| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.1 | 55.9 | 62.2 | 69.4 | 77.3 | 85.3 | 85.1 | 83.1 | 77.6 | 70.3 | 59.5 | 53.3 | 69.3 |
| Highest Mean Max. Temperature (F) | 58.4 | 62.4 | 68.3 | 75.3 | 85.6 | 92.7 | 90.5 | 88.0 | 83.8 | 76.5 | 66.4 | 59.1 | 92.7 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1989 | 1996 | 1990 | 1994 | 1994 | 2000 | 1992 | 1999 | 1981 | 1990 |
| Lowest Mean Max. Temperature (F) | 43.8 | 49.6 | 56.9 | 62.8 | 72.0 | 80.5 | 78.7 | 76.4 | 69.7 | 63.1 | 50.8 | 48.0 | 43.8 |
| Year Lowest Occurred | 1979 | 1973 | 1973 | 1983 | 1992 | 1979 | 1975 | 1971 | 1974 | 1976 | 1976 | 1997 | 1979 |
| Mean Temperature (F) | 41.4 | 45.1 | 50.0 | 57.6 | 65.7 | 73.2 | 73.7 | 72.1 | 67.0 | 59.3 | 48.9 | 42.0 | 58.0 |
| Highest Mean Temperature (F) | 45.5 | 50.6 | 55.1 | 62.6 | 75.5 | 80.8 | 77.4 | 77.0 | 71.3 | 64.0 | 54.9 | 48.0 | 80.8 |
| Year Highest Occurred | 1998 | 1995 | 1989 | 1989 | 1996 | 1994 | 1980 | 1994 | 1977 | 1995 | 1995 | 1994 | 1994 |
| Lowest Mean Temperature (F) | 35.1 | 41.2 | 46.1 | 51.8 | 61.6 | 69.5 | 69.3 | 68.1 | 60.4 | 53.3 | 41.8 | 36.5 | 35.1 |
| Year Lowest Occurred | 1979 | 1997 | 1987 | 1973 | 1976 | 1979 | 1975 | 1971 | 1974 | 1976 | 1976 | 1997 | 1979 |
| Mean Min. Temperature (F) | 30.6 | 34.2 | 37.8 | 45.7 | 54.1 | 61.0 | 62.3 | 61.1 | 56.4 | 48.3 | 38.3 | 30.6 | 46.7 |
| Highest Mean Min. Temperature (F) | 34.5 | 40.3 | 42.6 | 50.6 | 65.4 | 69.2 | 65.8 | 65.9 | 60.0 | 52.8 | 43.9 | 38.6 | 69.2 |
| Year Highest Occurred | 1998 | 1995 | 1989 | 1981 | 1996 | 1994 | 1995 | 1994 | 1977 | 1995 | 1995 | 1994 | 1994 |
| Lowest Mean Min. Temperature (F) | 26.4 | 28.6 | 33.5 | 40.0 | 50.1 | 56.1 | 59.8 | 58.6 | 51.2 | 42.0 | 30.3 | 24.2 | 24.2 |
| Year Lowest Occurred | 1979 | 1974 | 1988 | 1997 | 1975 | 2000 | 1990 | 1979 | 1974 | 2000 | 2000 | 2000 | 2000 |
| Mean Precipitation (in.) | 0.47 | 0.69 | 0.39 | 0.42 | 0.91 | 1.43 | 2.57 | 3.08 | 2.25 | 1.50 | 1.13 | 0.83 | 15.67 |
| Highest Precipitation (in.) | 2.95 | 1.86 | 1.76 | 1.68 | 3.98 | 5.97 | 5.27 | 7.86 | 7.49 | 3.97 | 3.75 | 3.38 | 7.86 |
| Year Highest Occurred | 1992 | 1980 | 1987 | 1988 | 1992 | 1996 | 1988 | 1991 | 1990 | 1990 | 1978 | 1997 | 1991 |
| Lowest Precipitation (in.) | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.82 | 0.78 | 0.23 | 0.04 | 0.00 | 0.05 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 2000 | 1989 | 1996 | 1990 | 2000 | 1994 | 1998 | 1995 | 1999 | 1976 | 1999 |
| Heating Degree Days (F) | 733. | 558. | 465. | 244. | 96. | 13. | 4. | 9. | 56. | 198. | 486. | 715. | 3577. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 20. | 118. | 257. | 273. | 230. | 116. | 21. | 3. | 0. | 1038. |