| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.6 | 46.9 | 55.4 | 63.7 | 73.3 | 84.4 | 91.1 | 89.1 | 80.8 | 68.7 | 53.4 | 43.3 | 66.0 |
| Highest Mean Max. Temperature (F) | 53.5 | 59.2 | 64.9 | 73.3 | 80.5 | 90.7 | 95.5 | 92.0 | 86.3 | 76.6 | 64.7 | 51.7 | 95.5 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1974 | 1971 | 1996 | 1979 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 31.3 | 38.3 | 45.1 | 54.7 | 64.9 | 76.7 | 86.5 | 85.9 | 74.6 | 60.5 | 42.3 | 33.1 | 31.3 |
| Year Lowest Occurred | 1973 | 1985 | 1973 | 1975 | 1977 | 1995 | 1992 | 1983 | 1986 | 1984 | 1994 | 1972 | 1973 |
| Mean Temperature (F) | 26.5 | 32.1 | 38.8 | 45.2 | 54.2 | 63.1 | 70.1 | 68.5 | 59.6 | 48.0 | 35.6 | 27.1 | 47.4 |
| Highest Mean Temperature (F) | 34.8 | 40.8 | 44.4 | 51.7 | 59.1 | 67.7 | 73.5 | 72.6 | 62.5 | 52.8 | 40.3 | 34.7 | 73.5 |
| Year Highest Occurred | 1986 | 1995 | 1986 | 1989 | 1984 | 1981 | 1996 | 1986 | 1995 | 1988 | 1999 | 1977 | 1996 |
| Lowest Mean Temperature (F) | 16.2 | 24.6 | 32.1 | 39.2 | 49.8 | 58.5 | 65.8 | 64.5 | 55.6 | 43.0 | 27.9 | 17.1 | 16.2 |
| Year Lowest Occurred | 1973 | 1985 | 1977 | 1975 | 1977 | 1995 | 1983 | 1976 | 1986 | 1971 | 1994 | 1972 | 1973 |
| Mean Min. Temperature (F) | 11.4 | 17.2 | 22.2 | 26.7 | 35.0 | 41.8 | 49.0 | 47.9 | 38.4 | 27.2 | 17.7 | 10.8 | 28.8 |
| Highest Mean Min. Temperature (F) | 24.1 | 25.6 | 28.4 | 31.6 | 38.7 | 47.5 | 53.5 | 53.3 | 46.1 | 32.9 | 22.6 | 19.3 | 53.5 |
| Year Highest Occurred | 1995 | 1992 | 1995 | 1990 | 1992 | 1981 | 1996 | 1986 | 1997 | 1972 | 1987 | 1996 | 1996 |
| Lowest Mean Min. Temperature (F) | -0.4 | 9.4 | 13.4 | 21.1 | 29.5 | 38.1 | 42.8 | 41.9 | 33.3 | 21.7 | 13.1 | 1.0 | -0.4 |
| Year Lowest Occurred | 1989 | 1974 | 1976 | 1991 | 1983 | 1976 | 1983 | 1976 | 1993 | 1999 | 1975 | 1972 | 1989 |
| Mean Precipitation (in.) | 0.77 | 0.90 | 1.34 | 0.81 | 0.78 | 0.49 | 1.02 | 1.07 | 0.90 | 1.11 | 0.82 | 0.57 | 10.58 |
| Highest Precipitation (in.) | 3.03 | 2.76 | 4.96 | 2.85 | 2.90 | 2.81 | 3.93 | 2.61 | 3.93 | 3.22 | 2.23 | 1.56 | 4.96 |
| Year Highest Occurred | 1980 | 1993 | 1992 | 1988 | 1977 | 1982 | 1984 | 1986 | 1997 | 2000 | 1972 | 1984 | 1992 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 | 0.02 | 0.00 | 0.04 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1972 | 1977 | 1974 | 1996 | 1979 | 1985 | 1974 | 1995 | 1995 | 1989 | 1972 |
| Heating Degree Days (F) | 1194. | 923. | 813. | 595. | 342. | 112. | 13. | 23. | 175. | 529. | 883. | 1178. | 6780. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 6. | 56. | 170. | 131. | 14. | 0. | 0. | 0. | 377. |