| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.6 | 47.9 | 54.3 | 63.0 | 72.3 | 82.7 | 84.8 | 82.0 | 76.6 | 66.3 | 52.8 | 45.1 | 64.3 |
| Highest Mean Max. Temperature (F) | 54.8 | 54.0 | 64.2 | 70.8 | 79.7 | 87.8 | 89.5 | 85.4 | 81.7 | 72.0 | 62.0 | 55.1 | 89.5 |
| Year Highest Occurred | 1986 | 1999 | 1972 | 1989 | 2000 | 1974 | 1980 | 1977 | 1979 | 1979 | 1999 | 1980 | 1980 |
| Lowest Mean Max. Temperature (F) | 36.7 | 39.6 | 45.1 | 55.1 | 67.5 | 78.6 | 80.2 | 77.8 | 71.8 | 55.5 | 43.7 | 38.9 | 36.7 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1973 | 1992 | 1991 | 1999 | 1988 | 1996 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 28.8 | 33.7 | 39.2 | 45.7 | 53.7 | 62.8 | 68.0 | 66.2 | 59.7 | 49.0 | 37.2 | 30.3 | 47.9 |
| Highest Mean Temperature (F) | 36.8 | 39.3 | 44.7 | 50.2 | 57.8 | 67.6 | 70.7 | 69.5 | 63.6 | 51.9 | 41.3 | 37.7 | 70.7 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1974 | 1980 | 1995 | 1998 | 1978 | 1999 | 1980 | 1980 |
| Lowest Mean Temperature (F) | 23.4 | 26.8 | 34.2 | 40.9 | 50.7 | 59.6 | 64.8 | 63.6 | 55.9 | 43.4 | 30.5 | 24.0 | 23.4 |
| Year Lowest Occurred | 1977 | 1985 | 1987 | 1973 | 1995 | 1991 | 1992 | 1990 | 1996 | 1984 | 1992 | 1990 | 1977 |
| Mean Min. Temperature (F) | 14.0 | 19.5 | 24.1 | 28.3 | 35.0 | 42.9 | 51.1 | 50.4 | 42.8 | 31.6 | 21.5 | 15.4 | 31.4 |
| Highest Mean Min. Temperature (F) | 23.1 | 24.9 | 28.4 | 33.0 | 40.5 | 47.4 | 54.0 | 54.3 | 49.4 | 38.7 | 26.2 | 23.0 | 54.3 |
| Year Highest Occurred | 1980 | 1995 | 1983 | 1990 | 1992 | 1974 | 1998 | 1995 | 1997 | 1972 | 1978 | 1983 | 1995 |
| Lowest Mean Min. Temperature (F) | 6.9 | 9.9 | 19.3 | 24.9 | 31.7 | 38.9 | 46.4 | 45.4 | 39.1 | 27.2 | 15.2 | 8.2 | 6.9 |
| Year Lowest Occurred | 1977 | 1985 | 1987 | 1991 | 1971 | 1998 | 1987 | 1978 | 1973 | 1980 | 1992 | 1990 | 1977 |
| Mean Precipitation (in.) | 1.24 | 0.96 | 1.30 | 0.80 | 0.78 | 0.61 | 1.90 | 2.79 | 1.56 | 1.35 | 1.00 | 1.01 | 15.30 |
| Highest Precipitation (in.) | 4.37 | 2.23 | 3.14 | 2.20 | 3.82 | 2.65 | 4.41 | 7.68 | 3.85 | 4.75 | 2.43 | 2.73 | 7.68 |
| Year Highest Occurred | 1979 | 1980 | 1981 | 1988 | 1992 | 1988 | 1998 | 1993 | 1983 | 1972 | 1986 | 1990 | 1993 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.08 | 0.89 | 0.10 | 0.00 | 0.02 | 0.05 | 0.00 |
| Year Lowest Occurred | 1986 | 1999 | 1974 | 1992 | 2000 | 1998 | 1993 | 1978 | 1979 | 1999 | 1989 | 1981 | 1986 |
| Heating Degree Days (F) | 1122. | 877. | 800. | 580. | 352. | 110. | 15. | 32. | 173. | 498. | 836. | 1078. | 6473. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 44. | 106. | 68. | 15. | 0. | 0. | 0. | 234. |