| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.8 | 56.9 | 63.8 | 71.1 | 80.1 | 89.8 | 92.9 | 90.8 | 83.4 | 73.9 | 61.0 | 52.1 | 72.3 |
| Highest Mean Max. Temperature (F) | 59.5 | 65.4 | 72.5 | 77.9 | 89.9 | 98.8 | 98.3 | 96.9 | 91.7 | 79.6 | 71.0 | 59.1 | 98.8 |
| Year Highest Occurred | 2000 | 2000 | 1989 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1994 | 1990 |
| Lowest Mean Max. Temperature (F) | 43.3 | 47.8 | 57.3 | 62.4 | 73.5 | 82.6 | 88.0 | 85.9 | 77.1 | 64.8 | 49.9 | 43.1 | 43.1 |
| Year Lowest Occurred | 1979 | 1983 | 1983 | 1983 | 1983 | 1983 | 1975 | 1971 | 1974 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 36.8 | 41.6 | 48.9 | 56.7 | 66.0 | 75.4 | 79.3 | 77.5 | 70.0 | 59.3 | 46.5 | 37.8 | 58.0 |
| Highest Mean Temperature (F) | 43.1 | 49.3 | 54.3 | 61.2 | 73.3 | 81.9 | 84.4 | 81.9 | 76.4 | 62.6 | 53.7 | 43.8 | 84.4 |
| Year Highest Occurred | 2000 | 2000 | 1989 | 1992 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1994 | 1980 |
| Lowest Mean Temperature (F) | 28.9 | 35.3 | 45.4 | 49.4 | 60.6 | 70.0 | 76.0 | 73.7 | 65.0 | 53.4 | 38.7 | 30.6 | 28.9 |
| Year Lowest Occurred | 1979 | 1985 | 1984 | 1973 | 1983 | 1983 | 1975 | 1971 | 1974 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 21.8 | 26.2 | 33.9 | 42.3 | 51.9 | 61.0 | 65.6 | 64.1 | 56.5 | 44.7 | 32.0 | 23.4 | 43.6 |
| Highest Mean Min. Temperature (F) | 26.7 | 33.1 | 38.0 | 47.3 | 56.8 | 65.0 | 70.5 | 67.3 | 61.1 | 49.9 | 38.6 | 29.4 | 70.5 |
| Year Highest Occurred | 2000 | 2000 | 1986 | 1981 | 2000 | 1990 | 1980 | 1995 | 1998 | 1998 | 1998 | 1998 | 1980 |
| Lowest Mean Min. Temperature (F) | 14.5 | 21.6 | 30.9 | 35.8 | 47.6 | 57.4 | 62.8 | 60.8 | 52.9 | 40.0 | 25.1 | 18.0 | 14.5 |
| Year Lowest Occurred | 1979 | 1985 | 1971 | 1973 | 1983 | 1983 | 1992 | 1973 | 1974 | 1976 | 1976 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.41 | 0.39 | 0.79 | 0.87 | 1.64 | 2.02 | 2.67 | 2.64 | 1.66 | 1.18 | 0.77 | 0.47 | 15.51 |
| Highest Precipitation (in.) | 1.77 | 1.51 | 2.87 | 4.39 | 4.00 | 5.90 | 6.78 | 5.74 | 5.38 | 5.47 | 3.04 | 1.92 | 6.78 |
| Year Highest Occurred | 1987 | 1986 | 1985 | 1997 | 1987 | 1978 | 1996 | 1990 | 1972 | 2000 | 1986 | 1997 | 1996 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.35 | 0.07 | 0.01 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 2000 | 2000 | 1996 | 1996 | 1974 | 1998 | 1978 | 1973 | 2000 | 1975 | 1989 | 1985 | 2000 |
| Heating Degree Days (F) | 876. | 656. | 501. | 270. | 91. | 7. | 0. | 0. | 29. | 203. | 557. | 846. | 4036. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 20. | 121. | 320. | 442. | 385. | 178. | 26. | 2. | 0. | 1494. |