| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 26.4 | 33.7 | 45.4 | 61.1 | 72.6 | 82.0 | 87.6 | 86.1 | 77.1 | 63.1 | 43.1 | 30.4 | 59.1 |
| Highest Mean Max. Temperature (F) | 39.6 | 45.4 | 57.4 | 70.3 | 79.5 | 92.9 | 94.5 | 94.5 | 85.4 | 68.4 | 57.4 | 42.1 | 94.5 |
| Year Highest Occurred | 1990 | 1987 | 2000 | 1981 | 1977 | 1988 | 1975 | 1983 | 1998 | 1974 | 1999 | 1979 | 1975 |
| Lowest Mean Max. Temperature (F) | 12.4 | 19.8 | 35.7 | 51.6 | 65.6 | 75.4 | 76.7 | 79.1 | 69.4 | 57.4 | 29.4 | 11.9 | 11.9 |
| Year Lowest Occurred | 1978 | 1978 | 1984 | 1975 | 1996 | 1993 | 1992 | 1992 | 1985 | 1995 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 15.4 | 22.6 | 34.2 | 48.0 | 59.7 | 69.2 | 74.5 | 72.7 | 63.0 | 49.9 | 32.8 | 20.0 | 46.8 |
| Highest Mean Temperature (F) | 26.9 | 34.1 | 42.1 | 55.5 | 66.9 | 77.0 | 79.1 | 79.7 | 69.4 | 55.3 | 42.5 | 29.4 | 79.7 |
| Year Highest Occurred | 1990 | 1998 | 2000 | 1981 | 1977 | 1988 | 1975 | 1983 | 1998 | 1973 | 1999 | 1979 | 1983 |
| Lowest Mean Temperature (F) | 1.1 | 8.6 | 26.7 | 42.0 | 55.6 | 64.0 | 66.1 | 66.9 | 57.2 | 45.5 | 20.8 | 2.1 | 1.1 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1995 | 1997 | 1985 | 1992 | 1992 | 1984 | 1987 | 1985 | 1983 | 1978 |
| Mean Min. Temperature (F) | 4.3 | 11.4 | 22.9 | 34.8 | 46.7 | 56.3 | 61.3 | 59.3 | 48.9 | 36.7 | 22.4 | 9.5 | 34.5 |
| Highest Mean Min. Temperature (F) | 16.5 | 25.8 | 31.7 | 41.1 | 54.4 | 62.9 | 65.1 | 64.8 | 53.6 | 43.1 | 28.5 | 20.0 | 65.1 |
| Year Highest Occurred | 1983 | 1998 | 1973 | 1977 | 1977 | 1991 | 1983 | 1983 | 1978 | 1973 | 1987 | 1997 | 1983 |
| Lowest Mean Min. Temperature (F) | -10.2 | -3.5 | 14.7 | 30.2 | 42.4 | 51.3 | 55.5 | 54.7 | 42.6 | 31.5 | 12.1 | -7.7 | -10.2 |
| Year Lowest Occurred | 1978 | 1979 | 1996 | 1990 | 1979 | 1985 | 1992 | 1992 | 1984 | 1987 | 1985 | 1983 | 1978 |
| Mean Precipitation (in.) | 0.46 | 0.58 | 1.60 | 2.65 | 3.38 | 3.29 | 2.80 | 2.12 | 1.94 | 1.74 | 1.19 | 0.43 | 22.18 |
| Highest Precipitation (in.) | 1.38 | 1.55 | 5.68 | 6.56 | 9.56 | 7.32 | 6.81 | 4.08 | 5.41 | 7.77 | 3.97 | 0.99 | 9.56 |
| Year Highest Occurred | 1975 | 1971 | 1987 | 1986 | 1972 | 1984 | 1993 | 1992 | 1973 | 1998 | 2000 | 1973 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.02 | 0.14 | 0.73 | 0.55 | 0.20 | 0.44 | 0.61 | 0.18 | 0.12 | 0.04 | 0.00 | 0.00 |
| Year Lowest Occurred | 1990 | 1986 | 1997 | 1987 | 1980 | 1988 | 1975 | 1983 | 1974 | 1988 | 1976 | 1991 | 1990 |
| Heating Degree Days (F) | 1539. | 1188. | 957. | 514. | 203. | 43. | 12. | 20. | 136. | 470. | 969. | 1398. | 7449. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 3. | 37. | 167. | 305. | 258. | 76. | 1. | 0. | 0. | 847. |