| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 37.7 | 42.3 | 49.6 | 57.9 | 67.4 | 78.5 | 82.9 | 80.5 | 72.9 | 61.4 | 47.3 | 39.1 | 59.8 |
| Highest Mean Max. Temperature (F) | 46.3 | 49.8 | 57.9 | 64.8 | 74.4 | 83.7 | 86.6 | 84.1 | 79.0 | 67.2 | 58.5 | 48.6 | 86.6 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1981 | 2000 | 1990 | 2000 | 1994 | 1979 | 1999 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 28.9 | 38.0 | 43.3 | 50.9 | 60.1 | 73.7 | 78.9 | 76.0 | 67.7 | 52.6 | 40.1 | 31.9 | 28.9 |
| Year Lowest Occurred | 1979 | 1975 | 1975 | 1975 | 1995 | 1983 | 1992 | 1999 | 1986 | 1984 | 1992 | 1978 | 1979 |
| Mean Temperature (F) | 25.0 | 30.2 | 37.3 | 44.3 | 52.6 | 61.9 | 67.2 | 65.5 | 58.2 | 47.2 | 34.7 | 26.6 | 45.9 |
| Highest Mean Temperature (F) | 32.6 | 37.7 | 42.7 | 50.3 | 58.6 | 66.7 | 69.7 | 68.7 | 61.8 | 51.4 | 42.4 | 35.6 | 69.7 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1992 | 1996 | 1990 | 1996 | 1994 | 1990 | 1988 | 1999 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 16.9 | 22.1 | 32.9 | 39.5 | 47.8 | 58.0 | 64.7 | 63.2 | 53.7 | 41.5 | 28.3 | 19.0 | 16.9 |
| Year Lowest Occurred | 1979 | 1974 | 1975 | 1975 | 1995 | 1995 | 1992 | 1976 | 1971 | 1984 | 1979 | 1978 | 1979 |
| Mean Min. Temperature (F) | 12.3 | 18.0 | 25.0 | 30.6 | 37.7 | 45.3 | 51.5 | 50.4 | 43.4 | 33.0 | 22.0 | 14.0 | 31.9 |
| Highest Mean Min. Temperature (F) | 20.0 | 25.5 | 29.8 | 40.0 | 43.2 | 51.9 | 54.6 | 54.3 | 47.7 | 36.8 | 26.4 | 22.5 | 54.6 |
| Year Highest Occurred | 1981 | 1995 | 1978 | 1978 | 1996 | 1978 | 1977 | 1977 | 1990 | 1974 | 1977 | 1980 | 1977 |
| Lowest Mean Min. Temperature (F) | 4.1 | 5.4 | 19.9 | 26.1 | 33.3 | 41.4 | 48.4 | 47.7 | 37.2 | 27.7 | 15.4 | 6.1 | 4.1 |
| Year Lowest Occurred | 1973 | 1974 | 1987 | 1984 | 1972 | 1981 | 1973 | 1978 | 1971 | 1982 | 2000 | 1978 | 1973 |
| Mean Precipitation (in.) | 1.07 | 0.71 | 1.21 | 1.17 | 1.30 | 0.87 | 1.92 | 1.90 | 1.66 | 1.72 | 1.41 | 0.85 | 15.79 |
| Highest Precipitation (in.) | 3.20 | 2.07 | 3.72 | 3.58 | 4.22 | 2.81 | 5.19 | 4.19 | 4.03 | 4.36 | 3.01 | 2.35 | 5.19 |
| Year Highest Occurred | 1974 | 1994 | 1995 | 1999 | 1992 | 1984 | 1999 | 1999 | 1981 | 1972 | 1986 | 1983 | 1999 |
| Lowest Precipitation (in.) | 0.20 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.21 | 0.00 | 0.02 | 0.07 | 0.00 | 0.03 | 0.00 |
| Year Lowest Occurred | 1986 | 1991 | 1988 | 1989 | 1974 | 1980 | 1994 | 1978 | 1979 | 1976 | 1989 | 1976 | 1991 |
| Heating Degree Days (F) | 1240. | 975. | 859. | 623. | 388. | 132. | 19. | 42. | 215. | 551. | 912. | 1193. | 7149. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 2. | 39. | 86. | 57. | 9. | 0. | 0. | 0. | 193. |