| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 39.0 | 41.4 | 46.8 | 53.7 | 63.3 | 74.5 | 79.2 | 76.7 | 69.4 | 60.0 | 46.1 | 39.4 | 57.5 |
| Highest Mean Max. Temperature (F) | 47.4 | 49.5 | 57.3 | 60.5 | 71.9 | 80.3 | 83.6 | 81.9 | 76.7 | 63.8 | 58.6 | 49.8 | 83.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 30.7 | 34.4 | 40.3 | 46.2 | 58.1 | 69.9 | 75.7 | 73.3 | 65.1 | 50.6 | 36.4 | 30.2 | 30.2 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1983 | 1990 | 1993 | 1986 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 28.2 | 30.3 | 34.9 | 41.3 | 50.1 | 60.1 | 65.1 | 63.7 | 56.4 | 47.6 | 35.7 | 28.9 | 45.2 |
| Highest Mean Temperature (F) | 35.2 | 36.4 | 43.1 | 47.9 | 56.8 | 64.9 | 68.7 | 67.7 | 61.1 | 50.6 | 44.1 | 37.5 | 68.7 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1981 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 20.3 | 23.0 | 30.5 | 35.4 | 45.8 | 56.2 | 62.4 | 60.8 | 52.9 | 42.7 | 28.2 | 21.5 | 20.3 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1983 | 1990 | 1974 | 1971 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 17.4 | 19.2 | 22.9 | 28.8 | 36.8 | 45.7 | 51.0 | 50.6 | 43.4 | 35.1 | 25.2 | 18.3 | 32.9 |
| Highest Mean Min. Temperature (F) | 24.7 | 24.8 | 29.0 | 35.3 | 41.7 | 49.8 | 54.2 | 53.8 | 47.8 | 38.0 | 31.7 | 25.2 | 54.2 |
| Year Highest Occurred | 1999 | 1999 | 1989 | 1981 | 1996 | 1994 | 2000 | 1983 | 1997 | 1983 | 1981 | 1980 | 2000 |
| Lowest Mean Min. Temperature (F) | 9.9 | 11.6 | 18.7 | 24.6 | 33.2 | 42.6 | 48.8 | 47.6 | 39.8 | 31.2 | 16.8 | 10.1 | 9.9 |
| Year Lowest Occurred | 1979 | 1989 | 1988 | 1973 | 1983 | 1983 | 1995 | 1974 | 1975 | 1993 | 2000 | 1990 | 1979 |
| Mean Precipitation (in.) | 0.43 | 0.53 | 1.07 | 1.04 | 1.35 | 0.90 | 1.91 | 2.26 | 0.77 | 0.88 | 1.02 | 0.46 | 12.62 |
| Highest Precipitation (in.) | 1.94 | 2.38 | 3.67 | 2.26 | 4.49 | 2.68 | 4.40 | 5.56 | 1.91 | 2.17 | 2.86 | 1.06 | 5.56 |
| Year Highest Occurred | 1997 | 1989 | 1995 | 1999 | 1993 | 1988 | 1990 | 1994 | 1997 | 1984 | 1997 | 1990 | 1994 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.13 | 0.28 | 0.20 | 0.00 | 0.15 | 0.86 | 0.15 | 0.00 | 0.04 | 0.09 | 0.00 |
| Year Lowest Occurred | 1995 | 2000 | 1989 | 1988 | 2000 | 1998 | 1994 | 1978 | 1992 | 1995 | 1989 | 1995 | 1995 |
| Heating Degree Days (F) | 1141. | 972. | 935. | 712. | 464. | 167. | 49. | 81. | 265. | 542. | 881. | 1121. | 7330. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 19. | 53. | 40. | 7. | 0. | 0. | 0. | 120. |