| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 53.0 | 60.4 | 65.1 | 71.4 | 78.9 | 85.7 | 90.8 | 89.6 | 85.7 | 77.5 | 63.9 | 53.6 | 73.0 |
| Highest Mean Max. Temperature (F) | 59.7 | 66.0 | 70.2 | 78.2 | 84.4 | 94.2 | 96.6 | 93.7 | 92.6 | 83.2 | 69.3 | 59.8 | 74.8 |
| Year Highest Occurred | 1976 | 1963 | 1984 | 1966 | 1984 | 1981 | 1961 | 1969 | 1984 | 1964 | 1986 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 47.0 | 54.6 | 60.3 | 59.4 | 71.6 | 79.1 | 85.3 | 84.4 | 79.2 | 69.3 | 57.2 | 45.8 | 69.9 |
| Year Lowest Occurred | 1972 | 1969 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1972 | 1972 | 1982 | 1963 | 1972 |
| Mean Temperature (F) | 44.5 | 50.2 | 54.0 | 58.5 | 64.7 | 70.6 | 73.8 | 73.0 | 70.1 | 63.4 | 53.3 | 45.1 | 60.1 |
| Highest Mean Temperature (F) | 51.0 | 56.2 | 58.2 | 64.2 | 70.4 | 77.9 | 79.8 | 76.2 | 76.1 | 68.2 | 58.1 | 49.9 | 62.4 |
| Year Highest Occurred | 1986 | 1963 | 1984 | 1987 | 1984 | 1981 | 1988 | 1990 | 1984 | 1990 | 1986 | 1983 | 1988 |
| Lowest Mean Temperature (F) | 39.0 | 46.8 | 50.9 | 49.5 | 59.7 | 65.5 | 70.4 | 69.6 | 64.8 | 58.0 | 48.6 | 40.0 | 57.4 |
| Year Lowest Occurred | 1972 | 1969 | 1985 | 1967 | 1977 | 1965 | 1966 | 1970 | 1972 | 1971 | 1982 | 1972 | 1972 |
| Mean Min. Temperature (F) | 35.9 | 40.0 | 42.8 | 45.6 | 50.4 | 55.4 | 56.8 | 56.3 | 54.4 | 49.2 | 42.7 | 36.6 | 47.2 |
| Highest Mean Min. Temperature (F) | 43.5 | 46.3 | 48.5 | 51.9 | 56.4 | 61.6 | 63.4 | 61.8 | 59.6 | 56.1 | 47.7 | 43.8 | 50.4 |
| Year Highest Occurred | 1986 | 1963 | 1986 | 1990 | 1984 | 1981 | 1988 | 1990 | 1984 | 1987 | 1988 | 1983 | 1987 |
| Lowest Mean Min. Temperature (F) | 29.1 | 35.4 | 38.6 | 39.5 | 45.0 | 50.9 | 53.2 | 51.8 | 49.4 | 42.4 | 38.5 | 31.0 | 44.7 |
| Year Lowest Occurred | 1963 | 1964 | 1962 | 1967 | 1964 | 1982 | 1962 | 1970 | 1965 | 1971 | 1971 | 1976 | 1975 |
| Mean Precipitation (in.) | 2.56 | 2.05 | 1.97 | 0.88 | 0.28 | 0.10 | 0.04 | 0.06 | 0.23 | 0.86 | 1.92 | 1.85 | 12.80 |
| Highest Precipitation (in.) | 6.31 | 7.30 | 6.26 | 3.50 | 2.03 | 0.80 | 0.46 | 0.74 | 1.84 | 4.85 | 4.83 | 4.10 | 27.75 |
| Year Highest Occurred | 1969 | 1986 | 1983 | 1963 | 1977 | 1964 | 1980 | 1976 | 1989 | 1962 | 1970 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.13 | 0.01 | 0.06 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.87 |
| Year Lowest Occurred | 1984 | 1964 | 1972 | 1962 | 1985 | 1990 | 1990 | 1990 | 1990 | 1980 | 1986 | 1989 | 1976 |
| Heating Degree Days (F) | 636. | 414. | 341. | 227. | 92. | 25. | 5. | 0. | 18. | 111. | 351. | 617. | 2837. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 32. | 82. | 193. | 278. | 248. | 171. | 62. | 0. | 0. | 1066. |