| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 34.3 | 38.7 | 46.2 | 54.6 | 64.8 | 76.1 | 80.2 | 77.7 | 70.8 | 59.9 | 45.0 | 35.8 | 57.0 |
| Highest Mean Max. Temperature (F) | 44.2 | 48.4 | 53.8 | 60.8 | 73.0 | 80.9 | 84.7 | 81.5 | 75.8 | 65.9 | 54.9 | 48.2 | 84.7 |
| Year Highest Occurred | 1981 | 1995 | 1989 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 26.8 | 31.6 | 39.4 | 47.4 | 59.6 | 70.3 | 77.0 | 74.0 | 67.1 | 50.5 | 36.7 | 28.6 | 26.8 |
| Year Lowest Occurred | 1988 | 1979 | 1973 | 1983 | 1983 | 1983 | 1995 | 1993 | 1986 | 1984 | 1972 | 1992 | 1988 |
| Mean Temperature (F) | 21.2 | 25.7 | 33.8 | 41.1 | 50.7 | 60.9 | 65.5 | 63.5 | 56.6 | 46.1 | 32.4 | 23.0 | 43.4 |
| Highest Mean Temperature (F) | 29.2 | 36.0 | 40.2 | 46.4 | 57.3 | 65.0 | 68.9 | 66.6 | 61.3 | 50.7 | 39.7 | 32.8 | 68.9 |
| Year Highest Occurred | 1986 | 1995 | 1999 | 1992 | 1996 | 1994 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 13.0 | 17.6 | 28.6 | 34.6 | 46.5 | 56.2 | 62.5 | 60.5 | 53.8 | 40.1 | 24.8 | 16.1 | 13.0 |
| Year Lowest Occurred | 1984 | 1979 | 1973 | 1973 | 1995 | 1983 | 1995 | 1974 | 1973 | 1984 | 1972 | 1978 | 1984 |
| Mean Min. Temperature (F) | 8.0 | 12.7 | 21.3 | 27.6 | 36.6 | 45.6 | 50.8 | 49.3 | 42.3 | 32.2 | 19.8 | 10.2 | 29.7 |
| Highest Mean Min. Temperature (F) | 17.0 | 23.6 | 26.9 | 32.7 | 41.6 | 49.1 | 53.5 | 51.9 | 46.8 | 36.9 | 24.7 | 17.3 | 53.5 |
| Year Highest Occurred | 1999 | 1995 | 1999 | 1992 | 1996 | 1994 | 1989 | 1983 | 1998 | 1972 | 1998 | 1980 | 1989 |
| Lowest Mean Min. Temperature (F) | -1.0 | 3.5 | 15.2 | 20.9 | 33.0 | 42.2 | 47.8 | 46.1 | 38.6 | 28.9 | 12.1 | 3.5 | -1.0 |
| Year Lowest Occurred | 1984 | 1979 | 1976 | 1973 | 1995 | 1983 | 1992 | 1974 | 1973 | 1980 | 1979 | 1978 | 1984 |
| Mean Precipitation (in.) | 0.46 | 0.39 | 0.88 | 0.90 | 1.13 | 0.88 | 1.69 | 1.95 | 1.23 | 0.95 | 0.62 | 0.43 | 11.51 |
| Highest Precipitation (in.) | 1.55 | 1.41 | 2.41 | 2.16 | 2.97 | 2.41 | 3.91 | 5.14 | 3.50 | 2.57 | 2.19 | 1.13 | 5.14 |
| Year Highest Occurred | 1979 | 1989 | 1992 | 1998 | 1993 | 1995 | 1998 | 1993 | 1985 | 1998 | 1997 | 1991 | 1993 |
| Lowest Precipitation (in.) | 0.01 | 0.03 | 0.12 | 0.00 | 0.02 | 0.05 | 0.22 | 0.25 | 0.04 | 0.09 | 0.00 | 0.01 | 0.00 |
| Year Lowest Occurred | 1981 | 1995 | 1971 | 1974 | 1975 | 1980 | 1994 | 1985 | 1978 | 1995 | 1989 | 1980 | 1974 |
| Heating Degree Days (F) | 1359. | 1101. | 970. | 717. | 445. | 146. | 42. | 73. | 256. | 587. | 978. | 1303. | 7977. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 21. | 59. | 27. | 3. | 0. | 0. | 0. | 111. |