| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.1 | 39.1 | 44.4 | 51.2 | 60.4 | 69.0 | 75.4 | 75.6 | 70.3 | 61.2 | 52.8 | 44.4 | 56.9 |
| Highest Mean Max. Temperature (F) | 45.7 | 45.4 | 50.1 | 55.0 | 66.5 | 73.8 | 79.2 | 79.7 | 77.3 | 70.3 | 58.3 | 50.6 | 79.7 |
| Year Highest Occurred | 1990 | 1998 | 2000 | 1999 | 1991 | 1999 | 1999 | 1975 | 1971 | 1971 | 1975 | 1984 | 1975 |
| Lowest Mean Max. Temperature (F) | 29.8 | 30.4 | 38.3 | 47.5 | 57.1 | 62.7 | 71.3 | 70.7 | 66.6 | 56.2 | 48.0 | 32.9 | 29.8 |
| Year Lowest Occurred | 1981 | 1979 | 1984 | 1982 | 1997 | 1982 | 1986 | 1982 | 1982 | 1981 | 1976 | 1989 | 1981 |
| Mean Temperature (F) | 32.1 | 32.4 | 37.7 | 44.7 | 53.3 | 62.1 | 68.9 | 69.1 | 63.1 | 54.2 | 45.9 | 37.4 | 50.1 |
| Highest Mean Temperature (F) | 39.5 | 39.5 | 42.8 | 48.1 | 58.0 | 66.7 | 72.7 | 72.2 | 69.5 | 62.4 | 50.6 | 42.9 | 72.7 |
| Year Highest Occurred | 1990 | 1998 | 2000 | 1999 | 1991 | 1999 | 1999 | 1978 | 1971 | 1971 | 1975 | 1984 | 1999 |
| Lowest Mean Temperature (F) | 22.7 | 24.6 | 32.9 | 40.5 | 50.4 | 57.7 | 65.4 | 65.5 | 59.7 | 49.0 | 40.4 | 25.3 | 22.7 |
| Year Lowest Occurred | 1981 | 1979 | 1984 | 1972 | 1972 | 1974 | 1972 | 1982 | 1978 | 1972 | 1976 | 1989 | 1981 |
| Mean Min. Temperature (F) | 25.1 | 25.7 | 31.0 | 38.1 | 46.2 | 55.2 | 62.4 | 62.6 | 55.9 | 47.2 | 38.9 | 30.3 | 43.2 |
| Highest Mean Min. Temperature (F) | 33.5 | 33.6 | 35.5 | 41.2 | 51.2 | 59.6 | 66.2 | 66.8 | 61.6 | 54.5 | 43.2 | 37.2 | 66.8 |
| Year Highest Occurred | 1995 | 1998 | 2000 | 1999 | 1979 | 1999 | 1994 | 1978 | 1971 | 1971 | 1979 | 1996 | 1978 |
| Lowest Mean Min. Temperature (F) | 15.7 | 18.8 | 26.7 | 32.3 | 42.5 | 51.8 | 58.5 | 57.5 | 51.7 | 39.8 | 32.9 | 17.7 | 15.7 |
| Year Lowest Occurred | 1981 | 1979 | 1975 | 1972 | 1974 | 1974 | 1972 | 1972 | 1978 | 1972 | 1976 | 1989 | 1981 |
| Mean Precipitation (in.) | 4.12 | 2.71 | 3.47 | 3.29 | 3.07 | 2.61 | 2.03 | 2.74 | 2.71 | 2.98 | 3.96 | 3.74 | 37.43 |
| Highest Precipitation (in.) | 7.37 | 4.91 | 6.34 | 7.24 | 6.61 | 7.39 | 6.35 | 4.97 | 9.49 | 6.46 | 8.78 | 6.89 | 9.49 |
| Year Highest Occurred | 1978 | 1984 | 1972 | 1973 | 1984 | 1982 | 1978 | 1991 | 1972 | 1977 | 1983 | 1981 | 1972 |
| Lowest Precipitation (in.) | 1.06 | 0.48 | 0.67 | 0.84 | 0.92 | 0.25 | 0.07 | 0.85 | 0.07 | 0.59 | 2.06 | 1.11 | 0.07 |
| Year Lowest Occurred | 1985 | 1987 | 1981 | 1999 | 1993 | 1971 | 1974 | 1976 | 1971 | 1994 | 1998 | 1989 | 1974 |
| Heating Degree Days (F) | 1020. | 913. | 846. | 611. | 363. | 119. | 19. | 13. | 98. | 342. | 575. | 857. | 5776. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 32. | 140. | 141. | 40. | 7. | 0. | 0. | 361. |