| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 66.8 | 66.6 | 66.4 | 66.7 | 68.3 | 69.9 | 70.8 | 72.1 | 72.2 | 71.2 | 69.0 | 67.1 | 68.9 |
| Highest Mean Max. Temperature (F) | 70.7 | 71.0 | 72.9 | 70.4 | 71.4 | 73.4 | 74.1 | 75.8 | 75.9 | 74.7 | 73.6 | 71.4 | 71.5 |
| Year Highest Occurred | 1983 | 1983 | 1986 | 1981 | 1986 | 1981 | 1981 | 1986 | 1979 | 1984 | 1983 | 1983 | 1986 |
| Lowest Mean Max. Temperature (F) | 63.1 | 61.4 | 62.2 | 62.8 | 65.2 | 66.8 | 68.6 | 69.1 | 69.0 | 68.4 | 66.1 | 62.2 | 66.6 |
| Year Lowest Occurred | 1972 | 1990 | 1977 | 1969 | 1964 | 1975 | 1972 | 1963 | 1964 | 1964 | 1961 | 1970 | 1975 |
| Mean Temperature (F) | 58.3 | 58.1 | 58.4 | 59.2 | 60.4 | 61.8 | 62.9 | 63.7 | 63.6 | 62.9 | 61.1 | 59.1 | 60.8 |
| Highest Mean Temperature (F) | 60.8 | 62.1 | 62.6 | 61.2 | 62.5 | 63.8 | 64.8 | 66.5 | 66.0 | 65.0 | 63.4 | 61.3 | 62.6 |
| Year Highest Occurred | 1974 | 1963 | 1986 | 1980 | 1988 | 1982 | 1986 | 1986 | 1987 | 1984 | 1988 | 1980 | 1986 |
| Lowest Mean Temperature (F) | 56.3 | 54.9 | 56.1 | 56.6 | 57.7 | 59.2 | 60.7 | 61.8 | 61.3 | 61.0 | 58.9 | 56.5 | 59.0 |
| Year Lowest Occurred | 1972 | 1965 | 1975 | 1976 | 1975 | 1976 | 1975 | 1975 | 1975 | 1975 | 1962 | 1971 | 1975 |
| Mean Min. Temperature (F) | 49.7 | 49.5 | 50.3 | 51.6 | 52.4 | 53.7 | 54.9 | 55.1 | 54.9 | 54.5 | 53.1 | 51.0 | 52.6 |
| Highest Mean Min. Temperature (F) | 52.7 | 53.6 | 54.0 | 53.6 | 54.9 | 55.3 | 56.8 | 57.4 | 57.1 | 56.6 | 56.8 | 53.6 | 53.9 |
| Year Highest Occurred | 1990 | 1963 | 1963 | 1963 | 1965 | 1968 | 1986 | 1978 | 1986 | 1989 | 1990 | 1964 | 1968 |
| Lowest Mean Min. Temperature (F) | 46.4 | 45.5 | 45.1 | 49.4 | 49.5 | 50.3 | 52.4 | 52.6 | 52.6 | 51.7 | 50.4 | 47.9 | 49.9 |
| Year Lowest Occurred | 1983 | 1978 | 1983 | 1983 | 1983 | 1983 | 1975 | 1962 | 1975 | 1962 | 1983 | 1977 | 1983 |
| Mean Precipitation (in.) | 10.99 | 9.80 | 13.72 | 12.20 | 8.13 | 4.67 | 6.37 | 6.12 | 5.36 | 6.51 | 12.98 | 12.11 | 108.96 |
| Highest Precipitation (in.) | 34.64 | 54.62 | 70.36 | 33.91 | 23.35 | 8.85 | 20.98 | 19.85 | 14.18 | 17.70 | 46.70 | 34.26 | 183.34 |
| Year Highest Occurred | 1975 | 1979 | 1980 | 1986 | 1964 | 1980 | 1989 | 1982 | 1990 | 1961 | 1990 | 1970 | 1990 |
| Lowest Precipitation (in.) | 0.66 | 0.72 | 1.02 | 3.10 | 3.88 | 1.32 | 1.89 | 1.79 | 1.63 | 1.99 | 2.14 | 1.84 | 61.05 |
| Year Lowest Occurred | 1983 | 1983 | 1983 | 1990 | 1979 | 1971 | 1973 | 1973 | 1984 | 1969 | 1989 | 1963 | 1962 |
| Heating Degree Days (F) | 208. | 196. | 205. | 174. | 147. | 101. | 75. | 61. | 60. | 77. | 120. | 185. | 1609. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 10. | 21. | 18. | 12. | 0. | 0. | 61. |