| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 38.3 | 42.8 | 49.8 | 58.2 | 67.9 | 79.0 | 85.4 | 84.1 | 75.6 | 63.3 | 47.0 | 39.6 | 60.9 |
| Highest Mean Max. Temperature (F) | 46.8 | 51.2 | 57.5 | 66.8 | 75.3 | 84.3 | 90.3 | 89.7 | 82.3 | 67.8 | 60.8 | 50.3 | 90.3 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1987 | 1994 | 1988 | 2000 | 1995 | 1998 | 1975 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 25.2 | 31.1 | 43.2 | 49.1 | 57.1 | 72.6 | 80.8 | 79.5 | 70.2 | 57.9 | 34.9 | 25.6 | 25.2 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1984 | 1995 | 1982 | 1992 | 1992 | 1986 | 1984 | 2000 | 1983 | 1979 |
| Mean Temperature (F) | 26.8 | 30.9 | 36.9 | 44.4 | 54.1 | 64.2 | 70.2 | 69.1 | 60.4 | 48.8 | 35.1 | 28.1 | 47.4 |
| Highest Mean Temperature (F) | 35.6 | 38.3 | 44.0 | 50.7 | 59.4 | 69.6 | 74.0 | 73.2 | 66.7 | 51.3 | 46.0 | 37.2 | 74.0 |
| Year Highest Occurred | 1986 | 1991 | 1986 | 1981 | 1994 | 1988 | 2000 | 1983 | 1998 | 1973 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 13.5 | 19.7 | 32.3 | 37.8 | 47.6 | 59.5 | 66.6 | 65.2 | 56.0 | 44.6 | 25.3 | 15.1 | 13.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1983 | 1995 | 1982 | 1992 | 1974 | 1971 | 1984 | 2000 | 1983 | 1979 |
| Mean Min. Temperature (F) | 15.2 | 18.9 | 24.0 | 30.6 | 40.2 | 49.3 | 55.0 | 54.0 | 45.1 | 34.3 | 23.1 | 16.5 | 33.9 |
| Highest Mean Min. Temperature (F) | 24.4 | 26.4 | 30.4 | 35.1 | 44.4 | 54.8 | 57.8 | 59.1 | 51.1 | 37.1 | 31.2 | 24.0 | 59.1 |
| Year Highest Occurred | 1986 | 1992 | 1986 | 1977 | 1987 | 1988 | 1998 | 1983 | 1998 | 1998 | 1999 | 1980 | 1983 |
| Lowest Mean Min. Temperature (F) | 1.7 | 8.3 | 19.4 | 25.8 | 36.1 | 45.6 | 52.1 | 49.3 | 40.7 | 29.8 | 15.2 | 4.6 | 1.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1983 | 1983 | 1998 | 1972 | 1974 | 1974 | 1976 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.80 | 0.63 | 1.60 | 1.92 | 2.83 | 2.46 | 2.28 | 1.63 | 1.51 | 1.15 | 0.98 | 0.78 | 18.57 |
| Highest Precipitation (in.) | 2.31 | 1.71 | 6.26 | 4.31 | 5.51 | 6.06 | 5.40 | 4.32 | 3.61 | 4.09 | 2.72 | 2.67 | 6.26 |
| Year Highest Occurred | 1992 | 1984 | 1983 | 1984 | 1995 | 1983 | 1990 | 1983 | 1973 | 1998 | 1993 | 1973 | 1983 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.23 | 0.22 | 0.41 | 0.32 | 0.57 | 0.08 | 0.25 | 0.08 | 0.05 | 0.04 | 0.00 |
| Year Lowest Occurred | 1998 | 1996 | 1986 | 1992 | 1984 | 1980 | 1991 | 1973 | 1978 | 1977 | 1981 | 1991 | 1996 |
| Heating Degree Days (F) | 1186. | 957. | 872. | 618. | 346. | 97. | 9. | 26. | 180. | 501. | 898. | 1146. | 6836. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 7. | 72. | 171. | 151. | 40. | 0. | 0. | 0. | 441. |