| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 35.2 | 41.9 | 51.1 | 59.6 | 68.1 | 77.4 | 80.5 | 78.6 | 73.3 | 63.3 | 47.5 | 37.1 | 59.5 |
| Highest Mean Max. Temperature (F) | 47.5 | 52.7 | 59.4 | 65.9 | 75.6 | 81.6 | 83.6 | 81.4 | 77.5 | 68.3 | 57.1 | 49.1 | 83.6 |
| Year Highest Occurred | 1986 | 1995 | 1989 | 1989 | 1996 | 1990 | 1980 | 2000 | 1998 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 21.6 | 31.9 | 44.4 | 52.1 | 63.8 | 72.3 | 77.4 | 76.2 | 69.1 | 53.9 | 35.5 | 21.6 | 21.6 |
| Year Lowest Occurred | 1992 | 1992 | 1992 | 1983 | 1983 | 1983 | 1992 | 1993 | 1986 | 1984 | 1972 | 1991 | 1991 |
| Mean Temperature (F) | 18.6 | 25.5 | 35.0 | 42.2 | 50.9 | 59.5 | 63.6 | 62.0 | 55.6 | 45.1 | 31.1 | 20.6 | 42.5 |
| Highest Mean Temperature (F) | 28.8 | 35.2 | 41.3 | 47.6 | 58.0 | 63.2 | 66.1 | 64.9 | 59.5 | 49.2 | 36.2 | 30.7 | 66.1 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 2000 | 1996 | 1990 | 1998 | 2000 | 1998 | 1972 | 1998 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 5.4 | 15.5 | 29.5 | 36.1 | 46.8 | 55.4 | 61.3 | 58.7 | 52.8 | 40.7 | 21.6 | 8.7 | 5.4 |
| Year Lowest Occurred | 1992 | 1979 | 1984 | 1983 | 1983 | 1983 | 1986 | 1974 | 1987 | 1984 | 1972 | 1991 | 1992 |
| Mean Min. Temperature (F) | 2.0 | 9.1 | 18.8 | 24.8 | 33.7 | 41.5 | 46.7 | 45.3 | 37.8 | 26.8 | 14.7 | 4.1 | 25.4 |
| Highest Mean Min. Temperature (F) | 12.3 | 17.7 | 23.5 | 29.5 | 40.4 | 45.3 | 51.3 | 48.7 | 43.4 | 35.9 | 21.3 | 12.2 | 51.3 |
| Year Highest Occurred | 1999 | 1995 | 1974 | 2000 | 1996 | 1994 | 1999 | 1995 | 1997 | 1972 | 1998 | 1980 | 1999 |
| Lowest Mean Min. Temperature (F) | -10.9 | -2.5 | 12.9 | 20.1 | 29.3 | 37.8 | 43.3 | 40.1 | 32.6 | 21.4 | 7.7 | -5.3 | -10.9 |
| Year Lowest Occurred | 1984 | 1979 | 1977 | 1983 | 1971 | 1982 | 1987 | 1978 | 1987 | 1976 | 1972 | 1976 | 1984 |
| Mean Precipitation (in.) | 0.26 | 0.26 | 0.44 | 0.48 | 0.79 | 0.48 | 1.15 | 1.52 | 1.03 | 0.70 | 0.56 | 0.34 | 8.01 |
| Highest Precipitation (in.) | 0.89 | 0.70 | 2.13 | 1.89 | 2.18 | 1.40 | 3.93 | 3.62 | 2.68 | 2.37 | 1.55 | 1.04 | 3.93 |
| Year Highest Occurred | 1987 | 1987 | 1992 | 1999 | 1978 | 1981 | 1977 | 1999 | 1985 | 1998 | 1978 | 1991 | 1977 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.42 | 0.10 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1981 | 2000 | 1997 | 1992 | 1998 | 1980 | 1993 | 1978 | 1974 | 1995 | 1989 | 1998 | 1981 |
| Heating Degree Days (F) | 1438. | 1107. | 932. | 685. | 439. | 177. | 67. | 110. | 285. | 619. | 1018. | 1376. | 8253. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 11. | 24. | 15. | 2. | 0. | 0. | 0. | 53. |