| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.5 | 51.2 | 57.5 | 65.3 | 73.6 | 82.8 | 85.6 | 83.5 | 77.0 | 67.6 | 55.4 | 46.7 | 66.1 |
| Highest Mean Max. Temperature (F) | 54.4 | 58.1 | 65.5 | 72.2 | 81.9 | 90.4 | 92.7 | 88.8 | 82.6 | 73.0 | 64.5 | 57.3 | 92.7 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1981 | 1974 | 1990 | 1980 | 2000 | 1983 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 34.9 | 42.5 | 52.6 | 55.8 | 68.9 | 74.7 | 81.1 | 79.4 | 71.9 | 60.5 | 45.6 | 38.6 | 34.9 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1997 | 1983 | 1989 | 1991 | 1971 | 1996 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 32.9 | 37.4 | 43.4 | 50.4 | 59.3 | 68.2 | 72.1 | 70.5 | 63.8 | 53.1 | 41.6 | 33.6 | 52.2 |
| Highest Mean Temperature (F) | 38.3 | 43.8 | 49.6 | 57.7 | 67.0 | 74.6 | 78.1 | 74.4 | 67.5 | 56.7 | 47.2 | 41.9 | 78.1 |
| Year Highest Occurred | 1986 | 2000 | 1974 | 1981 | 1996 | 1990 | 1980 | 2000 | 1983 | 1995 | 1989 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 24.1 | 31.4 | 40.0 | 42.3 | 54.3 | 63.4 | 68.2 | 67.2 | 60.1 | 48.1 | 33.7 | 26.0 | 24.1 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1973 | 1983 | 1989 | 1991 | 1986 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.2 | 23.6 | 29.3 | 35.5 | 45.0 | 53.5 | 58.5 | 57.4 | 50.5 | 38.5 | 27.8 | 20.5 | 38.3 |
| Highest Mean Min. Temperature (F) | 27.7 | 29.8 | 34.9 | 43.1 | 52.4 | 58.7 | 63.5 | 61.0 | 53.5 | 43.8 | 34.1 | 26.5 | 63.5 |
| Year Highest Occurred | 1999 | 1999 | 1986 | 1981 | 1996 | 1990 | 1980 | 1995 | 1997 | 1998 | 1998 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 13.4 | 19.6 | 24.7 | 28.0 | 39.7 | 48.1 | 55.1 | 54.2 | 47.5 | 34.0 | 20.4 | 13.4 | 13.4 |
| Year Lowest Occurred | 1979 | 1971 | 1979 | 1973 | 1983 | 1988 | 1989 | 1986 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.37 | 0.42 | 0.77 | 0.88 | 1.84 | 2.02 | 2.87 | 3.28 | 1.71 | 1.15 | 0.54 | 0.52 | 16.37 |
| Highest Precipitation (in.) | 1.10 | 2.66 | 2.30 | 3.22 | 4.12 | 4.70 | 5.69 | 6.14 | 4.95 | 4.05 | 3.20 | 2.57 | 6.14 |
| Year Highest Occurred | 1979 | 1987 | 1985 | 1999 | 1994 | 1989 | 1971 | 1992 | 1988 | 2000 | 1978 | 1997 | 1992 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.92 | 0.39 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1998 | 2000 | 1989 | 1996 | 1998 | 1998 | 1987 | 2000 | 2000 | 1995 | 1989 | 1994 | 1998 |
| Heating Degree Days (F) | 995. | 774. | 670. | 442. | 206. | 52. | 7. | 14. | 95. | 371. | 702. | 973. | 5301. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 28. | 146. | 225. | 182. | 56. | 1. | 0. | 0. | 641. |