| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.8 | 42.8 | 50.7 | 58.5 | 66.5 | 73.1 | 82.5 | 85.9 | 74.8 | 60.8 | 44.3 | 36.1 | 59.3 |
| Highest Mean Max. Temperature (F) | 43.0 | 51.3 | 59.2 | 65.6 | 72.4 | 79.8 | 90.2 | 91.6 | 85.3 | 69.3 | 51.7 | 42.4 | 91.6 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1987 | 1992 | 1986 | 1996 | 1971 | 1990 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 24.0 | 31.6 | 45.4 | 51.6 | 60.4 | 66.1 | 71.5 | 79.3 | 65.3 | 55.6 | 32.1 | 27.1 | 24.0 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1996 | 1981 | 1993 | 1993 | 1985 | 1995 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 29.2 | 34.1 | 40.8 | 47.6 | 55.1 | 61.1 | 68.2 | 69.4 | 60.5 | 49.1 | 37.0 | 29.6 | 48.5 |
| Highest Mean Temperature (F) | 36.2 | 40.9 | 47.5 | 52.5 | 59.8 | 66.2 | 73.7 | 73.9 | 68.2 | 55.5 | 42.9 | 35.7 | 73.9 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1990 | 1993 | 1992 | 1985 | 1971 | 1990 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Temperature (F) | 15.3 | 23.2 | 35.6 | 42.6 | 50.3 | 56.9 | 60.9 | 64.2 | 55.0 | 44.3 | 26.2 | 20.5 | 15.3 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1996 | 1981 | 1993 | 1993 | 1985 | 1995 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 22.5 | 25.4 | 30.9 | 36.7 | 43.6 | 49.0 | 53.8 | 52.9 | 46.1 | 37.3 | 29.7 | 23.1 | 37.6 |
| Highest Mean Min. Temperature (F) | 29.4 | 30.7 | 35.7 | 40.3 | 47.8 | 52.7 | 59.2 | 56.3 | 51.9 | 41.8 | 34.7 | 28.9 | 59.2 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1990 | 1993 | 1992 | 1998 | 1999 | 1998 | 1988 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 6.6 | 14.8 | 25.4 | 33.3 | 39.6 | 46.7 | 50.2 | 48.1 | 43.1 | 32.9 | 20.4 | 13.9 | 6.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1999 | 1976 | 1993 | 1980 | 1971 | 1995 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 1.96 | 1.58 | 2.65 | 2.75 | 3.92 | 2.36 | 0.96 | 0.88 | 1.23 | 2.09 | 2.58 | 1.94 | 24.90 |
| Highest Precipitation (in.) | 4.43 | 3.10 | 4.48 | 5.26 | 7.35 | 4.70 | 4.27 | 2.43 | 3.12 | 5.95 | 5.84 | 3.54 | 7.35 |
| Year Highest Occurred | 1974 | 1986 | 1972 | 1993 | 1980 | 1981 | 1997 | 1995 | 1985 | 1975 | 1995 | 1977 | 1980 |
| Lowest Precipitation (in.) | 0.31 | 0.50 | 1.30 | 0.56 | 1.83 | 1.08 | 0.00 | 0.13 | 0.00 | 0.00 | 0.90 | 0.46 | 0.00 |
| Year Lowest Occurred | 1985 | 1990 | 1993 | 1977 | 1999 | 1979 | 1996 | 2000 | 1993 | 1987 | 1987 | 1986 | 1996 |
| Heating Degree Days (F) | 1112. | 867. | 751. | 522. | 312. | 154. | 49. | 30. | 187. | 494. | 840. | 1098. | 6416. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 35. | 146. | 167. | 51. | 0. | 0. | 0. | 403. |