| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.8 | 33.5 | 38.3 | 44.5 | 55.3 | 66.9 | 71.1 | 69.3 | 62.3 | 51.3 | 37.5 | 31.3 | 49.3 |
| Highest Mean Max. Temperature (F) | 39.2 | 39.1 | 44.9 | 51.4 | 63.4 | 71.7 | 75.0 | 73.1 | 68.9 | 57.3 | 50.9 | 41.5 | 75.0 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 2000 | 2000 | 1994 | 2000 | 1995 | 1998 | 1999 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 21.1 | 29.0 | 32.0 | 37.9 | 48.5 | 62.1 | 67.3 | 63.9 | 57.1 | 41.9 | 30.5 | 24.3 | 21.1 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1983 | 1995 | 1983 | 1992 | 1976 | 1985 | 1984 | 1972 | 1978 | 1979 |
| Mean Temperature (F) | 16.8 | 19.1 | 24.7 | 31.6 | 41.5 | 50.3 | 54.8 | 53.5 | 46.9 | 37.2 | 24.6 | 17.6 | 34.9 |
| Highest Mean Temperature (F) | 23.1 | 24.5 | 29.5 | 37.0 | 46.6 | 54.0 | 57.3 | 56.5 | 50.8 | 40.9 | 32.0 | 27.2 | 57.3 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 2000 | 2000 | 1994 | 1998 | 1995 | 1998 | 1988 | 1999 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 10.0 | 13.9 | 19.2 | 25.3 | 37.2 | 47.1 | 52.3 | 49.9 | 43.2 | 31.0 | 17.8 | 12.5 | 10.0 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1983 | 1983 | 1995 | 1992 | 1976 | 1985 | 1984 | 1979 | 1978 | 1979 |
| Mean Min. Temperature (F) | 2.8 | 4.7 | 11.0 | 18.7 | 27.7 | 33.7 | 38.5 | 37.7 | 31.5 | 23.1 | 11.7 | 3.8 | 20.4 |
| Highest Mean Min. Temperature (F) | 7.7 | 10.9 | 15.3 | 23.3 | 29.8 | 37.1 | 41.5 | 41.5 | 34.9 | 27.1 | 17.8 | 12.9 | 41.5 |
| Year Highest Occurred | 2000 | 1995 | 1989 | 1992 | 2000 | 1981 | 1998 | 1982 | 1982 | 1972 | 1995 | 1980 | 1982 |
| Lowest Mean Min. Temperature (F) | -2.4 | -1.8 | 6.4 | 12.7 | 25.2 | 31.3 | 36.4 | 33.7 | 28.9 | 19.1 | 3.8 | -1.0 | -2.4 |
| Year Lowest Occurred | 1984 | 1974 | 1977 | 1983 | 1999 | 1998 | 1995 | 1974 | 1988 | 1976 | 2000 | 1990 | 1984 |
| Mean Precipitation (in.) | 0.64 | 0.79 | 0.94 | 1.08 | 0.63 | 0.80 | 1.78 | 1.76 | 0.90 | 0.74 | 0.80 | 0.73 | 11.59 |
| Highest Precipitation (in.) | 4.83 | 3.19 | 2.11 | 2.93 | 2.42 | 2.17 | 3.66 | 4.25 | 1.91 | 2.19 | 2.29 | 4.37 | 4.83 |
| Year Highest Occurred | 1996 | 1986 | 1996 | 1997 | 1995 | 1992 | 1998 | 1984 | 1985 | 1996 | 1977 | 1977 | 1996 |
| Lowest Precipitation (in.) | 0.00 | 0.12 | 0.06 | 0.09 | 0.04 | 0.00 | 0.41 | 0.58 | 0.20 | 0.04 | 0.28 | 0.01 | 0.00 |
| Year Lowest Occurred | 1981 | 1985 | 1999 | 2000 | 1998 | 1999 | 1994 | 1996 | 1998 | 1976 | 1982 | 1998 | 1981 |
| Heating Degree Days (F) | 1495. | 1285. | 1252. | 1002. | 729. | 441. | 315. | 357. | 543. | 861. | 1212. | 1470. | 10962. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |