| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.9 | 51.7 | 60.5 | 70.3 | 79.8 | 90.2 | 96.0 | 94.1 | 85.2 | 73.7 | 57.7 | 46.8 | 70.9 |
| Highest Mean Max. Temperature (F) | 56.8 | 66.5 | 70.1 | 80.1 | 87.0 | 96.7 | 103.6 | 102.6 | 93.1 | 82.6 | 68.5 | 54.6 | 103.6 |
| Year Highest Occurred | 1986 | 1976 | 1972 | 1981 | 1998 | 1998 | 1980 | 2000 | 2000 | 1979 | 1999 | 1988 | 1980 |
| Lowest Mean Max. Temperature (F) | 28.6 | 34.2 | 52.7 | 64.0 | 72.3 | 84.1 | 91.7 | 87.1 | 76.3 | 68.5 | 49.6 | 31.3 | 28.6 |
| Year Lowest Occurred | 1979 | 1978 | 1998 | 1984 | 1995 | 1992 | 1972 | 1992 | 1974 | 1976 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 32.3 | 37.9 | 46.5 | 56.4 | 67.3 | 77.5 | 83.0 | 81.0 | 72.3 | 59.8 | 45.1 | 35.0 | 57.8 |
| Highest Mean Temperature (F) | 40.2 | 47.7 | 52.2 | 63.9 | 74.4 | 82.9 | 88.6 | 87.8 | 79.0 | 65.1 | 51.6 | 39.8 | 88.6 |
| Year Highest Occurred | 1990 | 1976 | 1972 | 1981 | 1998 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1988 | 1980 |
| Lowest Mean Temperature (F) | 19.0 | 24.8 | 39.0 | 50.4 | 61.6 | 72.5 | 79.6 | 75.1 | 63.6 | 54.5 | 40.1 | 20.7 | 19.0 |
| Year Lowest Occurred | 1979 | 1978 | 1984 | 1984 | 1995 | 1992 | 1989 | 1992 | 1974 | 1976 | 1991 | 1983 | 1979 |
| Mean Min. Temperature (F) | 19.6 | 24.1 | 32.5 | 42.5 | 54.7 | 64.7 | 70.0 | 67.9 | 59.3 | 45.9 | 32.5 | 23.2 | 44.7 |
| Highest Mean Min. Temperature (F) | 27.2 | 31.9 | 38.3 | 47.7 | 61.8 | 69.5 | 73.6 | 73.2 | 65.2 | 50.5 | 39.0 | 29.7 | 73.6 |
| Year Highest Occurred | 1992 | 1999 | 1973 | 1981 | 1998 | 1990 | 1980 | 1983 | 1998 | 2000 | 1998 | 1991 | 1980 |
| Lowest Mean Min. Temperature (F) | 9.4 | 15.4 | 23.2 | 36.8 | 49.4 | 59.5 | 66.3 | 63.0 | 50.8 | 40.6 | 26.4 | 10.1 | 9.4 |
| Year Lowest Occurred | 1979 | 1978 | 1984 | 1984 | 1976 | 1974 | 1984 | 1992 | 1974 | 1976 | 1993 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.97 | 1.17 | 2.96 | 2.67 | 4.51 | 3.99 | 3.16 | 3.39 | 3.00 | 2.40 | 1.83 | 1.22 | 31.27 |
| Highest Precipitation (in.) | 2.69 | 3.64 | 10.18 | 11.29 | 14.42 | 12.45 | 7.67 | 12.18 | 10.63 | 7.88 | 5.57 | 4.26 | 14.42 |
| Year Highest Occurred | 1999 | 1985 | 1984 | 1999 | 1993 | 1989 | 1998 | 1989 | 1997 | 2000 | 1992 | 1984 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | 0.26 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1996 | 1996 | 1997 | 1996 | 1971 | 1998 | 1983 | 1988 | 2000 | 1993 | 1989 | 1996 | 1996 |
| Heating Degree Days (F) | 1015. | 759. | 574. | 277. | 74. | 5. | 0. | 1. | 27. | 189. | 597. | 929. | 4447. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 20. | 144. | 379. | 557. | 498. | 244. | 28. | 0. | 0. | 1870. |