| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.1 | 39.4 | 45.0 | 52.8 | 62.0 | 72.3 | 75.4 | 73.0 | 67.6 | 57.4 | 43.7 | 37.1 | 55.2 |
| Highest Mean Max. Temperature (F) | 42.9 | 45.3 | 52.0 | 58.9 | 70.2 | 77.4 | 79.8 | 75.7 | 71.5 | 62.1 | 54.1 | 45.5 | 79.8 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1996 | 1990 | 1980 | 1994 | 1998 | 1987 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 29.0 | 35.2 | 40.5 | 46.2 | 57.3 | 67.7 | 71.9 | 69.8 | 63.9 | 50.4 | 36.7 | 32.1 | 29.0 |
| Year Lowest Occurred | 1979 | 1998 | 1980 | 1983 | 1983 | 1983 | 1975 | 1971 | 1986 | 1984 | 1979 | 1990 | 1979 |
| Mean Temperature (F) | 21.3 | 25.0 | 31.2 | 37.8 | 46.0 | 54.4 | 58.6 | 57.1 | 51.2 | 41.5 | 29.6 | 22.7 | 39.7 |
| Highest Mean Temperature (F) | 27.9 | 32.0 | 36.1 | 42.6 | 52.2 | 57.9 | 60.8 | 59.5 | 54.6 | 44.2 | 35.8 | 30.8 | 60.8 |
| Year Highest Occurred | 1999 | 1995 | 1972 | 2000 | 1996 | 1994 | 1980 | 1995 | 1997 | 1987 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 15.9 | 20.7 | 26.8 | 30.1 | 42.8 | 50.8 | 56.2 | 53.5 | 48.9 | 38.2 | 22.7 | 17.2 | 15.9 |
| Year Lowest Occurred | 1979 | 1975 | 1987 | 1973 | 1983 | 1983 | 1975 | 1974 | 1985 | 1984 | 1979 | 1974 | 1979 |
| Mean Min. Temperature (F) | 6.4 | 10.5 | 17.4 | 22.8 | 30.0 | 36.5 | 41.7 | 41.1 | 34.8 | 25.6 | 15.5 | 8.3 | 24.2 |
| Highest Mean Min. Temperature (F) | 15.4 | 18.7 | 21.5 | 27.5 | 34.2 | 39.9 | 44.7 | 44.1 | 39.0 | 31.7 | 20.5 | 16.1 | 44.7 |
| Year Highest Occurred | 1999 | 1995 | 1974 | 1990 | 1996 | 2000 | 1998 | 1982 | 1997 | 1972 | 1985 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.0 | 3.3 | 12.1 | 13.8 | 26.4 | 33.0 | 39.0 | 37.0 | 31.1 | 21.4 | 8.7 | -0.3 | -0.3 |
| Year Lowest Occurred | 1977 | 1974 | 1987 | 1973 | 1975 | 1975 | 1987 | 1974 | 1987 | 1980 | 1979 | 1976 | 1976 |
| Mean Precipitation (in.) | 1.10 | 1.20 | 2.08 | 1.88 | 2.00 | 1.52 | 2.74 | 3.06 | 1.79 | 1.87 | 1.72 | 1.18 | 22.14 |
| Highest Precipitation (in.) | 2.45 | 3.02 | 3.69 | 5.11 | 5.13 | 4.27 | 6.00 | 6.33 | 3.71 | 4.73 | 4.25 | 3.40 | 6.33 |
| Year Highest Occurred | 1979 | 1993 | 1973 | 1999 | 1995 | 1986 | 1998 | 1993 | 1986 | 1998 | 1994 | 1978 | 1993 |
| Lowest Precipitation (in.) | 0.26 | 0.16 | 0.35 | 0.27 | 0.03 | 0.00 | 0.51 | 1.08 | 0.48 | 0.05 | 0.06 | 0.17 | 0.00 |
| Year Lowest Occurred | 1998 | 1974 | 1997 | 1972 | 1996 | 1980 | 1987 | 1973 | 1992 | 1995 | 1989 | 1999 | 1980 |
| Heating Degree Days (F) | 1356. | 1122. | 1047. | 816. | 588. | 319. | 201. | 248. | 414. | 728. | 1062. | 1312. | 9213. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |