| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 26.0 | 32.1 | 43.9 | 58.8 | 71.2 | 81.1 | 86.9 | 85.2 | 75.4 | 61.3 | 41.8 | 29.3 | 57.8 |
| Highest Mean Max. Temperature (F) | 40.1 | 43.3 | 54.1 | 67.9 | 78.3 | 89.6 | 94.7 | 92.6 | 83.0 | 66.4 | 56.7 | 41.2 | 94.7 |
| Year Highest Occurred | 1990 | 1976 | 2000 | 1981 | 1977 | 1988 | 1976 | 1976 | 1978 | 1974 | 1999 | 1979 | 1976 |
| Lowest Mean Max. Temperature (F) | 11.4 | 16.4 | 34.8 | 48.4 | 63.3 | 74.7 | 75.1 | 77.1 | 68.0 | 56.4 | 27.6 | 10.0 | 10.0 |
| Year Lowest Occurred | 1978 | 1978 | 1998 | 1995 | 1996 | 1993 | 1992 | 1992 | 1986 | 1976 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 16.2 | 22.2 | 33.8 | 47.4 | 59.8 | 69.5 | 75.0 | 73.3 | 63.5 | 50.2 | 33.1 | 20.3 | 47.0 |
| Highest Mean Temperature (F) | 30.1 | 33.9 | 42.0 | 54.7 | 65.6 | 76.4 | 80.5 | 79.4 | 69.8 | 53.9 | 45.6 | 29.7 | 80.5 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1981 | 1977 | 1988 | 1975 | 1983 | 1978 | 1973 | 1999 | 1997 | 1975 |
| Lowest Mean Temperature (F) | 2.8 | 7.0 | 25.1 | 40.3 | 54.6 | 64.5 | 66.0 | 67.5 | 58.7 | 45.3 | 20.5 | 3.0 | 2.8 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1995 | 1996 | 1982 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 6.4 | 12.3 | 23.7 | 35.9 | 48.3 | 57.9 | 63.1 | 61.4 | 51.6 | 39.0 | 24.4 | 11.2 | 36.3 |
| Highest Mean Min. Temperature (F) | 20.0 | 25.7 | 30.2 | 41.7 | 52.8 | 63.2 | 66.4 | 66.5 | 57.2 | 43.3 | 34.5 | 23.0 | 66.5 |
| Year Highest Occurred | 1990 | 1998 | 1973 | 1987 | 1977 | 1988 | 1975 | 1983 | 1998 | 1973 | 1999 | 1997 | 1983 |
| Lowest Mean Min. Temperature (F) | -7.5 | -3.8 | 14.7 | 31.9 | 44.2 | 53.2 | 56.9 | 56.1 | 45.9 | 34.2 | 13.4 | -4.0 | -7.5 |
| Year Lowest Occurred | 1982 | 1979 | 1996 | 1982 | 1979 | 1985 | 1992 | 1985 | 1974 | 1976 | 1985 | 1983 | 1982 |
| Mean Precipitation (in.) | 0.48 | 0.56 | 1.86 | 2.64 | 3.78 | 3.12 | 2.82 | 2.22 | 2.16 | 1.82 | 1.06 | 0.43 | 22.95 |
| Highest Precipitation (in.) | 1.50 | 2.06 | 6.61 | 5.70 | 7.60 | 6.90 | 5.81 | 4.50 | 6.90 | 6.58 | 2.77 | 1.66 | 7.60 |
| Year Highest Occurred | 1996 | 1987 | 1977 | 1995 | 1995 | 1993 | 1972 | 1982 | 1996 | 1998 | 1992 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.01 | 0.01 | 0.20 | 0.32 | 0.96 | 0.53 | 0.32 | 0.05 | 0.10 | 0.07 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1974 | 1983 | 1994 | 1981 | 1975 | 1988 | 1975 | 1993 | 1979 | 1992 | 1990 | 1986 | 1990 |
| Heating Degree Days (F) | 1513. | 1200. | 967. | 532. | 203. | 36. | 12. | 17. | 129. | 462. | 957. | 1388. | 7416. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 40. | 171. | 322. | 274. | 84. | 1. | 0. | 0. | 895. |