| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.7 | 43.5 | 48.5 | 56.6 | 64.5 | 72.5 | 70.8 | 69.0 | 66.3 | 59.3 | 49.0 | 42.8 | 57.0 |
| Highest Mean Max. Temperature (F) | 47.9 | 50.4 | 56.0 | 63.7 | 72.4 | 77.6 | 76.7 | 73.1 | 72.0 | 65.7 | 57.7 | 50.9 | 77.6 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1989 | 1996 | 1980 | 1980 | 1994 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 33.2 | 37.4 | 42.0 | 49.4 | 59.2 | 68.8 | 65.7 | 66.0 | 62.0 | 51.6 | 41.2 | 36.1 | 33.2 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1992 | 1979 | 1991 | 1974 | 1975 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 28.8 | 31.4 | 35.5 | 42.3 | 50.1 | 57.3 | 58.3 | 56.7 | 52.9 | 45.1 | 36.1 | 30.2 | 43.7 |
| Highest Mean Temperature (F) | 34.4 | 37.2 | 40.3 | 47.7 | 56.3 | 61.8 | 62.8 | 60.0 | 56.9 | 47.6 | 41.1 | 34.8 | 62.8 |
| Year Highest Occurred | 2000 | 2000 | 1972 | 1989 | 2000 | 1990 | 1980 | 1994 | 1997 | 1992 | 1999 | 1977 | 1980 |
| Lowest Mean Temperature (F) | 24.1 | 27.2 | 30.9 | 35.7 | 46.1 | 53.4 | 54.7 | 53.6 | 48.9 | 40.0 | 30.4 | 24.4 | 24.1 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1976 | 1979 | 1975 | 1974 | 1975 | 1976 | 2000 | 1997 | 1979 |
| Mean Min. Temperature (F) | 16.8 | 19.3 | 22.5 | 27.9 | 35.7 | 42.0 | 45.8 | 44.4 | 39.4 | 30.9 | 23.1 | 17.6 | 30.5 |
| Highest Mean Min. Temperature (F) | 22.5 | 25.9 | 27.2 | 31.7 | 40.3 | 46.8 | 49.2 | 47.3 | 44.0 | 35.5 | 28.8 | 23.2 | 49.2 |
| Year Highest Occurred | 1993 | 1996 | 1995 | 2000 | 2000 | 1990 | 1998 | 1999 | 1997 | 1998 | 1978 | 1994 | 1998 |
| Lowest Mean Min. Temperature (F) | 11.6 | 12.5 | 17.5 | 21.9 | 31.6 | 37.9 | 42.8 | 40.8 | 35.7 | 25.2 | 18.2 | 12.7 | 11.6 |
| Year Lowest Occurred | 1992 | 1974 | 1977 | 1973 | 1975 | 1979 | 1975 | 1979 | 1971 | 1976 | 1992 | 1997 | 1992 |
| Mean Precipitation (in.) | 1.59 | 1.72 | 1.41 | 0.67 | 0.96 | 2.39 | 5.35 | 5.35 | 2.90 | 2.15 | 1.71 | 1.99 | 28.19 |
| Highest Precipitation (in.) | 4.05 | 4.08 | 4.31 | 2.59 | 5.31 | 5.98 | 8.88 | 11.23 | 5.40 | 5.77 | 5.10 | 5.29 | 11.23 |
| Year Highest Occurred | 1997 | 1991 | 1991 | 1997 | 1992 | 2000 | 1989 | 1988 | 1990 | 1972 | 1978 | 1984 | 1988 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.10 | 2.34 | 1.79 | 0.50 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 2000 | 1999 | 1971 | 1991 | 1998 | 1989 | 1987 | 1997 | 2000 | 1995 | 1999 | 1996 | 2000 |
| Heating Degree Days (F) | 1125. | 942. | 915. | 683. | 463. | 237. | 214. | 258. | 366. | 617. | 868. | 1079. | 7767. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 4. | 5. | 0. | 0. | 0. | 0. | 0. | 9. |