| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.2 | 39.5 | 49.0 | 58.0 | 66.6 | 75.9 | 79.1 | 77.4 | 72.1 | 61.3 | 44.9 | 34.2 | 57.5 |
| Highest Mean Max. Temperature (F) | 44.7 | 51.5 | 56.9 | 64.2 | 73.8 | 81.3 | 81.9 | 82.1 | 76.8 | 67.1 | 52.5 | 48.0 | 82.1 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1989 | 1996 | 1994 | 1989 | 2000 | 1998 | 1991 | 1989 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 20.4 | 29.0 | 41.5 | 51.5 | 62.1 | 70.7 | 76.6 | 74.3 | 67.8 | 52.9 | 32.9 | 21.6 | 20.4 |
| Year Lowest Occurred | 1979 | 1979 | 1979 | 1983 | 1983 | 1983 | 1986 | 1979 | 1986 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 15.1 | 22.6 | 33.2 | 41.2 | 50.0 | 57.8 | 61.8 | 60.2 | 54.2 | 43.4 | 29.2 | 17.8 | 40.5 |
| Highest Mean Temperature (F) | 27.4 | 35.2 | 39.3 | 46.3 | 56.3 | 61.5 | 64.1 | 63.7 | 59.4 | 47.9 | 35.0 | 28.3 | 64.1 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1989 | 1996 | 1994 | 1998 | 1995 | 1998 | 1988 | 1998 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 1.6 | 8.6 | 26.0 | 36.3 | 45.8 | 53.0 | 59.6 | 56.6 | 51.5 | 38.7 | 17.6 | 3.7 | 1.6 |
| Year Lowest Occurred | 1992 | 1979 | 1979 | 1983 | 1978 | 1982 | 1992 | 1976 | 1986 | 1976 | 1972 | 1978 | 1992 |
| Mean Min. Temperature (F) | -2.1 | 5.6 | 17.4 | 24.4 | 33.3 | 39.7 | 44.5 | 43.0 | 36.2 | 25.5 | 13.4 | 1.4 | 23.5 |
| Highest Mean Min. Temperature (F) | 11.8 | 18.8 | 22.4 | 28.8 | 38.7 | 43.6 | 49.7 | 48.7 | 43.3 | 29.7 | 20.2 | 10.9 | 49.7 |
| Year Highest Occurred | 1999 | 1995 | 1990 | 1986 | 1996 | 1986 | 1999 | 1982 | 1997 | 1974 | 1998 | 1995 | 1999 |
| Lowest Mean Min. Temperature (F) | -17.4 | -11.9 | 10.1 | 19.5 | 28.9 | 33.9 | 40.9 | 37.9 | 32.5 | 19.2 | 2.3 | -14.2 | -17.4 |
| Year Lowest Occurred | 1992 | 1979 | 1977 | 1982 | 1978 | 1982 | 1978 | 1976 | 1993 | 1980 | 1972 | 1978 | 1992 |
| Mean Precipitation (in.) | 0.16 | 0.17 | 0.37 | 0.39 | 0.62 | 0.67 | 1.11 | 1.30 | 0.91 | 0.57 | 0.46 | 0.25 | 6.98 |
| Highest Precipitation (in.) | 0.49 | 0.70 | 1.30 | 2.01 | 2.10 | 1.98 | 2.81 | 3.09 | 1.99 | 1.94 | 1.69 | 0.88 | 3.09 |
| Year Highest Occurred | 1987 | 1990 | 2000 | 1990 | 1980 | 1995 | 1989 | 1993 | 1990 | 1998 | 1986 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.23 | 0.28 | 0.01 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 2000 | 1986 | 1981 | 1998 | 1998 | 1987 | 1978 | 1987 | 1995 | 1999 | 1999 | 1981 |
| Heating Degree Days (F) | 1550. | 1188. | 985. | 715. | 466. | 223. | 110. | 163. | 326. | 670. | 1076. | 1464. | 8936. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 10. | 15. | 1. | 0. | 0. | 0. | 32. |