| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.1 | 34.5 | 40.1 | 44.9 | 55.4 | 67.5 | 74.5 | 72.2 | 65.4 | 53.8 | 38.0 | 32.6 | 50.8 |
| Highest Mean Max. Temperature (F) | 38.7 | 40.4 | 46.7 | 51.9 | 61.8 | 73.5 | 77.7 | 76.5 | 70.9 | 58.0 | 51.7 | 42.5 | 77.7 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1981 | 1994 | 1994 | 1980 | 1995 | 1979 | 1992 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 19.4 | 27.4 | 34.5 | 35.8 | 45.9 | 61.2 | 69.5 | 69.3 | 60.1 | 45.9 | 29.6 | 20.3 | 19.4 |
| Year Lowest Occurred | 1979 | 1985 | 1984 | 1983 | 1995 | 1982 | 1992 | 1987 | 1985 | 1984 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 20.3 | 23.3 | 28.0 | 32.3 | 42.5 | 52.5 | 59.1 | 57.1 | 49.9 | 40.3 | 28.1 | 22.7 | 38.0 |
| Highest Mean Temperature (F) | 28.5 | 28.9 | 33.6 | 37.6 | 47.8 | 57.7 | 62.1 | 60.9 | 55.0 | 45.3 | 38.2 | 31.6 | 62.1 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1981 | 2000 | 1994 | 1980 | 1995 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 8.9 | 16.6 | 23.8 | 25.6 | 36.4 | 48.3 | 55.1 | 53.8 | 46.1 | 35.7 | 20.7 | 12.5 | 8.9 |
| Year Lowest Occurred | 1979 | 1985 | 1973 | 1983 | 1995 | 1982 | 1992 | 1978 | 1985 | 1984 | 2000 | 1983 | 1979 |
| Mean Min. Temperature (F) | 10.5 | 12.1 | 15.8 | 19.7 | 29.6 | 37.5 | 43.7 | 42.0 | 34.3 | 26.7 | 18.2 | 12.7 | 25.2 |
| Highest Mean Min. Temperature (F) | 18.2 | 17.9 | 21.6 | 25.1 | 34.1 | 41.8 | 46.8 | 46.7 | 39.7 | 32.8 | 25.1 | 20.7 | 46.8 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1992 | 2000 | 1994 | 1999 | 1982 | 1997 | 1988 | 1981 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | -1.6 | 5.8 | 11.3 | 15.0 | 25.6 | 34.0 | 38.1 | 35.4 | 29.4 | 20.5 | 11.8 | 3.4 | -1.6 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1973 | 1990 | 1978 | 1993 | 1978 | 1974 | 1976 | 2000 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.18 | 1.00 | 1.98 | 1.98 | 1.44 | 1.12 | 1.10 | 1.05 | 0.97 | 0.76 | 1.27 | 1.06 | 14.91 |
| Highest Precipitation (in.) | 3.24 | 2.14 | 4.63 | 3.85 | 6.05 | 2.27 | 2.08 | 2.43 | 2.89 | 2.19 | 3.22 | 2.22 | 6.05 |
| Year Highest Occurred | 1980 | 1987 | 1992 | 1999 | 1995 | 1982 | 1989 | 2000 | 2000 | 1997 | 1983 | 1973 | 1995 |
| Lowest Precipitation (in.) | 0.29 | 0.18 | 0.72 | 0.81 | 0.26 | 0.45 | 0.26 | 0.38 | 0.20 | 0.08 | 0.40 | 0.13 | 0.08 |
| Year Lowest Occurred | 1995 | 1992 | 1997 | 1982 | 1974 | 1990 | 1993 | 1985 | 1991 | 1992 | 1999 | 1991 | 1992 |
| Heating Degree Days (F) | 1386. | 1168. | 1149. | 981. | 697. | 376. | 186. | 246. | 455. | 769. | 1106. | 1314. | 9833. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 1. | 4. | 1. | 0. | 0. | 0. | 0. | 6. |