| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.3 | 45.8 | 53.0 | 60.5 | 70.1 | 81.2 | 87.1 | 85.0 | 76.2 | 64.5 | 50.4 | 43.7 | 63.3 |
| Highest Mean Max. Temperature (F) | 52.1 | 53.3 | 61.0 | 68.5 | 76.5 | 87.7 | 90.4 | 90.3 | 82.0 | 68.7 | 61.1 | 53.1 | 90.4 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1974 | 1977 | 1974 | 1995 | 1998 | 1990 | 1999 | 1980 | 1974 |
| Lowest Mean Max. Temperature (F) | 29.1 | 30.1 | 45.5 | 52.4 | 60.3 | 75.0 | 83.3 | 80.5 | 70.5 | 55.8 | 40.2 | 28.8 | 28.8 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1995 | 1983 | 1992 | 1992 | 1973 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 27.9 | 31.6 | 38.8 | 46.2 | 55.4 | 64.8 | 70.5 | 68.8 | 60.3 | 49.2 | 36.8 | 29.6 | 48.3 |
| Highest Mean Temperature (F) | 37.2 | 37.3 | 46.0 | 52.7 | 59.5 | 70.2 | 73.6 | 72.8 | 65.9 | 52.0 | 44.8 | 38.8 | 73.6 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1994 | 1988 | 2000 | 1983 | 1998 | 1992 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 15.8 | 19.6 | 33.5 | 40.4 | 49.6 | 60.0 | 66.9 | 65.9 | 55.5 | 43.7 | 29.2 | 17.9 | 15.8 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1973 | 1995 | 1982 | 1972 | 1974 | 1971 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 13.5 | 17.4 | 24.5 | 31.9 | 40.7 | 48.3 | 53.8 | 52.6 | 44.4 | 33.8 | 23.2 | 15.4 | 33.3 |
| Highest Mean Min. Temperature (F) | 22.2 | 22.9 | 31.0 | 37.0 | 43.8 | 54.2 | 57.4 | 56.3 | 49.8 | 36.4 | 29.3 | 24.5 | 57.4 |
| Year Highest Occurred | 1986 | 1987 | 1986 | 1981 | 1993 | 1988 | 1998 | 1983 | 1998 | 1998 | 1998 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 2.6 | 9.1 | 20.4 | 26.7 | 37.3 | 44.5 | 49.9 | 47.6 | 39.9 | 30.7 | 17.2 | 7.0 | 2.6 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1973 | 1978 | 1982 | 1971 | 1974 | 1971 | 1976 | 1979 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.44 | 0.46 | 1.32 | 2.13 | 3.19 | 1.94 | 1.81 | 1.63 | 1.68 | 1.03 | 0.84 | 0.53 | 17.00 |
| Highest Precipitation (in.) | 1.57 | 1.48 | 4.21 | 6.31 | 9.34 | 5.04 | 6.14 | 4.56 | 4.38 | 3.23 | 3.02 | 1.93 | 9.34 |
| Year Highest Occurred | 1980 | 1989 | 1983 | 1971 | 1995 | 1997 | 1982 | 1979 | 1982 | 1986 | 1979 | 1979 | 1995 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.16 | 0.14 | 0.15 | 0.15 | 0.26 | 0.30 | 0.00 | 0.09 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 1977 | 1982 | 1974 | 1971 | 2000 | 1971 | 1992 | 1995 | 1984 | 1991 | 1986 |
| Heating Degree Days (F) | 1151. | 936. | 813. | 564. | 306. | 92. | 7. | 23. | 175. | 491. | 847. | 1099. | 6504. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 84. | 175. | 139. | 34. | 0. | 0. | 0. | 440. |