| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.6 | 46.7 | 52.0 | 58.9 | 66.9 | 75.8 | 83.7 | 83.8 | 77.3 | 67.0 | 51.9 | 43.9 | 62.5 |
| Highest Mean Max. Temperature (F) | 49.5 | 60.4 | 59.8 | 66.5 | 75.6 | 81.7 | 87.8 | 89.2 | 82.6 | 76.1 | 61.5 | 51.3 | 89.2 |
| Year Highest Occurred | 1981 | 1991 | 1972 | 1987 | 1992 | 1985 | 1994 | 1981 | 1974 | 1988 | 1995 | 1976 | 1981 |
| Lowest Mean Max. Temperature (F) | 36.3 | 39.5 | 45.7 | 48.3 | 54.9 | 69.5 | 78.7 | 75.2 | 67.8 | 58.8 | 44.3 | 37.4 | 36.3 |
| Year Lowest Occurred | 1993 | 1993 | 1975 | 1975 | 1998 | 1995 | 1983 | 1976 | 1986 | 1981 | 1994 | 1972 | 1993 |
| Mean Temperature (F) | 29.2 | 33.6 | 39.1 | 44.0 | 51.2 | 58.6 | 64.2 | 63.3 | 57.2 | 48.3 | 37.7 | 30.5 | 46.4 |
| Highest Mean Temperature (F) | 37.0 | 42.3 | 44.4 | 49.2 | 57.7 | 63.3 | 68.0 | 67.1 | 60.5 | 54.1 | 44.2 | 37.1 | 68.0 |
| Year Highest Occurred | 1981 | 1991 | 1972 | 1989 | 1992 | 1977 | 1996 | 1981 | 1981 | 1988 | 1995 | 1981 | 1996 |
| Lowest Mean Temperature (F) | 22.0 | 26.9 | 33.7 | 35.8 | 43.8 | 55.1 | 60.4 | 59.3 | 51.5 | 43.4 | 29.6 | 22.9 | 22.0 |
| Year Lowest Occurred | 1972 | 1989 | 1985 | 1975 | 1977 | 1991 | 1993 | 1976 | 1986 | 1984 | 1985 | 1972 | 1972 |
| Mean Min. Temperature (F) | 16.7 | 20.5 | 26.1 | 29.0 | 35.5 | 41.3 | 44.6 | 42.8 | 37.1 | 29.6 | 23.5 | 17.1 | 30.3 |
| Highest Mean Min. Temperature (F) | 24.5 | 24.9 | 31.9 | 32.3 | 40.0 | 45.2 | 48.7 | 46.1 | 42.8 | 34.0 | 28.4 | 27.5 | 48.7 |
| Year Highest Occurred | 1981 | 1977 | 1983 | 1989 | 1997 | 1977 | 1996 | 1977 | 1998 | 1979 | 1997 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 7.2 | 13.3 | 19.2 | 23.3 | 31.4 | 37.1 | 41.3 | 37.6 | 32.9 | 24.5 | 14.2 | 7.8 | 7.2 |
| Year Lowest Occurred | 1972 | 1990 | 1985 | 1975 | 1988 | 1991 | 2000 | 1985 | 1973 | 1973 | 1985 | 1990 | 1972 |
| Mean Precipitation (in.) | 4.59 | 4.38 | 3.80 | 1.33 | 1.08 | 0.45 | 0.29 | 0.42 | 0.77 | 1.65 | 3.68 | 3.90 | 26.34 |
| Highest Precipitation (in.) | 12.02 | 19.37 | 15.16 | 5.14 | 3.88 | 1.33 | 2.23 | 2.55 | 4.16 | 5.51 | 14.79 | 16.53 | 19.37 |
| Year Highest Occurred | 1997 | 1986 | 1995 | 1982 | 1971 | 1993 | 1974 | 1976 | 1982 | 1975 | 1981 | 1996 | 1986 |
| Lowest Precipitation (in.) | 0.14 | 0.00 | 0.14 | 0.16 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.16 | 0.00 | 0.00 |
| Year Lowest Occurred | 1991 | 1988 | 1988 | 1985 | 1999 | 1994 | 2000 | 2000 | 1995 | 1995 | 1992 | 1989 | 1988 |
| Heating Degree Days (F) | 1112. | 878. | 804. | 631. | 430. | 206. | 81. | 95. | 242. | 517. | 819. | 1069. | 6884. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 12. | 54. | 43. | 8. | 0. | 0. | 0. | 119. |