| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Mean Max. Temperature (F) | 51.2 | 56.5 | 63.6 | 73.3 | 81.3 | 90.4 | 91.2 | 87.8 | 82.0 | 73.2 | 61.1 | 52.5 | 72.0 |
| Highest Mean Max. Temperature (F) | 57.7 | 62.2 | 73.7 | 82.7 | 89.5 | 98.0 | 95.3 | 92.6 | 85.7 | 80.2 | 66.5 | 58.5 | 76.4 |
| Year Highest Occurred | 1986 | 1962 | 1989 | 1989 | 1989 | 1990 | 1978 | 1962 | 1983 | 1988 | 1973 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 44.6 | 46.8 | 57.0 | 63.1 | 76.3 | 85.6 | 87.0 | 84.6 | 77.8 | 65.2 | 54.4 | 46.2 | 70.1 |
| Year Lowest Occurred | 1979 | 1964 | 1969 | 1983 | 1979 | 1986 | 1986 | 1984 | 1974 | 1984 | 1972 | 1982 | 1983 |
| Mean Temperature (F) | 37.0 | 41.5 | 47.9 | 56.2 | 64.1 | 73.0 | 76.0 | 73.1 | 67.2 | 57.1 | 46.0 | 38.0 | 56.4 |
| Highest Mean Temperature (F) | 43.7 | 47.7 | 55.7 | 62.2 | 69.1 | 79.2 | 79.3 | 76.4 | 70.8 | 64.9 | 50.4 | 43.2 | 58.2 |
| Year Highest Occurred | 1969 | 1988 | 1974 | 1989 | 1989 | 1990 | 1980 | 1969 | 1983 | 1987 | 1965 | 1977 | 1989 |
| Lowest Mean Temperature (F) | 32.2 | 32.2 | 41.4 | 48.8 | 59.8 | 69.4 | 72.8 | 70.8 | 64.7 | 52.2 | 40.5 | 34.7 | 54.6 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1983 | 1987 | 1987 | 1987 | 1979 | 1988 | 1976 | 1979 | 1982 | 1979 |
| Mean Min. Temperature (F) | 22.8 | 26.6 | 32.1 | 39.2 | 46.8 | 55.6 | 60.6 | 58.4 | 52.4 | 41.0 | 30.8 | 23.4 | 40.8 |
| Highest Mean Min. Temperature (F) | 30.4 | 33.7 | 39.8 | 43.8 | 51.0 | 60.4 | 63.5 | 61.4 | 55.8 | 51.4 | 37.9 | 28.6 | 42.7 |
| Year Highest Occurred | 1969 | 1988 | 1974 | 1967 | 1974 | 1990 | 1980 | 1969 | 1983 | 1987 | 1978 | 1977 | 1974 |
| Lowest Mean Min. Temperature (F) | 15.6 | 17.5 | 25.8 | 32.2 | 43.1 | 50.5 | 53.5 | 56.3 | 47.0 | 36.3 | 25.0 | 16.8 | 38.3 |
| Year Lowest Occurred | 1964 | 1964 | 1969 | 1987 | 1987 | 1987 | 1987 | 1987 | 1988 | 1976 | 1979 | 1989 | 1987 |
| Mean Precipitation (in.) | 0.60 | 0.57 | 0.57 | 0.36 | 0.62 | 0.78 | 2.05 | 2.69 | 1.88 | 1.19 | 0.76 | 0.76 | 12.83 |
| Highest Precipitation (in.) | 2.81 | 1.51 | 1.75 | 1.47 | 1.98 | 2.51 | 5.37 | 5.21 | 6.26 | 4.84 | 3.08 | 1.84 | 19.89 |
| Year Highest Occurred | 1978 | 1990 | 1973 | 1977 | 1976 | 1986 | 1962 | 1966 | 1965 | 1985 | 1978 | 1990 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.03 | 0.00 | 0.00 | 0.00 | 0.09 | 0.40 | 0.00 | 0.18 | 0.00 | 0.00 | 0.00 | 6.56 |
| Year Lowest Occurred | 1976 | 1984 | 1971 | 1989 | 1975 | 1977 | 1978 | 1978 | 1970 | 1989 | 1989 | 1976 | 1964 |
| Heating Degree Days (F) | 868. | 658. | 530. | 276. | 91. | 0. | 0. | 0. | 20. | 255. | 570. | 837. | 4105. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 12. | 63. | 245. | 341. | 251. | 86. | 10. | 0. | 0. | 1008. |