| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 41.5 | 44.0 | 48.6 | 56.4 | 65.0 | 74.7 | 75.5 | 72.4 | 68.2 | 59.5 | 49.1 | 42.7 | 58.1 |
| Highest Mean Max. Temperature (F) | 48.4 | 50.3 | 58.2 | 63.3 | 71.8 | 81.5 | 80.1 | 74.5 | 72.2 | 65.8 | 58.4 | 50.4 | 81.5 |
| Year Highest Occurred | 1986 | 2000 | 1972 | 1989 | 2000 | 1974 | 1971 | 1977 | 1997 | 1979 | 1999 | 1980 | 1974 |
| Lowest Mean Max. Temperature (F) | 35.4 | 37.7 | 42.3 | 49.4 | 59.0 | 70.1 | 70.8 | 69.0 | 62.8 | 51.4 | 39.6 | 35.7 | 35.4 |
| Year Lowest Occurred | 1979 | 1998 | 1973 | 1973 | 1995 | 1992 | 1999 | 1987 | 1985 | 1984 | 2000 | 1997 | 1979 |
| Mean Temperature (F) | 28.6 | 31.0 | 35.2 | 41.7 | 49.3 | 58.1 | 61.5 | 59.5 | 54.8 | 45.7 | 35.9 | 29.8 | 44.3 |
| Highest Mean Temperature (F) | 34.7 | 36.7 | 41.8 | 47.3 | 55.0 | 62.6 | 64.0 | 62.4 | 59.1 | 49.4 | 42.2 | 36.0 | 64.0 |
| Year Highest Occurred | 1986 | 1996 | 1972 | 1989 | 2000 | 1974 | 1971 | 1995 | 1997 | 1979 | 1999 | 1977 | 1971 |
| Lowest Mean Temperature (F) | 23.3 | 26.8 | 29.6 | 35.0 | 46.2 | 54.9 | 58.9 | 57.4 | 50.7 | 40.0 | 29.5 | 24.4 | 23.3 |
| Year Lowest Occurred | 1979 | 1979 | 1973 | 1983 | 1995 | 1983 | 1986 | 1987 | 1985 | 1984 | 2000 | 1997 | 1979 |
| Mean Min. Temperature (F) | 15.7 | 17.9 | 21.7 | 26.9 | 33.6 | 41.5 | 47.5 | 46.6 | 41.3 | 31.8 | 22.6 | 16.9 | 30.3 |
| Highest Mean Min. Temperature (F) | 21.6 | 25.3 | 26.7 | 31.6 | 38.1 | 46.0 | 50.5 | 50.7 | 46.0 | 36.2 | 28.1 | 22.9 | 50.7 |
| Year Highest Occurred | 1981 | 1995 | 1989 | 2000 | 2000 | 2000 | 1996 | 1995 | 1997 | 1988 | 1995 | 1977 | 1995 |
| Lowest Mean Min. Temperature (F) | 11.1 | 11.5 | 16.9 | 20.2 | 29.5 | 37.3 | 44.8 | 43.2 | 38.0 | 26.7 | 16.3 | 12.8 | 11.1 |
| Year Lowest Occurred | 1979 | 1974 | 1973 | 1983 | 1971 | 1983 | 1987 | 1979 | 1973 | 1982 | 1972 | 1974 | 1979 |
| Mean Precipitation (in.) | 1.49 | 1.37 | 1.58 | 0.90 | 0.91 | 0.94 | 3.77 | 4.46 | 2.48 | 2.14 | 1.62 | 1.53 | 23.19 |
| Highest Precipitation (in.) | 4.84 | 3.87 | 3.64 | 3.33 | 5.55 | 3.68 | 7.21 | 10.76 | 6.26 | 7.20 | 5.51 | 5.89 | 10.76 |
| Year Highest Occurred | 1974 | 1980 | 1981 | 1988 | 1992 | 1972 | 1999 | 1987 | 1983 | 1972 | 1978 | 1984 | 1987 |
| Lowest Precipitation (in.) | 0.07 | 0.07 | 0.00 | 0.07 | 0.00 | 0.00 | 0.92 | 1.30 | 0.00 | 0.00 | 0.02 | 0.01 | 0.00 |
| Year Lowest Occurred | 1972 | 1984 | 1972 | 1982 | 2000 | 1989 | 1995 | 1997 | 2000 | 1999 | 1999 | 1996 | 1972 |
| Heating Degree Days (F) | 1129. | 954. | 925. | 701. | 487. | 216. | 115. | 171. | 309. | 600. | 875. | 1091. | 7573. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 8. | 7. | 1. | 0. | 0. | 0. | 0. | 16. |