| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 27.3 | 31.6 | 40.9 | 51.0 | 61.7 | 73.6 | 81.5 | 79.9 | 68.6 | 55.6 | 38.3 | 29.0 | 53.3 |
| Highest Mean Max. Temperature (F) | 36.1 | 40.4 | 47.6 | 60.3 | 69.5 | 82.7 | 85.9 | 86.0 | 74.1 | 63.8 | 51.2 | 39.6 | 86.0 |
| Year Highest Occurred | 1981 | 1977 | 1986 | 1992 | 1994 | 1977 | 1988 | 1971 | 1979 | 1988 | 1999 | 1980 | 1971 |
| Lowest Mean Max. Temperature (F) | 12.7 | 18.8 | 32.9 | 43.4 | 52.8 | 64.7 | 75.0 | 75.6 | 62.4 | 47.2 | 30.2 | 19.3 | 12.7 |
| Year Lowest Occurred | 1979 | 1989 | 1980 | 1973 | 1995 | 1998 | 1993 | 1993 | 1985 | 1984 | 2000 | 1978 | 1979 |
| Mean Temperature (F) | 19.0 | 22.7 | 31.6 | 39.7 | 49.3 | 59.6 | 66.8 | 65.2 | 54.9 | 43.5 | 28.8 | 20.2 | 41.8 |
| Highest Mean Temperature (F) | 26.2 | 30.1 | 37.6 | 47.2 | 55.3 | 66.3 | 70.6 | 69.4 | 60.5 | 50.3 | 38.3 | 30.1 | 70.6 |
| Year Highest Occurred | 1999 | 1995 | 1986 | 1992 | 1994 | 1977 | 1988 | 2000 | 1990 | 1988 | 1999 | 1980 | 1988 |
| Lowest Mean Temperature (F) | 4.0 | 10.2 | 25.7 | 33.3 | 43.4 | 53.1 | 60.9 | 62.1 | 49.8 | 37.2 | 21.4 | 11.0 | 4.0 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1975 | 1995 | 1998 | 1993 | 1993 | 1985 | 1984 | 2000 | 1978 | 1979 |
| Mean Min. Temperature (F) | 10.7 | 13.8 | 22.2 | 28.4 | 36.8 | 45.6 | 52.1 | 50.5 | 41.2 | 31.4 | 19.3 | 11.4 | 30.3 |
| Highest Mean Min. Temperature (F) | 18.2 | 21.3 | 27.6 | 34.2 | 41.5 | 50.8 | 56.6 | 55.6 | 48.1 | 36.9 | 26.8 | 20.6 | 56.6 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1992 | 1992 | 1988 | 1985 | 2000 | 1998 | 1988 | 1995 | 1980 | 1985 |
| Lowest Mean Min. Temperature (F) | -4.6 | 1.6 | 15.9 | 22.7 | 32.7 | 41.0 | 46.7 | 45.7 | 34.9 | 27.2 | 12.1 | 2.7 | -4.6 |
| Year Lowest Occurred | 1979 | 1989 | 1977 | 1982 | 1975 | 1975 | 1993 | 1975 | 1971 | 1984 | 1979 | 1978 | 1979 |
| Mean Precipitation (in.) | 0.61 | 0.52 | 0.78 | 1.02 | 1.36 | 0.68 | 0.93 | 0.58 | 0.87 | 0.87 | 0.63 | 0.61 | 9.46 |
| Highest Precipitation (in.) | 1.54 | 1.23 | 1.97 | 2.74 | 3.67 | 1.76 | 3.67 | 1.66 | 3.58 | 2.34 | 1.60 | 1.78 | 3.67 |
| Year Highest Occurred | 1978 | 1978 | 1977 | 1999 | 1995 | 1993 | 1973 | 1997 | 1973 | 1994 | 1983 | 1975 | 1995 |
| Lowest Precipitation (in.) | 0.04 | 0.02 | 0.22 | 0.04 | 0.00 | 0.03 | 0.04 | 0.04 | 0.02 | 0.00 | 0.00 | 0.12 | 0.00 |
| Year Lowest Occurred | 1986 | 1977 | 1976 | 1987 | 1974 | 1977 | 2000 | 1985 | 1974 | 1988 | 1976 | 1974 | 1974 |
| Heating Degree Days (F) | 1425. | 1184. | 1038. | 759. | 490. | 202. | 49. | 71. | 310. | 668. | 1086. | 1388. | 8670. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 41. | 105. | 76. | 7. | 0. | 0. | 0. | 230. |