| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.0 | 43.5 | 47.3 | 54.2 | 62.8 | 72.2 | 81.3 | 80.8 | 73.8 | 62.8 | 47.6 | 41.3 | 59.1 |
| Highest Mean Max. Temperature (F) | 48.6 | 55.9 | 54.8 | 63.0 | 75.4 | 80.3 | 85.7 | 86.7 | 83.1 | 73.5 | 60.4 | 50.8 | 86.7 |
| Year Highest Occurred | 1992 | 1991 | 1990 | 1987 | 1992 | 1974 | 1972 | 1971 | 1991 | 1988 | 1995 | 1976 | 1971 |
| Lowest Mean Max. Temperature (F) | 32.9 | 37.2 | 38.1 | 42.5 | 52.3 | 64.2 | 73.5 | 74.0 | 60.8 | 48.6 | 35.8 | 32.2 | 32.2 |
| Year Lowest Occurred | 1982 | 1985 | 1983 | 1983 | 1998 | 1982 | 1982 | 1977 | 1985 | 1984 | 1985 | 1983 | 1983 |
| Mean Temperature (F) | 29.6 | 32.1 | 35.4 | 40.6 | 47.9 | 56.2 | 63.1 | 62.6 | 55.9 | 46.8 | 35.6 | 29.8 | 44.6 |
| Highest Mean Temperature (F) | 37.1 | 40.7 | 41.7 | 46.6 | 55.1 | 61.3 | 67.4 | 67.0 | 61.1 | 54.3 | 44.6 | 37.2 | 67.4 |
| Year Highest Occurred | 1981 | 1991 | 1978 | 1990 | 1992 | 1977 | 1988 | 1971 | 1991 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 21.4 | 24.7 | 29.4 | 32.9 | 41.2 | 51.2 | 56.0 | 58.0 | 46.0 | 38.0 | 24.5 | 23.1 | 21.4 |
| Year Lowest Occurred | 1982 | 1989 | 1985 | 1975 | 1977 | 1982 | 1983 | 1976 | 1985 | 1984 | 1985 | 1992 | 1982 |
| Mean Min. Temperature (F) | 18.2 | 20.7 | 23.4 | 27.0 | 32.9 | 40.2 | 44.9 | 44.3 | 37.9 | 30.8 | 23.6 | 18.2 | 30.2 |
| Highest Mean Min. Temperature (F) | 25.6 | 26.7 | 29.3 | 31.8 | 38.1 | 44.7 | 49.6 | 48.1 | 44.8 | 35.2 | 33.2 | 25.3 | 49.6 |
| Year Highest Occurred | 1981 | 2000 | 1978 | 1990 | 1997 | 1977 | 1998 | 1998 | 1998 | 1979 | 1999 | 1995 | 1998 |
| Lowest Mean Min. Temperature (F) | 6.8 | 12.0 | 16.5 | 21.5 | 28.4 | 36.2 | 38.3 | 40.0 | 31.1 | 24.5 | 13.2 | 7.1 | 6.8 |
| Year Lowest Occurred | 1989 | 1990 | 1976 | 1975 | 1977 | 1976 | 1983 | 1979 | 1985 | 1985 | 1985 | 1990 | 1989 |
| Mean Precipitation (in.) | 1.91 | 1.70 | 2.14 | 1.97 | 2.37 | 1.48 | 0.52 | 0.64 | 0.96 | 1.30 | 2.08 | 1.99 | 19.06 |
| Highest Precipitation (in.) | 4.69 | 4.16 | 4.25 | 4.89 | 6.80 | 3.84 | 2.25 | 2.61 | 2.71 | 2.80 | 5.32 | 7.04 | 7.04 |
| Year Highest Occurred | 1996 | 1986 | 1983 | 1978 | 1998 | 1993 | 1987 | 1976 | 1971 | 2000 | 1994 | 1983 | 1983 |
| Lowest Precipitation (in.) | 0.40 | 0.21 | 0.99 | 0.41 | 0.24 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.15 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1988 | 1980 | 1978 | 1986 | 1999 | 1995 | 1995 | 1978 | 1995 | 1976 | 1986 |
| Heating Degree Days (F) | 1099. | 921. | 919. | 733. | 532. | 279. | 125. | 127. | 299. | 566. | 882. | 1093. | 7575. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 14. | 68. | 50. | 24. | 2. | 0. | 0. | 158. |