| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.7 | 48.8 | 57.8 | 66.0 | 75.8 | 86.7 | 90.7 | 87.9 | 80.5 | 68.0 | 53.0 | 42.9 | 66.7 |
| Highest Mean Max. Temperature (F) | 50.2 | 57.6 | 66.7 | 74.0 | 81.6 | 90.9 | 93.7 | 91.4 | 85.8 | 73.7 | 62.5 | 51.1 | 93.7 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1989 | 2000 | 1990 | 1989 | 2000 | 1998 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 33.4 | 41.8 | 51.2 | 60.2 | 71.2 | 82.6 | 86.3 | 84.0 | 75.3 | 58.3 | 45.6 | 34.7 | 33.4 |
| Year Lowest Occurred | 1979 | 1982 | 1973 | 1983 | 1995 | 1983 | 1992 | 1999 | 1986 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 29.8 | 36.0 | 43.0 | 50.0 | 59.7 | 69.4 | 74.9 | 72.8 | 65.2 | 53.1 | 40.0 | 30.8 | 52.1 |
| Highest Mean Temperature (F) | 36.0 | 43.0 | 48.6 | 56.3 | 63.9 | 72.9 | 78.1 | 75.8 | 69.5 | 57.8 | 45.2 | 37.2 | 78.1 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1994 | 1989 | 1994 | 1998 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 23.3 | 29.7 | 38.7 | 44.8 | 56.1 | 66.4 | 71.6 | 70.2 | 60.9 | 46.9 | 34.6 | 23.0 | 23.0 |
| Year Lowest Occurred | 1973 | 1974 | 1987 | 1983 | 1975 | 1995 | 1992 | 1999 | 1996 | 1984 | 1992 | 1990 | 1990 |
| Mean Min. Temperature (F) | 17.9 | 23.1 | 28.2 | 34.0 | 43.5 | 52.1 | 59.1 | 57.7 | 49.8 | 38.2 | 27.0 | 18.7 | 37.4 |
| Highest Mean Min. Temperature (F) | 25.6 | 28.4 | 32.8 | 39.2 | 48.0 | 55.4 | 62.7 | 60.6 | 55.1 | 42.3 | 32.0 | 23.9 | 62.7 |
| Year Highest Occurred | 1980 | 1995 | 1989 | 1992 | 1992 | 1994 | 1990 | 1994 | 1990 | 1972 | 1978 | 1984 | 1990 |
| Lowest Mean Min. Temperature (F) | 12.3 | 15.2 | 23.0 | 28.8 | 39.8 | 48.0 | 56.3 | 54.9 | 45.6 | 34.3 | 21.5 | 9.8 | 9.8 |
| Year Lowest Occurred | 1988 | 1974 | 1977 | 1975 | 1975 | 1998 | 1987 | 1974 | 1999 | 1976 | 1992 | 1990 | 1990 |
| Mean Precipitation (in.) | 0.51 | 0.46 | 0.72 | 0.59 | 0.54 | 0.22 | 0.97 | 1.16 | 1.03 | 1.00 | 0.77 | 0.42 | 8.39 |
| Highest Precipitation (in.) | 2.05 | 1.75 | 2.05 | 2.88 | 1.75 | 0.74 | 4.10 | 2.99 | 2.68 | 3.95 | 2.73 | 1.01 | 4.10 |
| Year Highest Occurred | 1993 | 1987 | 2000 | 1997 | 1992 | 1986 | 1986 | 1999 | 1997 | 1972 | 1986 | 1991 | 1986 |
| Lowest Precipitation (in.) | 0.00 | 0.05 | 0.02 | 0.00 | 0.00 | 0.00 | 0.03 | 0.18 | 0.08 | 0.01 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 1999 | 1988 | 1989 | 1996 | 1989 | 1993 | 1978 | 1979 | 1999 | 1989 | 1989 | 1981 |
| Heating Degree Days (F) | 1092. | 813. | 683. | 452. | 188. | 19. | 0. | 2. | 75. | 373. | 751. | 1060. | 5508. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 1. | 20. | 150. | 307. | 244. | 79. | 4. | 0. | 0. | 805. |