36 | 0.39 | 1.73 | 1.92 | 13.04 |
| Highest Precipitation (in.) | 10.40 | 9.13 | 8.28 | 5.01 | 2.45 | 0.66 | 0.21 | 1.78 | 2.57 | 2.63 | 7.40 | 5.98 | 28.36 |
| Year Highest Occurred | 1980 | 1980 | 1983 | 1965 | 1977 | 1990 | 1987 | 1977 | 1963 | 1987 | 1965 | 1966 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 3.80 |
| Year Lowest Occurred | 1976 | 1967 | 1972 | 1979 | 1988 | 1989 | 1990 | 1989 | 1988 | 1988 | 1980 | 1989 | 1989 |
| Heating Degree Days (F) | 308. | 259. | 276. | 203. | 121. | 65. | 17. | 9. | 25. | 50. | 169. | 300. | 1802. |
| Cooling Degree Days (F) | 0. | 7. | 6. | 26. | 37. | 95. | 187. | 220. | 184. | 87. | 13. | 6. | 868. |