| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.1 | 38.3 | 48.2 | 57.2 | 68.1 | 79.8 | 84.5 | 82.4 | 74.9 | 63.5 | 46.4 | 35.1 | 59.3 |
| Highest Mean Max. Temperature (F) | 41.1 | 48.3 | 57.8 | 66.3 | 75.5 | 84.9 | 88.0 | 85.1 | 81.7 | 69.2 | 56.0 | 47.0 | 88.0 |
| Year Highest Occurred | 1981 | 1995 | 1999 | 1989 | 2000 | 1977 | 1989 | 1980 | 1979 | 1979 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 23.6 | 27.1 | 36.8 | 45.7 | 60.8 | 74.6 | 79.8 | 78.4 | 68.5 | 55.0 | 38.2 | 25.1 | 23.6 |
| Year Lowest Occurred | 1979 | 1984 | 1983 | 1983 | 1982 | 1995 | 1992 | 1999 | 1985 | 1984 | 1992 | 1978 | 1979 |
| Mean Temperature (F) | 17.6 | 23.0 | 33.7 | 41.2 | 50.1 | 58.6 | 64.4 | 63.2 | 55.0 | 44.1 | 31.2 | 19.8 | 41.8 |
| Highest Mean Temperature (F) | 26.3 | 32.9 | 39.7 | 47.8 | 54.2 | 62.2 | 66.8 | 66.3 | 59.6 | 47.3 | 35.9 | 29.8 | 66.8 |
| Year Highest Occurred | 1999 | 1995 | 1999 | 1989 | 1984 | 1988 | 1975 | 1984 | 1998 | 1988 | 1995 | 1980 | 1975 |
| Lowest Mean Temperature (F) | 7.9 | 10.0 | 26.0 | 33.7 | 46.3 | 55.5 | 61.6 | 60.1 | 51.1 | 40.5 | 24.0 | 8.4 | 7.9 |
| Year Lowest Occurred | 1989 | 1974 | 1984 | 1983 | 1982 | 1975 | 1995 | 1975 | 1971 | 1976 | 2000 | 1978 | 1989 |
| Mean Min. Temperature (F) | 2.0 | 7.6 | 19.1 | 25.2 | 32.1 | 37.3 | 44.3 | 43.9 | 35.1 | 24.7 | 15.9 | 4.5 | 24.3 |
| Highest Mean Min. Temperature (F) | 12.1 | 19.8 | 24.8 | 29.7 | 36.6 | 42.3 | 48.9 | 49.5 | 40.5 | 32.5 | 21.0 | 16.5 | 49.5 |
| Year Highest Occurred | 1999 | 1986 | 1983 | 1990 | 1992 | 1988 | 1975 | 1984 | 1997 | 1972 | 1985 | 1977 | 1984 |
| Lowest Mean Min. Temperature (F) | -8.6 | -8.5 | 11.5 | 20.6 | 27.6 | 33.1 | 39.9 | 39.5 | 30.4 | 19.3 | 8.8 | -8.3 | -8.6 |
| Year Lowest Occurred | 1989 | 1974 | 1977 | 1973 | 1977 | 1980 | 1993 | 1980 | 1975 | 1999 | 2000 | 1978 | 1989 |
| Mean Precipitation (in.) | 0.92 | 0.75 | 1.02 | 1.12 | 1.20 | 0.84 | 1.28 | 1.36 | 1.41 | 1.38 | 1.12 | 0.76 | 13.16 |
| Highest Precipitation (in.) | 2.90 | 1.96 | 3.11 | 3.65 | 3.84 | 2.67 | 3.46 | 2.41 | 3.87 | 2.70 | 3.10 | 2.52 | 3.87 |
| Year Highest Occurred | 1974 | 1993 | 1995 | 1990 | 1992 | 1972 | 1981 | 1999 | 1985 | 1998 | 1986 | 1983 | 1985 |
| Lowest Precipitation (in.) | 0.10 | 0.01 | 0.07 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.02 | 0.00 |
| Year Lowest Occurred | 1992 | 1973 | 1999 | 1982 | 1974 | 1971 | 1994 | 1996 | 1979 | 1983 | 1976 | 1994 | 1974 |
| Heating Degree Days (F) | 1471. | 1177. | 972. | 713. | 461. | 199. | 60. | 92. | 302. | 649. | 1016. | 1401. | 8513. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 6. | 41. | 34. | 2. | 0. | 0. | 0. | 83. |