| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.1 | 31.8 | 34.9 | 40.9 | 49.9 | 60.9 | 65.8 | 64.1 | 57.3 | 47.4 | 36.8 | 31.2 | 46.0 |
| Highest Mean Max. Temperature (F) | 40.8 | 38.2 | 46.2 | 47.8 | 56.3 | 66.7 | 69.6 | 70.4 | 63.1 | 54.2 | 46.2 | 42.2 | 70.4 |
| Year Highest Occurred | 1986 | 1979 | 1972 | 1981 | 1974 | 1990 | 1980 | 1978 | 1979 | 1988 | 1999 | 1980 | 1978 |
| Lowest Mean Max. Temperature (F) | 24.4 | 22.6 | 29.3 | 33.0 | 41.9 | 55.0 | 62.0 | 57.9 | 51.0 | 39.1 | 27.3 | 22.2 | 22.2 |
| Year Lowest Occurred | 1995 | 1993 | 1991 | 1975 | 1995 | 1995 | 1976 | 1976 | 1986 | 1984 | 1992 | 1992 | 1992 |
| Mean Temperature (F) | 17.4 | 18.7 | 22.7 | 29.0 | 38.5 | 47.9 | 53.0 | 51.6 | 45.3 | 35.6 | 24.2 | 18.2 | 33.5 |
| Highest Mean Temperature (F) | 24.5 | 24.2 | 32.4 | 35.3 | 44.3 | 51.8 | 55.7 | 53.8 | 49.1 | 40.7 | 33.1 | 27.5 | 55.7 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1972 | 1996 | 1990 | 1980 | 1995 | 1998 | 1977 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 10.2 | 12.9 | 16.0 | 22.7 | 32.6 | 43.6 | 49.8 | 46.8 | 41.1 | 29.0 | 16.9 | 10.7 | 10.2 |
| Year Lowest Occurred | 1979 | 1994 | 1977 | 1983 | 1995 | 1995 | 1976 | 1976 | 1986 | 1976 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 3.6 | 5.6 | 10.5 | 17.0 | 27.1 | 34.8 | 40.2 | 39.0 | 33.2 | 23.7 | 11.6 | 5.2 | 21.0 |
| Highest Mean Min. Temperature (F) | 9.1 | 11.9 | 18.6 | 23.7 | 32.7 | 39.2 | 43.8 | 41.9 | 37.9 | 28.0 | 20.0 | 12.8 | 43.8 |
| Year Highest Occurred | 2000 | 1995 | 1972 | 1972 | 1996 | 1994 | 1998 | 1982 | 1998 | 1977 | 1999 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -5.1 | 0.5 | 2.1 | 10.8 | 22.5 | 31.0 | 37.6 | 33.9 | 29.7 | 18.7 | 5.6 | -1.4 | -5.1 |
| Year Lowest Occurred | 1979 | 1975 | 1977 | 1983 | 1975 | 1975 | 1976 | 1979 | 1988 | 1976 | 2000 | 1990 | 1979 |
| Mean Precipitation (in.) | 3.92 | 4.25 | 5.29 | 3.31 | 2.47 | 1.71 | 3.70 | 4.71 | 4.31 | 4.96 | 4.30 | 3.54 | 46.47 |
| Highest Precipitation (in.) | 15.66 | 19.08 | 14.38 | 8.35 | 7.21 | 6.25 | 7.84 | 10.89 | 9.85 | 14.45 | 11.00 | 14.82 | 19.08 |
| Year Highest Occurred | 1980 | 1980 | 1979 | 1999 | 1979 | 1984 | 1999 | 1993 | 1985 | 1972 | 1978 | 1978 | 1980 |
| Lowest Precipitation (in.) | 0.19 | 0.36 | 0.67 | 0.70 | 0.00 | 0.00 | 0.43 | 0.21 | 1.30 | 0.05 | 0.60 | 0.18 | 0.00 |
| Year Lowest Occurred | 1986 | 1981 | 1997 | 1981 | 1974 | 1982 | 1982 | 1978 | 1987 | 1995 | 1989 | 1976 | 1974 |
| Heating Degree Days (F) | 1477. | 1296. | 1296. | 1082. | 822. | 515. | 372. | 417. | 593. | 912. | 1224. | 1450. | 11456. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |