| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 42.5 | 48.3 | 56.1 | 65.1 | 73.8 | 85.1 | 91.1 | 89.5 | 81.2 | 69.7 | 52.3 | 44.2 | 66.6 |
| Highest Mean Max. Temperature (F) | 57.6 | 58.0 | 66.5 | 77.4 | 79.2 | 92.0 | 95.3 | 96.2 | 88.9 | 77.4 | 65.0 | 53.2 | 96.2 |
| Year Highest Occurred | 1981 | 1999 | 1982 | 1981 | 2000 | 1988 | 1980 | 1983 | 1983 | 1975 | 1999 | 1980 | 1983 |
| Lowest Mean Max. Temperature (F) | 31.5 | 34.9 | 50.1 | 56.4 | 61.5 | 77.0 | 84.4 | 82.0 | 72.0 | 62.8 | 40.2 | 28.8 | 28.8 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1984 | 1995 | 1982 | 1992 | 1992 | 1973 | 1984 | 1972 | 1983 | 1983 |
| Mean Temperature (F) | 27.0 | 32.4 | 39.8 | 48.8 | 58.7 | 69.8 | 75.4 | 73.5 | 64.1 | 51.5 | 36.6 | 29.0 | 50.6 |
| Highest Mean Temperature (F) | 37.0 | 39.7 | 45.7 | 57.3 | 63.7 | 75.4 | 77.9 | 77.9 | 70.4 | 54.9 | 45.5 | 35.3 | 77.9 |
| Year Highest Occurred | 1986 | 1976 | 1986 | 1981 | 1994 | 1988 | 1999 | 1983 | 1998 | 1974 | 1999 | 1999 | 1999 |
| Lowest Mean Temperature (F) | 13.9 | 21.2 | 33.6 | 42.5 | 51.2 | 64.0 | 71.7 | 69.4 | 58.5 | 47.8 | 28.1 | 15.3 | 13.9 |
| Year Lowest Occurred | 1979 | 1978 | 1980 | 1983 | 1995 | 1982 | 1992 | 1992 | 1993 | 1976 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 11.5 | 16.5 | 23.4 | 32.4 | 43.6 | 54.4 | 59.6 | 57.5 | 46.9 | 33.3 | 20.8 | 13.8 | 34.5 |
| Highest Mean Min. Temperature (F) | 18.3 | 25.4 | 27.6 | 37.2 | 49.2 | 59.6 | 62.7 | 60.5 | 52.5 | 38.0 | 29.4 | 20.3 | 62.7 |
| Year Highest Occurred | 1999 | 1992 | 2000 | 1981 | 1994 | 1991 | 1998 | 1995 | 1998 | 1994 | 1998 | 1999 | 1998 |
| Lowest Mean Min. Temperature (F) | -4.6 | 5.8 | 17.0 | 27.2 | 39.1 | 50.6 | 56.4 | 54.0 | 41.4 | 26.9 | 7.4 | 1.7 | -4.6 |
| Year Lowest Occurred | 1977 | 1978 | 1980 | 1977 | 1977 | 1983 | 1978 | 1974 | 1974 | 1978 | 1976 | 1983 | 1977 |
| Mean Precipitation (in.) | 0.51 | 0.41 | 1.16 | 1.77 | 3.02 | 2.56 | 2.91 | 1.97 | 1.13 | 0.99 | 0.75 | 0.36 | 17.54 |
| Highest Precipitation (in.) | 1.80 | 1.54 | 5.46 | 5.00 | 8.26 | 7.15 | 8.13 | 5.56 | 3.33 | 3.75 | 2.33 | 1.43 | 8.26 |
| Year Highest Occurred | 1992 | 1971 | 1981 | 1984 | 1982 | 1982 | 1973 | 1999 | 1973 | 2000 | 1972 | 1982 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.01 | 0.16 | 0.29 | 0.28 | 0.29 | 0.47 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1993 | 1977 | 1997 | 1988 | 2000 | 1985 | 1984 | 1973 | 1984 | 1975 | 1984 | 1995 | 1993 |
| Heating Degree Days (F) | 1178. | 904. | 783. | 491. | 223. | 32. | 0. | 7. | 109. | 419. | 854. | 1116. | 6116. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 27. | 174. | 321. | 270. | 80. | 1. | 0. | 0. | 875. |