| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.0 | 37.2 | 51.7 | 62.5 | 72.5 | 83.6 | 89.8 | 87.7 | 77.4 | 63.0 | 45.3 | 33.0 | 61.1 |
| Highest Mean Max. Temperature (F) | 43.6 | 48.1 | 62.7 | 70.7 | 80.2 | 89.8 | 93.2 | 92.6 | 84.2 | 71.2 | 55.2 | 46.1 | 93.2 |
| Year Highest Occurred | 1981 | 1995 | 1972 | 1992 | 1974 | 1977 | 2000 | 1971 | 1979 | 1988 | 1999 | 1980 | 2000 |
| Lowest Mean Max. Temperature (F) | 13.9 | 21.7 | 41.6 | 55.5 | 63.1 | 76.9 | 84.9 | 83.5 | 70.5 | 56.5 | 36.3 | 16.1 | 13.9 |
| Year Lowest Occurred | 1984 | 1973 | 1979 | 1997 | 1995 | 1998 | 1986 | 1993 | 1986 | 1984 | 1971 | 1978 | 1984 |
| Mean Temperature (F) | 18.7 | 25.0 | 38.0 | 47.1 | 56.2 | 65.4 | 71.5 | 69.6 | 60.1 | 47.6 | 33.0 | 21.6 | 46.2 |
| Highest Mean Temperature (F) | 29.8 | 34.8 | 43.8 | 53.2 | 60.3 | 69.8 | 74.0 | 73.2 | 64.9 | 52.8 | 38.1 | 33.2 | 74.0 |
| Year Highest Occurred | 1981 | 1995 | 1986 | 1992 | 2000 | 1977 | 1978 | 1983 | 1979 | 1988 | 1995 | 1980 | 1978 |
| Lowest Mean Temperature (F) | 2.8 | 11.6 | 31.7 | 42.0 | 50.8 | 60.1 | 66.4 | 66.0 | 55.2 | 44.4 | 27.0 | 7.0 | 2.8 |
| Year Lowest Occurred | 1973 | 1984 | 1984 | 1975 | 1995 | 1975 | 1993 | 1987 | 1971 | 1982 | 1971 | 1978 | 1973 |
| Mean Min. Temperature (F) | 7.3 | 12.7 | 24.3 | 31.6 | 39.8 | 47.2 | 53.2 | 51.5 | 42.8 | 32.1 | 20.6 | 10.2 | 31.1 |
| Highest Mean Min. Temperature (F) | 17.1 | 23.3 | 29.3 | 37.5 | 43.2 | 50.9 | 57.4 | 57.2 | 48.3 | 36.0 | 25.5 | 20.3 | 57.4 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1988 | 1992 | 1985 | 1985 | 1982 | 1982 | 1972 | 1981 | 1980 | 1985 |
| Lowest Mean Min. Temperature (F) | -8.4 | 0.3 | 18.6 | 26.9 | 35.6 | 43.1 | 46.3 | 47.1 | 36.7 | 26.6 | 15.6 | -2.1 | -8.4 |
| Year Lowest Occurred | 1973 | 1985 | 1971 | 1971 | 1975 | 1975 | 1993 | 1975 | 1971 | 1976 | 2000 | 1978 | 1973 |
| Mean Precipitation (in.) | 0.45 | 0.50 | 0.68 | 0.86 | 1.05 | 0.66 | 0.64 | 0.74 | 0.91 | 1.25 | 0.57 | 0.46 | 8.77 |
| Highest Precipitation (in.) | 1.57 | 1.16 | 2.07 | 2.21 | 2.81 | 2.14 | 2.01 | 2.41 | 2.86 | 4.36 | 1.52 | 1.42 | 4.36 |
| Year Highest Occurred | 1978 | 1998 | 1979 | 1986 | 1995 | 1990 | 1987 | 1997 | 1997 | 1981 | 1983 | 1971 | 1981 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1999 | 1989 | 1974 | 1980 | 1978 | 1974 | 1979 | 1988 | 1979 | 1993 | 1972 |
| Heating Degree Days (F) | 1438. | 1121. | 837. | 539. | 283. | 79. | 9. | 16. | 177. | 542. | 962. | 1344. | 7347. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 8. | 91. | 211. | 159. | 30. | 0. | 0. | 0. | 499. |