| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.7 | 46.5 | 56.5 | 65.1 | 74.7 | 85.9 | 92.4 | 90.6 | 82.3 | 68.7 | 52.2 | 41.5 | 66.3 |
| Highest Mean Max. Temperature (F) | 48.0 | 54.8 | 64.9 | 73.7 | 79.6 | 91.2 | 95.6 | 93.8 | 88.4 | 75.5 | 62.8 | 52.3 | 95.6 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1992 | 1994 | 1986 | 1989 | 1986 | 1979 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 31.6 | 39.8 | 49.4 | 55.4 | 68.1 | 78.4 | 88.6 | 88.4 | 76.8 | 60.8 | 43.6 | 34.4 | 31.6 |
| Year Lowest Occurred | 1989 | 1989 | 1973 | 1975 | 1995 | 1998 | 1992 | 1993 | 1986 | 1984 | 1994 | 1990 | 1989 |
| Mean Temperature (F) | 26.9 | 33.1 | 41.1 | 47.9 | 56.4 | 65.6 | 72.3 | 70.8 | 62.5 | 50.6 | 37.5 | 28.2 | 49.4 |
| Highest Mean Temperature (F) | 34.9 | 40.1 | 46.2 | 54.2 | 60.3 | 70.2 | 74.8 | 74.0 | 66.5 | 56.5 | 43.6 | 36.1 | 74.8 |
| Year Highest Occurred | 2000 | 1995 | 1989 | 1992 | 2000 | 1988 | 1989 | 1986 | 1990 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 16.0 | 25.6 | 34.7 | 40.8 | 51.7 | 59.8 | 67.7 | 68.1 | 58.3 | 46.0 | 30.9 | 19.6 | 16.0 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1975 | 1995 | 1998 | 1993 | 1993 | 1986 | 1984 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 14.1 | 19.7 | 25.7 | 30.6 | 38.0 | 45.2 | 52.2 | 50.9 | 42.6 | 32.5 | 22.8 | 14.9 | 32.4 |
| Highest Mean Min. Temperature (F) | 24.5 | 26.8 | 32.0 | 36.6 | 41.8 | 50.2 | 55.2 | 55.3 | 47.3 | 37.6 | 26.4 | 21.6 | 55.3 |
| Year Highest Occurred | 2000 | 1990 | 1978 | 1990 | 2000 | 1988 | 1981 | 1983 | 1981 | 1988 | 1981 | 1983 | 1983 |
| Lowest Mean Min. Temperature (F) | 0.3 | 11.3 | 17.5 | 25.7 | 34.8 | 41.1 | 46.7 | 47.0 | 37.5 | 28.3 | 15.3 | 4.7 | 0.3 |
| Year Lowest Occurred | 1989 | 1989 | 1976 | 1982 | 1975 | 1998 | 1993 | 1976 | 1971 | 1995 | 1979 | 1990 | 1989 |
| Mean Precipitation (in.) | 0.83 | 0.69 | 1.06 | 0.96 | 0.93 | 0.46 | 0.48 | 0.66 | 0.86 | 1.06 | 0.81 | 0.62 | 9.42 |
| Highest Precipitation (in.) | 2.05 | 2.05 | 2.57 | 1.88 | 2.14 | 2.12 | 1.26 | 1.71 | 3.72 | 2.49 | 2.83 | 2.24 | 3.72 |
| Year Highest Occurred | 1982 | 1980 | 1983 | 1999 | 1983 | 1984 | 1982 | 1984 | 1982 | 1972 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.04 | 0.00 | 0.02 | 0.02 | 0.09 | 0.00 | 0.00 | 0.07 | 0.00 | 0.05 | 0.14 | 0.00 | 0.00 |
| Year Lowest Occurred | 1971 | 1989 | 1972 | 1982 | 1974 | 1989 | 1989 | 1996 | 1974 | 1995 | 1976 | 1986 | 1989 |
| Heating Degree Days (F) | 1181. | 893. | 740. | 515. | 278. | 81. | 4. | 6. | 118. | 447. | 824. | 1140. | 6227. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 10. | 97. | 229. | 184. | 40. | 1. | 0. | 0. | 561. |