| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 32.3 | 35.5 | 41.2 | 49.3 | 59.7 | 69.8 | 75.4 | 74.2 | 66.5 | 55.6 | 40.0 | 33.5 | 52.8 |
| Highest Mean Max. Temperature (F) | 40.9 | 41.4 | 46.7 | 56.4 | 65.5 | 75.5 | 79.6 | 78.8 | 71.1 | 62.0 | 53.0 | 44.8 | 79.6 |
| Year Highest Occurred | 1981 | 2000 | 1986 | 1981 | 2000 | 1988 | 1989 | 1995 | 1983 | 1999 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 23.3 | 29.8 | 35.7 | 40.2 | 52.0 | 63.3 | 70.9 | 71.2 | 60.1 | 46.6 | 32.7 | 24.6 | 23.3 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1995 | 1998 | 1992 | 1972 | 1971 | 1984 | 1992 | 1978 | 1979 |
| Mean Temperature (F) | 22.1 | 24.8 | 29.6 | 36.8 | 46.1 | 55.1 | 60.8 | 59.4 | 51.6 | 41.8 | 29.0 | 23.1 | 40.0 |
| Highest Mean Temperature (F) | 30.6 | 30.3 | 35.1 | 43.2 | 50.9 | 60.4 | 64.2 | 64.0 | 56.5 | 46.1 | 38.4 | 34.6 | 64.2 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1994 | 1988 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 11.5 | 17.7 | 25.8 | 28.8 | 41.2 | 49.3 | 57.2 | 57.1 | 46.6 | 35.2 | 21.1 | 14.5 | 11.5 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1983 | 1995 | 1998 | 1993 | 1993 | 1971 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 11.8 | 14.0 | 18.0 | 24.2 | 32.5 | 40.4 | 46.2 | 44.6 | 36.7 | 27.9 | 18.0 | 12.7 | 27.3 |
| Highest Mean Min. Temperature (F) | 20.8 | 19.1 | 23.5 | 29.9 | 36.4 | 45.3 | 50.1 | 49.4 | 42.9 | 31.5 | 25.4 | 24.4 | 50.1 |
| Year Highest Occurred | 1986 | 2000 | 1986 | 1981 | 1994 | 1988 | 1998 | 2000 | 1998 | 1988 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -0.4 | 5.5 | 12.0 | 17.4 | 29.5 | 35.3 | 41.5 | 40.4 | 32.1 | 23.8 | 8.9 | 4.3 | -0.4 |
| Year Lowest Occurred | 1979 | 1989 | 1998 | 1983 | 1983 | 1998 | 1993 | 1974 | 1985 | 1984 | 2000 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.03 | 0.75 | 0.96 | 1.34 | 1.59 | 1.27 | 1.62 | 1.17 | 1.21 | 0.86 | 1.04 | 0.93 | 13.77 |
| Highest Precipitation (in.) | 3.08 | 3.54 | 3.01 | 3.99 | 5.83 | 3.02 | 5.39 | 2.84 | 2.96 | 2.32 | 2.67 | 2.95 | 5.83 |
| Year Highest Occurred | 1999 | 1994 | 1998 | 1999 | 1995 | 1986 | 1984 | 1979 | 1997 | 1998 | 1985 | 1978 | 1995 |
| Lowest Precipitation (in.) | 0.18 | 0.17 | 0.34 | 0.36 | 0.14 | 0.09 | 0.21 | 0.32 | 0.09 | 0.16 | 0.33 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1982 | 1986 | 1987 | 1974 | 1977 | 1979 | 1975 | 1983 | 1988 | 1976 | 1993 | 1993 |
| Heating Degree Days (F) | 1331. | 1128. | 1098. | 847. | 586. | 303. | 144. | 181. | 403. | 721. | 1079. | 1299. | 9120. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 14. | 7. | 1. | 0. | 0. | 0. | 28. |