| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 52.2 | 57.8 | 65.7 | 74.1 | 81.9 | 90.1 | 92.6 | 90.1 | 84.5 | 75.2 | 61.5 | 52.7 | 73.2 |
| Highest Mean Max. Temperature (F) | 61.3 | 68.7 | 74.1 | 79.7 | 92.4 | 98.0 | 98.3 | 96.1 | 92.0 | 81.3 | 70.5 | 63.1 | 98.3 |
| Year Highest Occurred | 1986 | 2000 | 1989 | 1978 | 1996 | 1998 | 1980 | 1983 | 2000 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 41.7 | 43.8 | 59.7 | 65.9 | 77.3 | 84.1 | 84.8 | 83.7 | 76.7 | 67.4 | 51.0 | 42.5 | 41.7 |
| Year Lowest Occurred | 1979 | 1978 | 1990 | 1997 | 1990 | 1989 | 1990 | 1971 | 1991 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 38.0 | 42.9 | 50.1 | 58.4 | 67.2 | 75.9 | 79.3 | 77.3 | 70.9 | 60.5 | 47.4 | 39.0 | 58.9 |
| Highest Mean Temperature (F) | 44.9 | 50.6 | 55.6 | 63.5 | 75.5 | 81.1 | 84.3 | 82.2 | 77.0 | 64.2 | 54.0 | 46.8 | 84.3 |
| Year Highest Occurred | 1986 | 1976 | 1974 | 1981 | 1996 | 1998 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 29.0 | 33.1 | 46.3 | 52.0 | 62.6 | 71.4 | 73.0 | 72.5 | 64.4 | 54.5 | 40.3 | 30.1 | 29.0 |
| Year Lowest Occurred | 1979 | 1978 | 1990 | 1997 | 1990 | 1989 | 1990 | 1971 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 23.7 | 27.9 | 34.5 | 42.7 | 52.5 | 61.6 | 66.0 | 64.5 | 57.2 | 45.7 | 33.3 | 25.3 | 44.6 |
| Highest Mean Min. Temperature (F) | 29.5 | 33.7 | 38.5 | 47.7 | 58.5 | 65.8 | 70.3 | 68.3 | 62.3 | 50.6 | 38.9 | 30.5 | 70.3 |
| Year Highest Occurred | 1999 | 1976 | 1986 | 1981 | 1996 | 1980 | 1980 | 2000 | 1998 | 1998 | 1998 | 1984 | 1980 |
| Lowest Mean Min. Temperature (F) | 16.3 | 22.3 | 30.2 | 36.6 | 46.9 | 57.1 | 61.1 | 60.1 | 52.0 | 39.6 | 28.0 | 16.2 | 16.2 |
| Year Lowest Occurred | 1979 | 1978 | 1996 | 1983 | 1983 | 1983 | 1990 | 1990 | 1974 | 1976 | 1976 | 1989 | 1989 |
| Mean Precipitation (in.) | 0.46 | 0.52 | 0.99 | 1.08 | 2.89 | 2.96 | 2.39 | 2.84 | 1.97 | 1.78 | 0.69 | 0.62 | 19.19 |
| Highest Precipitation (in.) | 1.70 | 1.51 | 4.92 | 5.62 | 9.03 | 6.88 | 5.58 | 8.11 | 7.19 | 8.28 | 2.10 | 3.59 | 9.03 |
| Year Highest Occurred | 1983 | 1980 | 1973 | 1997 | 1978 | 1984 | 1993 | 1974 | 1985 | 1998 | 1971 | 1991 | 1978 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.09 | 0.00 | 0.02 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 2000 | 1997 | 1996 | 1984 | 1998 | 1980 | 2000 | 1998 | 1992 | 1999 | 1996 | 1986 |
| Heating Degree Days (F) | 840. | 620. | 462. | 229. | 75. | 4. | 0. | 2. | 31. | 174. | 529. | 805. | 3771. |
| Cooling Degree Days (F) | 0. | 0. | 1. | 31. | 143. | 330. | 442. | 383. | 205. | 33. | 0. | 0. | 1568. |