| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.3 | 40.4 | 45.2 | 50.6 | 58.5 | 65.0 | 72.8 | 73.7 | 67.6 | 55.9 | 41.5 | 36.1 | 53.6 |
| Highest Mean Max. Temperature (F) | 44.7 | 48.9 | 56.2 | 56.6 | 68.3 | 73.5 | 82.3 | 80.0 | 74.1 | 67.7 | 46.9 | 40.3 | 82.3 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1992 | 1992 | 1985 | 1981 | 1989 | 1987 | 1976 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 32.4 | 34.7 | 38.8 | 45.1 | 52.0 | 59.0 | 61.7 | 67.1 | 60.3 | 49.4 | 33.2 | 29.8 | 29.8 |
| Year Lowest Occurred | 1972 | 1989 | 1971 | 1972 | 1984 | 1981 | 1993 | 1975 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Temperature (F) | 31.0 | 33.5 | 37.0 | 41.0 | 47.7 | 53.4 | 59.6 | 60.2 | 54.9 | 45.9 | 35.8 | 31.1 | 44.3 |
| Highest Mean Temperature (F) | 38.1 | 41.1 | 44.9 | 45.6 | 55.0 | 60.4 | 65.4 | 64.7 | 59.2 | 53.1 | 40.3 | 35.7 | 65.4 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1987 | 1992 | 1992 | 1985 | 1981 | 1990 | 1987 | 1995 | 1979 | 1985 |
| Lowest Mean Temperature (F) | 26.0 | 27.1 | 32.3 | 36.2 | 43.2 | 49.3 | 53.2 | 56.1 | 49.3 | 41.7 | 26.7 | 24.0 | 24.0 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1984 | 1971 | 1993 | 1975 | 1986 | 1984 | 1985 | 1990 | 1990 |
| Mean Min. Temperature (F) | 25.6 | 26.6 | 28.7 | 31.3 | 36.8 | 41.8 | 46.4 | 46.6 | 42.1 | 35.8 | 30.1 | 26.1 | 34.8 |
| Highest Mean Min. Temperature (F) | 31.8 | 33.3 | 33.6 | 36.2 | 41.7 | 47.3 | 50.9 | 49.3 | 46.2 | 41.9 | 34.0 | 31.2 | 50.9 |
| Year Highest Occurred | 1994 | 1992 | 1992 | 1992 | 1992 | 1992 | 1998 | 1981 | 1995 | 1988 | 1995 | 1979 | 1998 |
| Lowest Mean Min. Temperature (F) | 18.7 | 19.4 | 25.2 | 26.7 | 32.0 | 37.8 | 42.3 | 43.0 | 38.2 | 33.4 | 20.1 | 18.2 | 18.2 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1999 | 1976 | 1986 | 1995 | 1986 | 1972 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 11.23 | 8.87 | 7.00 | 5.84 | 4.54 | 3.62 | 1.96 | 1.73 | 4.26 | 6.99 | 12.72 | 12.06 | 80.82 |
| Highest Precipitation (in.) | 21.67 | 18.91 | 15.31 | 10.75 | 9.67 | 9.20 | 5.97 | 4.95 | 12.28 | 16.00 | 28.49 | 21.62 | 28.49 |
| Year Highest Occurred | 1990 | 1990 | 1997 | 1991 | 1984 | 1981 | 1983 | 1975 | 1978 | 1990 | 1995 | 1996 | 1995 |
| Lowest Precipitation (in.) | 0.86 | 0.53 | 1.80 | 2.42 | 1.22 | 0.80 | 0.03 | 0.05 | 0.04 | 0.20 | 2.71 | 2.89 | 0.03 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1998 | 1992 | 1979 | 1984 | 1981 | 1993 | 1987 | 1976 | 1985 | 1984 |
| Heating Degree Days (F) | 1055. | 883. | 870. | 722. | 539. | 351. | 196. | 172. | 314. | 595. | 877. | 1052. | 7626. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 3. | 28. | 21. | 10. | 0. | 0. | 0. | 62. |