| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 29.7 | 35.0 | 43.2 | 55.2 | 65.4 | 75.8 | 84.9 | 84.1 | 73.1 | 59.8 | 40.8 | 30.6 | 56.5 |
| Highest Mean Max. Temperature (F) | 38.3 | 47.8 | 54.8 | 66.2 | 74.7 | 83.9 | 90.0 | 91.5 | 79.9 | 71.2 | 50.3 | 38.0 | 91.5 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1992 | 1992 | 1988 | 1996 | 1981 | 1994 | 1988 | 1976 | 1980 | 1981 |
| Lowest Mean Max. Temperature (F) | 19.9 | 25.7 | 33.5 | 43.1 | 59.3 | 69.1 | 74.6 | 78.4 | 62.2 | 53.1 | 31.4 | 22.9 | 19.9 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1975 | 1977 | 1998 | 1993 | 1976 | 1985 | 1984 | 1994 | 1990 | 1979 |
| Mean Temperature (F) | 20.2 | 24.7 | 32.3 | 42.2 | 51.3 | 60.3 | 68.4 | 67.4 | 57.1 | 45.6 | 30.4 | 20.9 | 43.4 |
| Highest Mean Temperature (F) | 28.3 | 35.3 | 42.3 | 50.6 | 59.4 | 66.6 | 73.2 | 72.7 | 64.2 | 54.4 | 38.4 | 28.2 | 73.2 |
| Year Highest Occurred | 1981 | 1991 | 1992 | 1987 | 1992 | 1988 | 1989 | 1981 | 1990 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 10.3 | 12.7 | 24.5 | 32.9 | 46.6 | 55.6 | 59.6 | 62.2 | 48.9 | 40.0 | 21.8 | 12.3 | 10.3 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1975 | 1977 | 1998 | 1993 | 1976 | 1985 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 10.6 | 14.3 | 21.3 | 29.1 | 37.1 | 44.7 | 51.9 | 50.7 | 41.1 | 31.3 | 19.9 | 11.1 | 30.3 |
| Highest Mean Min. Temperature (F) | 18.2 | 22.9 | 29.7 | 35.5 | 44.0 | 50.6 | 56.9 | 54.6 | 48.7 | 37.5 | 27.4 | 18.3 | 56.9 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1990 | 1992 | 1986 | 1998 | 1994 | 1990 | 1988 | 1995 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.7 | -0.3 | 12.8 | 22.3 | 32.5 | 40.8 | 44.5 | 45.3 | 33.9 | 26.8 | 11.2 | 1.7 | -0.3 |
| Year Lowest Occurred | 1979 | 1985 | 1976 | 1982 | 1990 | 1975 | 1993 | 1975 | 1971 | 1984 | 1985 | 1990 | 1985 |
| Mean Precipitation (in.) | 1.76 | 1.65 | 1.35 | 1.12 | 1.80 | 1.12 | 0.81 | 0.78 | 0.85 | 0.93 | 1.48 | 1.57 | 15.22 |
| Highest Precipitation (in.) | 6.34 | 5.53 | 3.44 | 4.03 | 5.40 | 3.70 | 3.40 | 2.85 | 2.09 | 2.59 | 4.48 | 4.25 | 6.34 |
| Year Highest Occurred | 1980 | 1999 | 1995 | 1978 | 1980 | 1993 | 1987 | 1983 | 1985 | 2000 | 1973 | 1996 | 1980 |
| Lowest Precipitation (in.) | 0.08 | 0.00 | 0.00 | 0.10 | 0.14 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.08 | 0.00 |
| Year Lowest Occurred | 1991 | 1991 | 1994 | 1974 | 1974 | 1974 | 1999 | 1996 | 1987 | 1990 | 1976 | 1986 | 1991 |
| Heating Degree Days (F) | 1391. | 1129. | 1015. | 686. | 431. | 190. | 53. | 62. | 270. | 604. | 1040. | 1370. | 8241. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 47. | 159. | 136. | 33. | 0. | 0. | 0. | 378. |