| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.5 | 41.3 | 48.4 | 57.2 | 66.2 | 76.7 | 80.3 | 77.2 | 71.8 | 61.8 | 47.2 | 38.7 | 58.7 |
| Highest Mean Max. Temperature (F) | 48.5 | 50.4 | 55.6 | 64.6 | 75.2 | 82.8 | 87.0 | 81.4 | 77.6 | 67.7 | 56.3 | 50.6 | 87.0 |
| Year Highest Occurred | 1981 | 1981 | 1972 | 1981 | 1996 | 1990 | 1980 | 1980 | 1979 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 30.2 | 36.1 | 41.7 | 50.1 | 61.5 | 72.0 | 75.7 | 74.1 | 68.0 | 49.9 | 37.3 | 31.4 | 30.2 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1983 | 1995 | 1995 | 1986 | 1974 | 1986 | 1984 | 1972 | 1992 | 1979 |
| Mean Temperature (F) | 21.4 | 25.5 | 33.3 | 40.5 | 49.2 | 58.7 | 63.5 | 61.5 | 55.0 | 44.9 | 32.1 | 23.5 | 42.4 |
| Highest Mean Temperature (F) | 30.6 | 31.3 | 38.2 | 46.0 | 54.5 | 63.6 | 68.1 | 64.4 | 58.8 | 49.0 | 37.7 | 34.0 | 68.1 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1996 | 1990 | 1980 | 1995 | 1998 | 1979 | 1981 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 14.0 | 20.1 | 27.9 | 34.7 | 44.9 | 55.0 | 60.6 | 57.8 | 51.8 | 37.2 | 25.8 | 16.7 | 14.0 |
| Year Lowest Occurred | 1979 | 1979 | 1980 | 1980 | 1975 | 1995 | 1986 | 1974 | 1986 | 1984 | 1972 | 1990 | 1979 |
| Mean Min. Temperature (F) | 5.2 | 9.6 | 18.1 | 23.7 | 32.1 | 40.6 | 46.6 | 45.7 | 38.1 | 27.9 | 17.0 | 8.3 | 26.1 |
| Highest Mean Min. Temperature (F) | 12.7 | 17.0 | 21.9 | 29.2 | 36.8 | 44.5 | 49.1 | 48.5 | 43.2 | 32.8 | 22.0 | 17.3 | 49.1 |
| Year Highest Occurred | 2000 | 1986 | 1974 | 1992 | 1992 | 1981 | 1980 | 1995 | 1997 | 1972 | 1985 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | -2.3 | 1.3 | 11.4 | 16.8 | 26.7 | 34.5 | 44.0 | 41.5 | 35.3 | 23.6 | 11.1 | 1.0 | -2.3 |
| Year Lowest Occurred | 1979 | 1974 | 1980 | 1980 | 1975 | 1975 | 1995 | 1974 | 1974 | 1976 | 1979 | 1974 | 1979 |
| Mean Precipitation (in.) | 0.66 | 0.56 | 0.96 | 0.73 | 1.15 | 1.25 | 2.06 | 2.93 | 1.44 | 1.22 | 1.01 | 0.64 | 14.61 |
| Highest Precipitation (in.) | 2.90 | 2.33 | 2.37 | 2.65 | 3.42 | 3.26 | 4.00 | 6.99 | 3.96 | 3.61 | 4.14 | 2.30 | 6.99 |
| Year Highest Occurred | 1979 | 1975 | 1985 | 1999 | 1994 | 1986 | 1990 | 1971 | 1997 | 1998 | 1978 | 1990 | 1971 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.04 | 0.00 | 0.00 | 0.00 | 0.12 | 0.23 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1991 | 1986 | 1996 | 1998 | 1998 | 1980 | 1985 | 2000 | 1995 | 1999 | 1999 | 1986 |
| Heating Degree Days (F) | 1353. | 1108. | 984. | 737. | 493. | 204. | 75. | 123. | 302. | 624. | 988. | 1286. | 8277. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 26. | 13. | 1. | 0. | 0. | 0. | 54. |