| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.0 | 38.9 | 44.6 | 51.0 | 61.3 | 72.1 | 77.2 | 75.4 | 68.5 | 57.7 | 42.5 | 34.8 | 54.8 |
| Highest Mean Max. Temperature (F) | 41.3 | 44.9 | 51.9 | 58.2 | 67.4 | 77.1 | 81.1 | 78.7 | 75.4 | 63.0 | 56.4 | 44.0 | 81.1 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 2000 | 2000 | 1977 | 1988 | 2000 | 1998 | 1999 | 1999 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 24.5 | 33.0 | 39.2 | 44.0 | 54.2 | 67.2 | 72.3 | 72.5 | 62.7 | 47.6 | 34.0 | 28.1 | 24.5 |
| Year Lowest Occurred | 1979 | 1985 | 1980 | 1973 | 1995 | 1983 | 1992 | 1993 | 1986 | 1984 | 1992 | 1978 | 1979 |
| Mean Temperature (F) | 20.7 | 25.1 | 31.7 | 37.9 | 47.4 | 56.4 | 61.7 | 60.5 | 53.6 | 43.4 | 29.8 | 21.7 | 40.8 |
| Highest Mean Temperature (F) | 26.9 | 32.2 | 38.1 | 44.0 | 52.7 | 61.2 | 64.6 | 63.6 | 58.9 | 46.8 | 39.9 | 31.0 | 64.6 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 2000 | 2000 | 1988 | 2000 | 2000 | 1998 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Temperature (F) | 12.7 | 19.1 | 27.2 | 32.3 | 42.4 | 52.5 | 56.8 | 57.4 | 50.3 | 37.3 | 22.6 | 15.1 | 12.7 |
| Year Lowest Occurred | 1979 | 1985 | 1977 | 1973 | 1983 | 1975 | 1992 | 1992 | 1985 | 1984 | 1992 | 1978 | 1979 |
| Mean Min. Temperature (F) | 7.4 | 11.2 | 18.8 | 24.8 | 33.5 | 40.6 | 46.2 | 45.6 | 38.6 | 29.1 | 17.0 | 8.6 | 26.8 |
| Highest Mean Min. Temperature (F) | 14.7 | 19.5 | 25.3 | 29.7 | 37.9 | 45.7 | 49.4 | 48.5 | 42.3 | 34.8 | 23.3 | 18.0 | 49.4 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 2000 | 2000 | 1988 | 1998 | 2000 | 1998 | 1972 | 1999 | 1980 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.8 | 4.2 | 13.3 | 20.3 | 29.8 | 36.0 | 39.6 | 41.3 | 34.7 | 25.1 | 10.2 | 2.1 | 0.8 |
| Year Lowest Occurred | 1979 | 1974 | 1977 | 1975 | 1975 | 1993 | 1993 | 1992 | 1993 | 1976 | 1979 | 1978 | 1979 |
| Mean Precipitation (in.) | 1.72 | 2.05 | 2.74 | 2.56 | 2.10 | 1.26 | 1.76 | 1.37 | 1.65 | 2.06 | 2.24 | 1.75 | 23.26 |
| Highest Precipitation (in.) | 3.64 | 4.73 | 5.53 | 4.10 | 5.41 | 4.35 | 4.26 | 3.45 | 5.08 | 5.47 | 5.05 | 4.87 | 5.53 |
| Year Highest Occurred | 1980 | 1996 | 1995 | 1986 | 1995 | 1984 | 1998 | 1984 | 1985 | 1984 | 1983 | 1983 | 1995 |
| Lowest Precipitation (in.) | 0.32 | 0.35 | 0.95 | 1.00 | 0.12 | 0.20 | 0.32 | 0.44 | 0.11 | 0.22 | 0.15 | 0.15 | 0.11 |
| Year Lowest Occurred | 1985 | 1972 | 1972 | 1987 | 1974 | 1980 | 1994 | 1975 | 1979 | 1988 | 1986 | 1976 | 1979 |
| Heating Degree Days (F) | 1374. | 1118. | 1033. | 814. | 545. | 268. | 123. | 146. | 344. | 670. | 1058. | 1342. | 8835. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 7. | 21. | 7. | 0. | 0. | 0. | 0. | 35. |