| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.1 | 37.9 | 52.9 | 63.5 | 72.5 | 83.2 | 89.6 | 87.5 | 78.3 | 64.8 | 47.2 | 34.5 | 61.9 |
| Highest Mean Max. Temperature (F) | 44.5 | 50.3 | 62.6 | 72.3 | 77.7 | 90.9 | 93.4 | 90.6 | 83.8 | 72.6 | 56.4 | 45.5 | 93.4 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1992 | 1977 | 2000 | 1996 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 14.5 | 22.7 | 42.3 | 55.4 | 64.8 | 76.2 | 85.1 | 84.6 | 73.7 | 58.2 | 34.7 | 19.7 | 14.5 |
| Year Lowest Occurred | 1973 | 1973 | 1984 | 1983 | 1995 | 1975 | 1992 | 1993 | 1986 | 1984 | 1971 | 1978 | 1973 |
| Mean Temperature (F) | 17.5 | 23.9 | 38.0 | 47.4 | 56.3 | 65.6 | 71.9 | 70.1 | 60.9 | 48.4 | 33.5 | 21.2 | 46.2 |
| Highest Mean Temperature (F) | 29.8 | 35.5 | 45.5 | 54.8 | 61.0 | 71.1 | 74.8 | 73.5 | 65.7 | 54.1 | 38.6 | 31.3 | 74.8 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1977 | 1989 | 2000 | 1990 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 0.8 | 8.0 | 29.7 | 41.4 | 51.3 | 60.4 | 66.6 | 66.3 | 55.9 | 43.6 | 24.6 | 6.5 | 0.8 |
| Year Lowest Occurred | 1973 | 1973 | 1984 | 1975 | 1995 | 1975 | 1993 | 1975 | 1971 | 1982 | 1971 | 1978 | 1973 |
| Mean Min. Temperature (F) | 3.9 | 9.8 | 23.1 | 31.2 | 40.0 | 47.9 | 54.2 | 52.7 | 43.5 | 31.9 | 19.7 | 7.9 | 30.5 |
| Highest Mean Min. Temperature (F) | 15.5 | 21.9 | 29.5 | 37.2 | 44.2 | 51.8 | 56.8 | 57.2 | 49.7 | 35.6 | 24.2 | 17.1 | 57.2 |
| Year Highest Occurred | 2000 | 1998 | 1986 | 1992 | 1992 | 1986 | 1998 | 2000 | 1990 | 1988 | 1998 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | -13.0 | -6.8 | 17.1 | 25.4 | 36.5 | 44.1 | 47.8 | 47.2 | 37.7 | 27.6 | 14.5 | -6.7 | -13.0 |
| Year Lowest Occurred | 1973 | 1973 | 1984 | 1975 | 1975 | 1998 | 1993 | 1975 | 1971 | 1976 | 1971 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.34 | 0.34 | 0.50 | 0.72 | 0.93 | 0.55 | 0.61 | 0.72 | 0.79 | 0.88 | 0.41 | 0.25 | 7.04 |
| Highest Precipitation (in.) | 1.28 | 0.91 | 1.88 | 2.03 | 2.92 | 2.38 | 1.70 | 1.73 | 3.12 | 3.12 | 1.25 | 0.92 | 3.12 |
| Year Highest Occurred | 1980 | 1990 | 1978 | 1999 | 1995 | 1998 | 1987 | 1983 | 1997 | 1994 | 1983 | 1972 | 1997 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1994 | 1974 | 1999 | 1992 | 1974 | 1988 | 1994 | 1974 | 1979 | 1999 | 1999 | 1980 | 1994 |
| Heating Degree Days (F) | 1472. | 1153. | 837. | 529. | 278. | 81. | 6. | 12. | 155. | 516. | 948. | 1358. | 7345. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 97. | 220. | 169. | 32. | 0. | 0. | 0. | 525. |