| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.3 | 35.6 | 41.5 | 48.0 | 58.8 | 70.0 | 75.4 | 73.1 | 66.6 | 55.9 | 41.0 | 32.6 | 52.6 |
| Highest Mean Max. Temperature (F) | 42.2 | 43.5 | 48.7 | 55.4 | 64.4 | 75.6 | 80.0 | 78.0 | 72.2 | 60.6 | 54.9 | 43.1 | 80.0 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 2000 | 1994 | 1980 | 2000 | 1998 | 1999 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 23.6 | 26.8 | 33.0 | 40.0 | 51.8 | 65.2 | 70.7 | 69.7 | 61.7 | 44.0 | 26.9 | 21.0 | 21.0 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1973 | 1980 | 1983 | 1973 | 1976 | 1985 | 1984 | 1972 | 1986 | 1986 |
| Mean Temperature (F) | 14.6 | 17.4 | 26.3 | 33.2 | 43.3 | 52.3 | 57.8 | 56.1 | 48.8 | 37.6 | 24.4 | 15.0 | 35.6 |
| Highest Mean Temperature (F) | 23.5 | 25.6 | 32.5 | 39.1 | 47.5 | 56.8 | 60.4 | 59.4 | 52.6 | 41.1 | 31.6 | 25.8 | 60.4 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 2000 | 1994 | 1996 | 2000 | 1998 | 1988 | 1995 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 3.3 | 6.1 | 11.5 | 26.1 | 39.1 | 47.8 | 54.8 | 53.1 | 45.5 | 30.4 | 9.7 | 0.3 | 0.3 |
| Year Lowest Occurred | 1984 | 1973 | 1987 | 1973 | 1983 | 1975 | 1973 | 1976 | 1985 | 1984 | 1972 | 1986 | 1986 |
| Mean Min. Temperature (F) | -3.1 | -0.8 | 11.0 | 18.4 | 27.8 | 34.5 | 40.1 | 39.1 | 31.0 | 19.3 | 7.7 | -2.7 | 18.5 |
| Highest Mean Min. Temperature (F) | 5.9 | 9.3 | 18.9 | 23.0 | 31.0 | 39.3 | 44.7 | 43.1 | 35.5 | 23.8 | 17.3 | 8.6 | 44.7 |
| Year Highest Occurred | 1971 | 1986 | 1974 | 1990 | 1989 | 1988 | 1999 | 1988 | 1997 | 1994 | 1998 | 1977 | 1999 |
| Lowest Mean Min. Temperature (F) | -19.6 | -14.7 | 2.3 | 10.7 | 24.4 | 29.5 | 37.2 | 34.4 | 26.2 | 15.0 | -7.5 | -20.4 | -20.4 |
| Year Lowest Occurred | 1984 | 1973 | 1973 | 1987 | 1971 | 1975 | 1994 | 1975 | 1975 | 1980 | 1972 | 1986 | 1986 |
| Mean Precipitation (in.) | 0.21 | 0.25 | 0.52 | 0.73 | 1.02 | 1.18 | 1.89 | 1.97 | 0.93 | 0.64 | 0.37 | 0.26 | 9.97 |
| Highest Precipitation (in.) | 0.46 | 0.92 | 1.43 | 2.27 | 2.61 | 3.00 | 4.50 | 4.37 | 2.87 | 1.79 | 1.31 | 0.60 | 4.50 |
| Year Highest Occurred | 2000 | 1987 | 1995 | 1999 | 1979 | 1988 | 1998 | 1983 | 1982 | 1974 | 1986 | 1978 | 1998 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.06 | 0.00 | 0.04 | 0.07 | 0.16 | 0.04 | 0.03 | 0.01 | 0.01 | 0.04 | 0.00 |
| Year Lowest Occurred | 1995 | 2000 | 1989 | 1981 | 1998 | 1980 | 1978 | 1985 | 1987 | 1983 | 1984 | 1995 | 2000 |
| Heating Degree Days (F) | 1564. | 1335. | 1212. | 954. | 673. | 383. | 225. | 277. | 487. | 849. | 1219. | 1553. | 10731. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |