| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 46.8 | 51.4 | 58.9 | 67.1 | 76.6 | 87.9 | 93.8 | 90.8 | 82.9 | 71.4 | 56.6 | 48.7 | 69.4 |
| Highest Mean Max. Temperature (F) | 56.7 | 59.0 | 66.2 | 74.4 | 83.2 | 92.5 | 97.8 | 95.4 | 88.2 | 78.5 | 66.1 | 59.9 | 97.8 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1981 | 1974 | 1994 | 1980 | 1995 | 1977 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 33.3 | 37.0 | 53.2 | 59.5 | 69.8 | 81.8 | 88.8 | 87.6 | 78.3 | 62.4 | 47.4 | 34.1 | 33.3 |
| Year Lowest Occurred | 1979 | 1989 | 1973 | 1973 | 1995 | 1982 | 1990 | 1987 | 1999 | 1984 | 1972 | 1983 | 1979 |
| Mean Temperature (F) | 30.8 | 34.9 | 42.9 | 50.8 | 60.7 | 71.2 | 77.0 | 74.7 | 66.0 | 53.8 | 40.4 | 33.1 | 53.0 |
| Highest Mean Temperature (F) | 40.0 | 42.3 | 49.1 | 56.5 | 65.4 | 74.7 | 80.4 | 78.6 | 69.4 | 56.6 | 47.7 | 42.1 | 80.4 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1981 | 1996 | 1977 | 1980 | 1983 | 1983 | 1975 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 17.1 | 23.5 | 38.0 | 44.8 | 55.2 | 66.6 | 73.9 | 72.5 | 62.6 | 49.3 | 33.7 | 21.7 | 17.1 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1995 | 1995 | 1982 | 1990 | 1979 | 1993 | 1984 | 1972 | 1983 | 1979 |
| Mean Min. Temperature (F) | 14.7 | 18.4 | 26.8 | 34.5 | 44.7 | 54.4 | 60.1 | 58.5 | 49.1 | 36.1 | 24.2 | 17.5 | 36.6 |
| Highest Mean Min. Temperature (F) | 23.3 | 25.5 | 32.2 | 39.2 | 48.4 | 58.8 | 63.0 | 62.5 | 53.2 | 40.2 | 29.3 | 24.4 | 63.0 |
| Year Highest Occurred | 1986 | 1999 | 1986 | 1985 | 1985 | 1988 | 1980 | 1983 | 1990 | 1972 | 1999 | 1980 | 1980 |
| Lowest Mean Min. Temperature (F) | 0.8 | 10.0 | 20.1 | 28.9 | 40.5 | 49.8 | 55.4 | 55.2 | 45.2 | 31.2 | 19.3 | 9.3 | 0.8 |
| Year Lowest Occurred | 1979 | 1989 | 1996 | 1995 | 1995 | 1998 | 1994 | 1979 | 1993 | 1995 | 1997 | 1983 | 1979 |
| Mean Precipitation (in.) | 0.25 | 0.23 | 0.94 | 1.42 | 1.84 | 1.33 | 2.01 | 2.07 | 0.85 | 0.62 | 0.65 | 0.39 | 12.60 |
| Highest Precipitation (in.) | 0.86 | 1.24 | 2.71 | 6.48 | 5.05 | 3.48 | 7.60 | 6.27 | 3.35 | 2.87 | 2.55 | 1.68 | 7.60 |
| Year Highest Occurred | 1987 | 1987 | 2000 | 1999 | 1980 | 1994 | 1996 | 1997 | 1976 | 1984 | 1997 | 1978 | 1996 |
| Lowest Precipitation (in.) | 0.01 | 0.00 | 0.06 | 0.06 | 0.24 | 0.22 | 0.25 | 0.22 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1992 | 1999 | 1989 | 1981 | 1984 | 1990 | 1987 | 1988 | 1992 | 1995 | 1989 | 1980 | 1999 |
| Heating Degree Days (F) | 1062. | 843. | 688. | 430. | 171. | 17. | 0. | 1. | 56. | 350. | 739. | 989. | 5346. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 4. | 37. | 201. | 369. | 300. | 85. | 1. | 0. | 0. | 997. |