| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 55.1 | 62.0 | 66.8 | 73.7 | 82.8 | 91.1 | 96.9 | 95.2 | 89.1 | 79.5 | 65.5 | 55.3 | 76.1 |
| Highest Mean Max. Temperature (F) | 63.3 | 68.7 | 73.9 | 81.7 | 88.5 | 98.3 | 101.2 | 99.8 | 94.5 | 85.6 | 71.1 | 62.8 | 79.0 |
| Year Highest Occurred | 1986 | 1988 | 1972 | 1987 | 1984 | 1981 | 1961 | 1967 | 1979 | 1978 | 1986 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 48.4 | 55.1 | 59.6 | 59.2 | 74.3 | 84.7 | 90.2 | 89.3 | 83.1 | 74.6 | 58.3 | 47.1 | 73.1 |
| Year Lowest Occurred | 1972 | 1969 | 1973 | 1967 | 1977 | 1969 | 1987 | 1976 | 1965 | 1969 | 1972 | 1963 | 1963 |
| Mean Temperature (F) | 45.6 | 51.2 | 55.1 | 60.4 | 67.7 | 74.8 | 79.9 | 78.5 | 73.2 | 64.9 | 53.6 | 45.6 | 62.5 |
| Highest Mean Temperature (F) | 52.8 | 56.3 | 60.2 | 67.1 | 72.2 | 79.8 | 83.5 | 83.6 | 77.7 | 69.9 | 56.6 | 52.3 | 63.9 |
| Year Highest Occurred | 1986 | 1963 | 1978 | 1989 | 1973 | 1961 | 1961 | 1967 | 1984 | 1978 | 1967 | 1977 | 1986 |
| Lowest Mean Temperature (F) | 39.4 | 46.3 | 50.7 | 50.4 | 61.5 | 69.9 | 74.1 | 73.8 | 67.4 | 60.4 | 49.3 | 40.5 | 60.4 |
| Year Lowest Occurred | 1972 | 1971 | 1973 | 1967 | 1977 | 1965 | 1987 | 1976 | 1965 | 1969 | 1964 | 1963 | 1971 |
| Mean Min. Temperature (F) | 36.1 | 40.3 | 43.3 | 47.0 | 52.5 | 58.4 | 62.8 | 61.9 | 57.3 | 50.2 | 41.5 | 36.0 | 48.9 |
| Highest Mean Min. Temperature (F) | 43.5 | 46.3 | 49.8 | 52.5 | 56.6 | 63.1 | 67.7 | 67.4 | 61.5 | 54.2 | 45.9 | 44.0 | 51.2 |
| Year Highest Occurred | 1978 | 1963 | 1978 | 1989 | 1973 | 1961 | 1984 | 1967 | 1983 | 1978 | 1967 | 1977 | 1983 |
| Lowest Mean Min. Temperature (F) | 29.6 | 35.5 | 38.3 | 41.2 | 48.6 | 53.1 | 58.0 | 58.3 | 51.7 | 44.0 | 37.1 | 31.1 | 46.6 |
| Year Lowest Occurred | 1963 | 1964 | 1977 | 1970 | 1977 | 1980 | 1987 | 1976 | 1965 | 1981 | 1975 | 1990 | 1975 |
| Mean Precipitation (in.) | 2.47 | 2.27 | 2.40 | 1.30 | 0.42 | 0.13 | 0.02 | 0.05 | 0.38 | 0.70 | 1.73 | 1.90 | 13.77 |
| Highest Precipitation (in.) | 9.92 | 7.61 | 6.76 | 5.89 | 2.63 | 1.66 | 0.10 | 0.67 | 2.78 | 2.21 | 4.25 | 6.23 | 25.57 |
| Year Highest Occurred | 1969 | 1969 | 1978 | 1967 | 1977 | 1969 | 1984 | 1983 | 1978 | 1982 | 1970 | 1966 | 1969 |
| Lowest Precipitation (in.) | 0.01 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 6.54 |
| Year Lowest Occurred | 1976 | 1961 | 1972 | 1977 | 1986 | 1990 | 1990 | 1990 | 1990 | 1990 | 1980 | 1989 | 1961 |
| Heating Degree Days (F) | 601. | 386. | 313. | 198. | 44. | 0. | 0. | 0. | 7. | 85. | 342. | 601. | 2577. |
| Cooling Degree Days (F) | 0. | 0. | 6. | 60. | 128. | 298. | 462. | 419. | 253. | 82. | 0. | 0. | 1708. |