| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.6 | 44.6 | 51.3 | 58.9 | 66.9 | 76.0 | 85.4 | 85.1 | 77.0 | 65.1 | 47.6 | 39.9 | 61.5 |
| Highest Mean Max. Temperature (F) | 46.3 | 53.7 | 58.7 | 68.9 | 77.1 | 84.0 | 91.0 | 91.3 | 83.4 | 76.6 | 58.3 | 47.1 | 91.3 |
| Year Highest Occurred | 1994 | 1991 | 1992 | 1987 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1976 | 1989 | 1971 |
| Lowest Mean Max. Temperature (F) | 30.7 | 35.0 | 45.1 | 50.3 | 58.0 | 69.5 | 74.0 | 75.6 | 66.7 | 55.9 | 37.9 | 33.3 | 30.7 |
| Year Lowest Occurred | 1979 | 1993 | 1975 | 1975 | 1977 | 1980 | 1993 | 1976 | 1985 | 1984 | 1985 | 1983 | 1979 |
| Mean Temperature (F) | 29.3 | 33.9 | 38.9 | 44.1 | 50.9 | 58.3 | 65.4 | 64.7 | 56.8 | 47.5 | 36.3 | 29.5 | 46.3 |
| Highest Mean Temperature (F) | 35.5 | 40.5 | 43.6 | 50.3 | 57.2 | 63.5 | 69.7 | 69.2 | 61.9 | 55.3 | 44.3 | 34.9 | 69.7 |
| Year Highest Occurred | 1994 | 1991 | 1986 | 1987 | 1992 | 1986 | 1985 | 1971 | 1990 | 1988 | 1999 | 1980 | 1985 |
| Lowest Mean Temperature (F) | 17.9 | 22.9 | 34.5 | 37.9 | 45.2 | 54.1 | 57.3 | 59.5 | 50.1 | 42.3 | 24.6 | 21.7 | 17.9 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1977 | 1991 | 1993 | 1980 | 1985 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 19.0 | 23.2 | 26.5 | 29.3 | 34.9 | 40.5 | 45.4 | 44.2 | 36.6 | 29.9 | 25.0 | 19.0 | 31.1 |
| Highest Mean Min. Temperature (F) | 25.6 | 28.9 | 30.7 | 33.1 | 39.2 | 45.1 | 50.5 | 48.3 | 41.3 | 35.7 | 32.6 | 26.7 | 50.5 |
| Year Highest Occurred | 1995 | 1980 | 1983 | 1988 | 1997 | 1992 | 1998 | 1991 | 1994 | 1979 | 1999 | 1973 | 1998 |
| Lowest Mean Min. Temperature (F) | 5.0 | 10.2 | 22.3 | 24.0 | 31.7 | 36.8 | 40.6 | 38.3 | 31.3 | 25.8 | 11.2 | 7.9 | 5.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1982 | 1999 | 1976 | 1993 | 1980 | 1971 | 1974 | 1985 | 1985 | 1979 |
| Mean Precipitation (in.) | 1.44 | 1.10 | 1.24 | 1.05 | 1.42 | 1.04 | 0.79 | 0.86 | 0.68 | 0.86 | 1.62 | 1.62 | 13.72 |
| Highest Precipitation (in.) | 3.96 | 2.57 | 3.08 | 2.36 | 4.74 | 3.31 | 3.47 | 4.77 | 2.87 | 2.18 | 3.67 | 4.97 | 4.97 |
| Year Highest Occurred | 1995 | 1986 | 1993 | 1993 | 1998 | 1980 | 1987 | 1976 | 1986 | 1984 | 1983 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.29 | 0.28 | 0.35 | 0.17 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.19 | 0.00 |
| Year Lowest Occurred | 1974 | 1971 | 1977 | 1973 | 1975 | 1973 | 1994 | 2000 | 1999 | 1988 | 1976 | 1989 | 1994 |
| Heating Degree Days (F) | 1108. | 871. | 810. | 628. | 437. | 222. | 86. | 92. | 266. | 543. | 861. | 1102. | 7026. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 21. | 98. | 80. | 20. | 0. | 0. | 0. | 220. |