| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 59.2 | 63.7 | 66.4 | 71.9 | 77.6 | 83.5 | 88.3 | 87.6 | 85.4 | 78.4 | 66.6 | 59.3 | 74.0 |
| Highest Mean Max. Temperature (F) | 64.5 | 68.7 | 71.6 | 78.7 | 83.3 | 93.5 | 93.4 | 91.7 | 92.4 | 84.3 | 72.5 | 65.5 | 76.7 |
| Year Highest Occurred | 1976 | 1977 | 1988 | 1987 | 1984 | 1981 | 1961 | 1969 | 1979 | 1990 | 1989 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 55.5 | 57.1 | 61.7 | 59.6 | 72.1 | 76.1 | 83.4 | 84.1 | 76.7 | 72.8 | 57.8 | 54.1 | 72.0 |
| Year Lowest Occurred | 1969 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1987 | 1986 | 1984 | 1985 | 1971 | 1985 |
| Mean Temperature (F) | 47.4 | 51.5 | 54.0 | 57.6 | 62.4 | 67.5 | 70.9 | 70.7 | 68.8 | 62.9 | 53.9 | 47.6 | 59.6 |
| Highest Mean Temperature (F) | 52.5 | 56.9 | 58.8 | 63.4 | 67.0 | 74.6 | 73.2 | 73.5 | 73.6 | 66.8 | 57.4 | 54.0 | 61.7 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1984 | 1981 | 1990 | 1983 | 1984 | 1987 | 1981 | 1977 | 1981 |
| Lowest Mean Temperature (F) | 43.7 | 47.9 | 50.3 | 50.0 | 58.4 | 62.5 | 67.3 | 68.2 | 63.5 | 58.0 | 50.5 | 43.3 | 57.8 |
| Year Lowest Occurred | 1963 | 1969 | 1973 | 1967 | 1964 | 1965 | 1962 | 1970 | 1986 | 1971 | 1985 | 1990 | 1964 |
| Mean Min. Temperature (F) | 35.6 | 39.3 | 41.5 | 43.3 | 47.2 | 51.5 | 53.4 | 53.8 | 52.2 | 47.3 | 41.1 | 35.9 | 45.2 |
| Highest Mean Min. Temperature (F) | 42.5 | 45.7 | 47.9 | 48.7 | 50.9 | 55.6 | 56.8 | 58.0 | 57.3 | 52.9 | 46.0 | 44.8 | 48.9 |
| Year Highest Occurred | 1978 | 1963 | 1989 | 1989 | 1987 | 1981 | 1990 | 1983 | 1983 | 1987 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 29.8 | 30.7 | 36.5 | 37.1 | 43.0 | 47.9 | 49.7 | 50.2 | 47.6 | 41.5 | 35.3 | 28.6 | 42.2 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1970 | 1964 | 1964 | 1962 | 1969 | 1964 | 1971 | 1980 | 1990 | 1964 |
| Mean Precipitation (in.) | 4.03 | 3.19 | 3.23 | 1.50 | 0.24 | 0.11 | 0.07 | 0.07 | 0.35 | 0.86 | 2.91 | 3.21 | 19.77 |
| Highest Precipitation (in.) | 13.33 | 9.66 | 7.74 | 6.70 | 1.70 | 0.91 | 0.80 | 1.00 | 2.67 | 2.41 | 7.50 | 8.40 | 37.76 |
| Year Highest Occurred | 1969 | 1962 | 1983 | 1967 | 1990 | 1967 | 1974 | 1976 | 1976 | 1981 | 1972 | 1964 | 1983 |
| Lowest Precipitation (in.) | 0.21 | 0.12 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 | 0.01 | 9.18 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1977 | 1987 | 1990 | 1989 | 1990 | 1988 | 1990 | 1986 | 1989 | 1989 |
| Heating Degree Days (F) | 546. | 378. | 341. | 240. | 119. | 38. | 0. | 0. | 26. | 108. | 333. | 539. | 2668. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 18. | 39. | 113. | 187. | 179. | 140. | 43. | 0. | 0. | 719. |