| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.9 | 50.1 | 57.8 | 66.3 | 75.0 | 86.3 | 91.3 | 88.8 | 80.2 | 69.7 | 54.4 | 45.3 | 67.5 |
| Highest Mean Max. Temperature (F) | 58.3 | 60.3 | 67.3 | 74.4 | 83.0 | 94.9 | 97.4 | 94.7 | 86.3 | 74.7 | 67.2 | 53.6 | 97.4 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1981 | 1996 | 1990 | 1980 | 1995 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.4 | 37.9 | 50.3 | 56.9 | 67.9 | 79.3 | 88.0 | 84.1 | 74.8 | 60.5 | 43.8 | 32.2 | 32.2 |
| Year Lowest Occurred | 1979 | 1978 | 1983 | 1983 | 1995 | 1982 | 1982 | 1981 | 1973 | 1984 | 1992 | 1983 | 1983 |
| Mean Temperature (F) | 29.9 | 34.3 | 41.0 | 49.5 | 59.1 | 70.3 | 74.9 | 73.1 | 64.3 | 53.3 | 39.3 | 31.0 | 51.7 |
| Highest Mean Temperature (F) | 39.6 | 42.4 | 47.1 | 56.6 | 64.8 | 76.4 | 79.6 | 77.3 | 68.8 | 56.0 | 49.1 | 37.9 | 79.6 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 2000 | 1994 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 19.1 | 25.0 | 35.4 | 42.7 | 54.0 | 65.3 | 72.3 | 68.8 | 59.6 | 47.4 | 31.2 | 19.3 | 19.1 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1997 | 1995 | 1995 | 1995 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 14.9 | 18.4 | 24.1 | 32.7 | 43.2 | 54.2 | 58.4 | 57.4 | 48.4 | 36.8 | 24.1 | 16.7 | 35.8 |
| Highest Mean Min. Temperature (F) | 20.9 | 24.6 | 30.1 | 38.9 | 47.3 | 58.7 | 61.7 | 60.4 | 52.3 | 40.1 | 30.9 | 22.2 | 61.7 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 2000 | 1994 | 1980 | 1983 | 1990 | 1998 | 1999 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 5.9 | 11.7 | 18.0 | 27.4 | 38.5 | 51.1 | 55.3 | 53.1 | 43.4 | 31.5 | 18.4 | 6.3 | 5.9 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1973 | 1975 | 1973 | 1995 | 1974 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.47 | 0.48 | 1.16 | 1.64 | 2.86 | 2.00 | 2.49 | 2.46 | 1.37 | 0.96 | 0.73 | 0.42 | 17.04 |
| Highest Precipitation (in.) | 1.33 | 2.08 | 4.68 | 5.50 | 6.40 | 8.18 | 7.57 | 9.62 | 4.43 | 3.57 | 2.65 | 1.49 | 9.62 |
| Year Highest Occurred | 1999 | 1987 | 1973 | 1980 | 1977 | 1992 | 1998 | 1994 | 1988 | 1986 | 1975 | 1973 | 1994 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.02 | 0.33 | 0.55 | 0.18 | 0.49 | 0.33 | 0.12 | 0.00 | 0.00 | 0.03 | 0.00 |
| Year Lowest Occurred | 1982 | 2000 | 1978 | 1982 | 1997 | 1985 | 1993 | 1971 | 1974 | 1975 | 1998 | 1980 | 2000 |
| Heating Degree Days (F) | 1088. | 861. | 746. | 469. | 220. | 33. | 1. | 7. | 94. | 366. | 773. | 1054. | 5712. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 36. | 191. | 306. | 257. | 72. | 1. | 0. | 0. | 867. |