| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 40.6 | 43.7 | 48.8 | 55.6 | 65.0 | 74.3 | 78.2 | 75.7 | 69.5 | 60.6 | 47.9 | 41.1 | 58.4 |
| Highest Mean Max. Temperature (F) | 49.9 | 50.8 | 58.9 | 63.4 | 72.9 | 82.8 | 83.8 | 79.9 | 75.0 | 65.8 | 58.3 | 49.4 | 83.8 |
| Year Highest Occurred | 1986 | 1999 | 1989 | 1981 | 1996 | 1990 | 1980 | 1983 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 32.6 | 36.6 | 41.3 | 46.5 | 58.2 | 67.8 | 74.4 | 71.1 | 64.9 | 50.2 | 39.0 | 35.1 | 32.6 |
| Year Lowest Occurred | 1979 | 1997 | 1973 | 1973 | 1995 | 1995 | 1992 | 1987 | 1987 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 24.4 | 27.3 | 33.2 | 40.4 | 49.9 | 58.5 | 62.8 | 61.2 | 54.3 | 45.0 | 33.2 | 25.8 | 43.0 |
| Highest Mean Temperature (F) | 31.5 | 33.9 | 39.9 | 46.2 | 55.7 | 62.6 | 66.1 | 63.9 | 59.1 | 49.2 | 41.3 | 33.6 | 66.1 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1981 | 1996 | 1990 | 1980 | 1983 | 1998 | 1988 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 16.3 | 22.6 | 26.9 | 32.4 | 45.8 | 55.0 | 60.8 | 58.7 | 51.3 | 38.1 | 25.3 | 19.9 | 16.3 |
| Year Lowest Occurred | 1979 | 1985 | 1987 | 1973 | 1995 | 1995 | 1992 | 1981 | 1973 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 8.2 | 10.8 | 17.5 | 25.1 | 34.8 | 42.7 | 47.4 | 46.6 | 39.1 | 29.4 | 18.5 | 10.5 | 27.6 |
| Highest Mean Min. Temperature (F) | 15.3 | 17.9 | 23.1 | 29.7 | 38.6 | 45.3 | 50.5 | 49.4 | 44.4 | 33.2 | 24.6 | 17.7 | 50.5 |
| Year Highest Occurred | 1999 | 2000 | 1986 | 1992 | 1994 | 1988 | 1998 | 1997 | 1997 | 1974 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | -0.1 | 4.1 | 9.3 | 18.3 | 30.2 | 39.9 | 45.2 | 43.7 | 34.6 | 25.4 | 11.6 | 3.9 | -0.1 |
| Year Lowest Occurred | 1979 | 1984 | 1987 | 1973 | 1975 | 1973 | 1990 | 1973 | 1973 | 1980 | 1972 | 1986 | 1979 |
| Mean Precipitation (in.) | 0.91 | 1.06 | 1.85 | 1.98 | 2.94 | 2.58 | 3.52 | 3.72 | 2.10 | 1.51 | 1.43 | 0.77 | 24.37 |
| Highest Precipitation (in.) | 2.31 | 5.86 | 4.78 | 6.22 | 7.14 | 6.50 | 7.40 | 9.42 | 5.50 | 4.29 | 3.63 | 3.24 | 9.42 |
| Year Highest Occurred | 1987 | 1984 | 1993 | 1999 | 1995 | 1983 | 1973 | 1981 | 1989 | 1986 | 1983 | 1973 | 1981 |
| Lowest Precipitation (in.) | 0.11 | 0.05 | 0.04 | 0.04 | 0.07 | 0.21 | 0.69 | 1.14 | 0.13 | 0.00 | 0.00 | 0.17 | 0.00 |
| Year Lowest Occurred | 1981 | 1972 | 1989 | 1982 | 1998 | 1998 | 1980 | 1980 | 1992 | 1995 | 1989 | 1980 | 1995 |
| Heating Degree Days (F) | 1259. | 1057. | 987. | 739. | 469. | 203. | 81. | 131. | 321. | 621. | 954. | 1215. | 8037. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 13. | 11. | 1. | 0. | 0. | 0. | 33. |