| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.7 | 49.1 | 55.8 | 62.7 | 71.7 | 82.2 | 87.2 | 85.0 | 77.4 | 66.7 | 52.6 | 46.1 | 65.2 |
| Highest Mean Max. Temperature (F) | 57.7 | 55.0 | 63.0 | 72.0 | 78.1 | 90.0 | 91.2 | 91.4 | 84.6 | 71.7 | 63.4 | 57.7 | 91.4 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1984 | 1980 | 1980 | 1983 | 1983 | 1983 | 1999 | 1980 | 1983 |
| Lowest Mean Max. Temperature (F) | 36.3 | 35.9 | 50.4 | 55.9 | 63.0 | 76.6 | 81.9 | 80.4 | 73.1 | 59.4 | 42.1 | 33.2 | 33.2 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1995 | 1990 | 1992 | 1999 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 32.5 | 35.8 | 41.8 | 48.3 | 56.9 | 66.4 | 71.6 | 70.0 | 62.1 | 51.9 | 39.7 | 33.4 | 50.9 |
| Highest Mean Temperature (F) | 41.8 | 41.7 | 48.2 | 55.8 | 61.3 | 70.8 | 74.4 | 74.6 | 67.1 | 55.5 | 47.9 | 43.1 | 74.6 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 2000 | 1980 | 2000 | 1983 | 1998 | 1979 | 1999 | 1980 | 1983 |
| Lowest Mean Temperature (F) | 21.6 | 23.5 | 37.9 | 42.6 | 51.2 | 61.4 | 67.7 | 65.8 | 58.2 | 46.2 | 30.4 | 21.5 | 21.5 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1973 | 1995 | 1982 | 1992 | 1992 | 1985 | 1984 | 1985 | 1983 | 1983 |
| Mean Min. Temperature (F) | 19.2 | 22.5 | 27.7 | 33.9 | 42.0 | 50.5 | 55.9 | 55.0 | 46.8 | 37.1 | 26.8 | 20.6 | 36.5 |
| Highest Mean Min. Temperature (F) | 26.8 | 28.3 | 33.4 | 39.5 | 46.0 | 54.6 | 58.9 | 58.1 | 51.8 | 40.6 | 34.7 | 28.6 | 58.9 |
| Year Highest Occurred | 1999 | 1999 | 1986 | 1981 | 2000 | 1988 | 2000 | 1995 | 1998 | 1974 | 1998 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 7.0 | 11.2 | 23.5 | 28.8 | 38.2 | 46.0 | 52.2 | 51.2 | 42.3 | 33.1 | 18.7 | 9.8 | 7.0 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1983 | 1982 | 1992 | 1992 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.70 | 0.75 | 1.78 | 2.88 | 3.05 | 1.99 | 1.88 | 1.63 | 1.79 | 1.28 | 1.42 | 0.78 | 19.93 |
| Highest Precipitation (in.) | 2.19 | 2.44 | 5.17 | 6.01 | 9.59 | 6.04 | 4.75 | 5.54 | 4.36 | 4.25 | 3.46 | 2.16 | 9.59 |
| Year Highest Occurred | 1996 | 1987 | 1992 | 1971 | 1995 | 1987 | 1977 | 1999 | 1982 | 1984 | 1983 | 1988 | 1995 |
| Lowest Precipitation (in.) | 0.02 | 0.00 | 0.43 | 0.33 | 0.00 | 0.32 | 0.00 | 0.03 | 0.02 | 0.03 | 0.01 | 0.01 | 0.00 |
| Year Lowest Occurred | 1982 | 1992 | 1991 | 1982 | 1974 | 1980 | 1979 | 1985 | 1992 | 1988 | 1984 | 1991 | 1992 |
| Heating Degree Days (F) | 1010. | 818. | 722. | 501. | 265. | 68. | 3. | 19. | 136. | 406. | 758. | 981. | 5687. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 13. | 109. | 206. | 174. | 49. | 1. | 0. | 0. | 552. |