| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.5 | 57.9 | 66.2 | 74.3 | 82.6 | 90.4 | 91.0 | 88.6 | 83.1 | 73.7 | 61.5 | 53.4 | 72.9 |
| Highest Mean Max. Temperature (F) | 61.8 | 67.1 | 73.8 | 80.2 | 92.0 | 99.1 | 98.0 | 93.6 | 90.8 | 79.3 | 71.3 | 59.7 | 99.1 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 2000 | 1996 | 1990 | 1980 | 2000 | 2000 | 1999 | 1999 | 1977 | 1990 |
| Lowest Mean Max. Temperature (F) | 42.9 | 49.4 | 60.5 | 65.3 | 76.3 | 85.5 | 84.4 | 83.0 | 75.4 | 67.7 | 52.9 | 46.2 | 42.9 |
| Year Lowest Occurred | 1979 | 1978 | 1973 | 1973 | 1992 | 1979 | 1991 | 1971 | 1974 | 1984 | 1972 | 1997 | 1979 |
| Mean Temperature (F) | 38.9 | 43.3 | 50.2 | 58.0 | 67.1 | 75.3 | 77.7 | 75.8 | 69.4 | 59.5 | 47.4 | 39.8 | 58.5 |
| Highest Mean Temperature (F) | 44.7 | 50.0 | 55.4 | 62.5 | 74.8 | 82.5 | 83.8 | 78.4 | 74.6 | 66.0 | 53.3 | 45.6 | 83.8 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 2000 | 1996 | 1990 | 1980 | 2000 | 1998 | 1998 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 30.9 | 37.8 | 46.5 | 51.0 | 62.8 | 71.8 | 73.5 | 70.3 | 63.3 | 53.5 | 38.6 | 33.2 | 30.9 |
| Year Lowest Occurred | 1979 | 1978 | 1987 | 1973 | 1973 | 1992 | 1991 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 25.3 | 28.7 | 34.2 | 41.7 | 51.5 | 60.1 | 64.3 | 63.0 | 55.7 | 45.3 | 33.2 | 26.1 | 44.1 |
| Highest Mean Min. Temperature (F) | 29.7 | 34.5 | 38.3 | 45.6 | 57.6 | 65.9 | 69.6 | 65.5 | 59.4 | 56.3 | 39.0 | 31.9 | 69.6 |
| Year Highest Occurred | 1999 | 1976 | 1974 | 1981 | 1996 | 1990 | 1980 | 1980 | 1997 | 1998 | 1981 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 18.9 | 24.1 | 29.5 | 36.5 | 47.0 | 55.6 | 61.7 | 57.6 | 51.2 | 38.9 | 24.4 | 19.8 | 18.9 |
| Year Lowest Occurred | 1979 | 1972 | 1996 | 1984 | 1983 | 1972 | 1976 | 1971 | 1972 | 1976 | 1972 | 1989 | 1979 |
| Mean Precipitation (in.) | 0.51 | 0.37 | 0.43 | 0.72 | 1.43 | 2.26 | 3.06 | 2.49 | 2.14 | 1.37 | 0.75 | 0.54 | 16.07 |
| Highest Precipitation (in.) | 2.28 | 1.68 | 2.00 | 3.92 | 5.92 | 5.90 | 11.05 | 6.99 | 6.31 | 5.52 | 2.43 | 2.05 | 11.05 |
| Year Highest Occurred | 1992 | 1987 | 1985 | 1997 | 1988 | 1986 | 1991 | 1993 | 1980 | 1983 | 1986 | 1991 | 1991 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1997 | 1996 | 2000 | 1990 | 1980 | 1983 | 2000 | 1989 | 1999 | 1996 | 2000 |
| Heating Degree Days (F) | 809. | 609. | 460. | 237. | 73. | 7. | 0. | 1. | 40. | 198. | 532. | 783. | 3749. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 27. | 136. | 314. | 391. | 336. | 173. | 28. | 2. | 0. | 1407. |