| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 31.1 | 32.6 | 37.9 | 44.8 | 52.4 | 58.6 | 62.4 | 62.1 | 55.6 | 45.0 | 36.9 | 33.3 | 46.1 |
| Highest Mean Max. Temperature (F) | 41.9 | 40.8 | 43.5 | 50.6 | 58.8 | 64.8 | 66.7 | 67.1 | 60.1 | 49.1 | 43.0 | 40.0 | 67.1 |
| Year Highest Occurred | 1977 | 1977 | 1984 | 1990 | 1997 | 1997 | 1993 | 1994 | 1997 | 1993 | 1979 | 1985 | 1994 |
| Lowest Mean Max. Temperature (F) | 17.4 | 23.6 | 28.0 | 37.8 | 44.5 | 52.5 | 59.7 | 57.0 | 52.3 | 39.9 | 30.5 | 20.0 | 17.4 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1971 | 1972 | 1978 | 1986 | 1992 | 1996 | 1990 | 1980 | 1971 |
| Mean Temperature (F) | 26.2 | 27.2 | 32.0 | 38.6 | 45.8 | 52.1 | 56.4 | 55.9 | 49.6 | 39.8 | 31.7 | 28.1 | 40.3 |
| Highest Mean Temperature (F) | 37.7 | 36.2 | 37.9 | 42.9 | 49.7 | 55.9 | 60.4 | 59.3 | 52.7 | 43.8 | 37.6 | 35.8 | 60.4 |
| Year Highest Occurred | 1977 | 1977 | 1984 | 1990 | 1996 | 1997 | 1993 | 1994 | 1997 | 1993 | 1979 | 1985 | 1993 |
| Lowest Mean Temperature (F) | 12.8 | 16.1 | 21.9 | 31.2 | 39.5 | 47.4 | 53.6 | 52.9 | 45.4 | 34.9 | 24.2 | 14.3 | 12.8 |
| Year Lowest Occurred | 1971 | 1979 | 1972 | 1972 | 1971 | 1972 | 1971 | 1986 | 1992 | 1996 | 1977 | 1980 | 1971 |
| Mean Min. Temperature (F) | 21.3 | 21.8 | 26.1 | 32.3 | 39.2 | 45.5 | 50.3 | 49.6 | 43.6 | 34.5 | 26.5 | 22.9 | 34.5 |
| Highest Mean Min. Temperature (F) | 33.5 | 32.7 | 32.3 | 37.0 | 43.5 | 49.0 | 54.1 | 53.3 | 48.2 | 38.9 | 32.6 | 31.6 | 54.1 |
| Year Highest Occurred | 1977 | 1997 | 1984 | 1995 | 1993 | 1990 | 1993 | 1993 | 1995 | 1979 | 1976 | 1985 | 1993 |
| Lowest Mean Min. Temperature (F) | 8.2 | 8.6 | 14.9 | 24.5 | 34.5 | 42.2 | 47.1 | 45.8 | 38.4 | 29.9 | 17.6 | 8.6 | 8.2 |
| Year Lowest Occurred | 1971 | 1979 | 1971 | 1972 | 1971 | 1971 | 1971 | 1973 | 1992 | 1996 | 1977 | 1980 | 1971 |
| Mean Precipitation (in.) | 7.19 | 5.82 | 4.14 | 4.71 | 4.75 | 2.32 | 2.24 | 5.49 | 10.36 | 9.81 | 7.15 | 7.84 | 71.82 |
| Highest Precipitation (in.) | 25.43 | 13.31 | 12.29 | 14.87 | 15.93 | 5.76 | 6.01 | 12.22 | 29.72 | 24.00 | 25.22 | 19.67 | 29.72 |
| Year Highest Occurred | 1981 | 1980 | 1981 | 1998 | 1985 | 1987 | 1990 | 1993 | 1995 | 1986 | 1976 | 1985 | 1995 |
| Lowest Precipitation (in.) | 0.25 | 0.07 | 0.14 | 0.28 | 0.42 | 0.78 | 0.14 | 0.93 | 2.10 | 2.09 | 0.21 | 0.96 | 0.07 |
| Year Lowest Occurred | 1996 | 1979 | 1989 | 1981 | 1974 | 1984 | 1982 | 1987 | 1992 | 1985 | 1975 | 1972 | 1979 |
| Heating Degree Days (F) | 1203. | 1058. | 1023. | 794. | 596. | 390. | 269. | 284. | 462. | 784. | 1000. | 1144. | 9007. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |