| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.6 | 59.4 | 60.8 | 63.9 | 66.5 | 70.3 | 71.6 | 72.3 | 73.6 | 70.1 | 62.4 | 56.1 | 65.2 |
| Highest Mean Max. Temperature (F) | 59.6 | 64.1 | 66.4 | 70.5 | 72.8 | 76.5 | 76.2 | 76.1 | 81.3 | 74.4 | 66.8 | 60.0 | 67.3 |
| Year Highest Occurred | 1986 | 1988 | 1988 | 1989 | 1984 | 1981 | 1984 | 1983 | 1984 | 1967 | 1986 | 1969 | 1988 |
| Lowest Mean Max. Temperature (F) | 52.3 | 53.9 | 57.5 | 57.4 | 61.7 | 65.9 | 67.0 | 68.8 | 69.8 | 66.6 | 57.9 | 51.5 | 63.3 |
| Year Lowest Occurred | 1985 | 1962 | 1962 | 1967 | 1961 | 1965 | 1962 | 1973 | 1989 | 1971 | 1982 | 1965 | 1965 |
| Mean Temperature (F) | 48.7 | 52.2 | 53.3 | 55.6 | 58.1 | 61.5 | 62.7 | 63.7 | 64.5 | 61.0 | 54.8 | 49.4 | 57.1 |
| Highest Mean Temperature (F) | 53.7 | 58.5 | 57.2 | 60.8 | 62.0 | 65.7 | 65.6 | 66.9 | 71.8 | 63.9 | 57.8 | 54.3 | 58.7 |
| Year Highest Occurred | 1986 | 1963 | 1984 | 1989 | 1984 | 1961 | 1984 | 1983 | 1984 | 1987 | 1967 | 1981 | 1987 |
| Lowest Mean Temperature (F) | 45.6 | 48.4 | 50.3 | 50.6 | 55.3 | 58.3 | 59.6 | 60.7 | 61.1 | 57.0 | 51.6 | 44.9 | 55.4 |
| Year Lowest Occurred | 1972 | 1989 | 1962 | 1975 | 1965 | 1965 | 1962 | 1973 | 1965 | 1971 | 1964 | 1972 | 1975 |
| Mean Min. Temperature (F) | 41.8 | 45.0 | 45.8 | 47.2 | 49.7 | 52.6 | 53.9 | 55.0 | 55.2 | 51.8 | 47.1 | 42.7 | 49.0 |
| Highest Mean Min. Temperature (F) | 47.8 | 53.6 | 50.9 | 51.0 | 53.1 | 55.4 | 56.4 | 58.5 | 62.3 | 55.1 | 50.3 | 49.1 | 51.4 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1987 | 1961 | 1990 | 1990 | 1984 | 1987 | 1981 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | 36.0 | 40.0 | 42.9 | 43.5 | 46.5 | 50.7 | 51.4 | 52.5 | 51.9 | 47.3 | 43.5 | 38.0 | 47.1 |
| Year Lowest Occurred | 1963 | 1964 | 1976 | 1975 | 1965 | 1965 | 1981 | 1973 | 1965 | 1971 | 1975 | 1978 | 1975 |
| Mean Precipitation (in.) | 4.35 | 3.17 | 3.06 | 1.37 | 0.19 | 0.11 | 0.03 | 0.05 | 0.20 | 1.22 | 2.86 | 3.09 | 19.70 |
| Highest Precipitation (in.) | 10.43 | 8.62 | 8.50 | 5.31 | 1.55 | 0.86 | 0.35 | 0.66 | 1.24 | 7.30 | 7.94 | 6.23 | 38.34 |
| Year Highest Occurred | 1967 | 1969 | 1983 | 1967 | 1990 | 1967 | 1977 | 1976 | 1989 | 1962 | 1973 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.37 | 0.09 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.01 | 9.80 |
| Year Lowest Occurred | 1976 | 1967 | 1988 | 1977 | 1984 | 1990 | 1989 | 1990 | 1987 | 1978 | 1986 | 1989 | 1971 |
| Heating Degree Days (F) | 505. | 358. | 363. | 287. | 218. | 121. | 92. | 68. | 79. | 135. | 306. | 484. | 3016. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 5. | 0. | 16. | 21. | 28. | 64. | 11. | 0. | 0. | 145. |