| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 56.7 | 61.8 | 64.9 | 70.7 | 77.0 | 83.9 | 89.8 | 89.2 | 86.0 | 78.1 | 65.1 | 56.6 | 73.3 |
| Highest Mean Max. Temperature (F) | 62.6 | 67.3 | 72.4 | 77.8 | 82.5 | 93.3 | 94.6 | 96.9 | 93.0 | 83.8 | 71.2 | 63.1 | 74.9 |
| Year Highest Occurred | 1976 | 1977 | 1972 | 1977 | 1984 | 1981 | 1961 | 1969 | 1984 | 1978 | 1986 | 1976 | 1976 |
| Lowest Mean Max. Temperature (F) | 52.7 | 56.1 | 59.8 | 57.6 | 70.3 | 76.2 | 81.9 | 83.6 | 79.4 | 73.0 | 59.3 | 50.8 | 70.7 |
| Year Lowest Occurred | 1982 | 1969 | 1962 | 1967 | 1977 | 1982 | 1987 | 1976 | 1986 | 1962 | 1982 | 1963 | 1982 |
| Mean Temperature (F) | 46.1 | 50.4 | 52.7 | 56.6 | 61.9 | 67.7 | 71.6 | 71.4 | 69.0 | 62.7 | 53.0 | 46.3 | 59.1 |
| Highest Mean Temperature (F) | 51.7 | 55.4 | 57.7 | 62.4 | 66.4 | 74.6 | 76.1 | 75.1 | 73.8 | 66.3 | 56.8 | 51.5 | 61.0 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1987 | 1987 | 1981 | 1988 | 1967 | 1984 | 1987 | 1967 | 1977 | 1988 |
| Lowest Mean Temperature (F) | 42.3 | 46.8 | 49.1 | 49.1 | 56.9 | 63.3 | 68.1 | 67.9 | 63.8 | 59.6 | 49.4 | 40.4 | 57.0 |
| Year Lowest Occurred | 1961 | 1966 | 1962 | 1967 | 1977 | 1965 | 1987 | 1976 | 1986 | 1971 | 1982 | 1963 | 1963 |
| Mean Min. Temperature (F) | 35.5 | 39.0 | 40.5 | 42.5 | 46.8 | 51.3 | 53.4 | 53.5 | 52.0 | 47.2 | 40.9 | 36.0 | 44.9 |
| Highest Mean Min. Temperature (F) | 42.7 | 45.1 | 46.0 | 48.6 | 53.1 | 55.8 | 58.8 | 59.3 | 56.0 | 53.4 | 45.6 | 43.3 | 47.9 |
| Year Highest Occurred | 1986 | 1963 | 1989 | 1989 | 1987 | 1981 | 1988 | 1990 | 1967 | 1987 | 1981 | 1964 | 1988 |
| Lowest Mean Min. Temperature (F) | 30.0 | 32.0 | 35.7 | 38.1 | 40.5 | 47.6 | 49.7 | 50.1 | 48.2 | 41.8 | 35.6 | 29.0 | 42.7 |
| Year Lowest Occurred | 1963 | 1964 | 1964 | 1975 | 1964 | 1964 | 1977 | 1972 | 1986 | 1971 | 1978 | 1978 | 1975 |
| Mean Precipitation (in.) | 2.71 | 2.28 | 2.24 | 1.12 | 0.26 | 0.08 | 0.04 | 0.08 | 0.24 | 0.86 | 2.16 | 2.14 | 14.21 |
| Highest Precipitation (in.) | 6.28 | 7.11 | 6.14 | 4.65 | 1.78 | 0.48 | 0.70 | 0.91 | 1.48 | 3.64 | 5.44 | 5.27 | 32.37 |
| Year Highest Occurred | 1983 | 1986 | 1983 | 1967 | 1990 | 1967 | 1980 | 1976 | 1982 | 1962 | 1983 | 1970 | 1983 |
| Lowest Precipitation (in.) | 0.30 | 0.08 | 0.14 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.10 | 6.40 |
| Year Lowest Occurred | 1976 | 1964 | 1972 | 1987 | 1982 | 1990 | 1989 | 1990 | 1988 | 1978 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 586. | 409. | 381. | 271. | 140. | 43. | 9. | 0. | 21. | 109. | 360. | 580. | 2909. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 19. | 44. | 124. | 213. | 202. | 141. | 37. | 0. | 0. | 780. |