| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 55.1 | 60.6 | 68.1 | 76.2 | 83.7 | 90.5 | 92.0 | 89.9 | 83.5 | 75.3 | 64.1 | 56.7 | 74.6 |
| Highest Mean Max. Temperature (F) | 61.9 | 68.7 | 74.2 | 81.3 | 93.0 | 99.7 | 97.9 | 94.1 | 92.3 | 81.2 | 72.5 | 63.8 | 99.7 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1972 | 1996 | 1990 | 1980 | 2000 | 1977 | 1979 | 1999 | 1981 | 1990 |
| Lowest Mean Max. Temperature (F) | 47.3 | 53.3 | 62.4 | 69.2 | 77.3 | 83.5 | 84.7 | 81.2 | 73.1 | 69.0 | 56.2 | 50.4 | 47.3 |
| Year Lowest Occurred | 1979 | 1973 | 1981 | 1997 | 1973 | 1973 | 1975 | 1971 | 1974 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 40.7 | 45.1 | 51.6 | 59.7 | 68.6 | 75.9 | 78.5 | 76.5 | 70.3 | 60.9 | 49.3 | 42.1 | 59.9 |
| Highest Mean Temperature (F) | 45.9 | 51.2 | 56.2 | 63.6 | 76.5 | 83.3 | 83.0 | 79.2 | 75.4 | 63.7 | 53.7 | 47.3 | 83.3 |
| Year Highest Occurred | 1999 | 2000 | 1974 | 1986 | 1996 | 1990 | 1980 | 1977 | 1998 | 1998 | 1999 | 1977 | 1990 |
| Lowest Mean Temperature (F) | 35.4 | 40.6 | 46.9 | 53.5 | 63.9 | 70.0 | 73.2 | 71.4 | 62.3 | 54.0 | 43.1 | 37.0 | 35.4 |
| Year Lowest Occurred | 1979 | 1973 | 1987 | 1983 | 1973 | 1973 | 1975 | 1971 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Min. Temperature (F) | 26.2 | 29.6 | 35.0 | 43.2 | 53.5 | 61.3 | 64.9 | 63.1 | 57.0 | 46.4 | 34.4 | 27.4 | 45.2 |
| Highest Mean Min. Temperature (F) | 30.4 | 35.3 | 38.2 | 47.6 | 60.0 | 66.9 | 68.0 | 65.9 | 60.5 | 51.1 | 40.4 | 33.6 | 68.0 |
| Year Highest Occurred | 1993 | 1995 | 1974 | 1990 | 1996 | 1990 | 1980 | 1995 | 1998 | 1998 | 1978 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 21.3 | 25.2 | 30.7 | 36.9 | 46.8 | 56.4 | 61.7 | 59.1 | 49.0 | 39.0 | 28.0 | 22.0 | 21.3 |
| Year Lowest Occurred | 1977 | 1971 | 1971 | 1980 | 1983 | 1973 | 1975 | 1975 | 1975 | 1976 | 1979 | 1983 | 1977 |
| Mean Precipitation (in.) | 0.37 | 0.45 | 0.27 | 0.54 | 1.89 | 2.44 | 1.89 | 2.26 | 2.99 | 1.12 | 0.59 | 0.64 | 15.45 |
| Highest Precipitation (in.) | 1.33 | 1.82 | 0.85 | 2.20 | 6.61 | 6.97 | 12.31 | 8.13 | 7.35 | 3.67 | 2.15 | 3.90 | 12.31 |
| Year Highest Occurred | 1983 | 1973 | 1977 | 1981 | 1992 | 1986 | 1975 | 1984 | 1974 | 1974 | 1986 | 1991 | 1975 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.26 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 1996 | 1996 | 1991 | 1993 | 1990 | 1980 | 1994 | 1977 | 1991 | 1999 | 1996 | 1996 |
| Heating Degree Days (F) | 756. | 558. | 418. | 193. | 59. | 5. | 0. | 1. | 32. | 155. | 473. | 711. | 3361. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 33. | 170. | 333. | 417. | 357. | 189. | 26. | 1. | 0. | 1526. |