| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 26.7 | 32.0 | 40.6 | 49.4 | 60.8 | 71.8 | 76.9 | 75.3 | 67.0 | 55.3 | 38.6 | 28.4 | 51.9 |
| Highest Mean Max. Temperature (F) | 34.9 | 38.3 | 50.3 | 59.3 | 71.7 | 78.1 | 80.4 | 80.1 | 73.7 | 61.6 | 51.1 | 40.0 | 80.4 |
| Year Highest Occurred | 1998 | 2000 | 1999 | 1992 | 2000 | 1994 | 1994 | 1996 | 1979 | 1992 | 1999 | 1980 | 1994 |
| Lowest Mean Max. Temperature (F) | 13.7 | 23.1 | 33.1 | 41.1 | 53.4 | 65.8 | 71.0 | 70.0 | 60.7 | 43.3 | 29.6 | 20.3 | 13.7 |
| Year Lowest Occurred | 1984 | 1984 | 1988 | 1984 | 1983 | 1993 | 1990 | 1993 | 1986 | 1984 | 2000 | 1988 | 1984 |
| Mean Temperature (F) | 14.6 | 18.3 | 27.8 | 36.7 | 46.8 | 55.5 | 60.7 | 59.2 | 51.3 | 40.8 | 27.0 | 17.3 | 38.0 |
| Highest Mean Temperature (F) | 22.4 | 25.2 | 34.5 | 45.6 | 53.4 | 60.0 | 63.5 | 62.5 | 55.6 | 46.2 | 35.0 | 27.7 | 63.5 |
| Year Highest Occurred | 1971 | 1995 | 1972 | 1992 | 2000 | 1977 | 1998 | 1994 | 1998 | 1992 | 1995 | 1980 | 1998 |
| Lowest Mean Temperature (F) | 2.2 | 8.7 | 19.7 | 29.7 | 41.9 | 51.8 | 56.5 | 54.2 | 46.4 | 33.3 | 19.1 | 10.0 | 2.2 |
| Year Lowest Occurred | 1984 | 1984 | 1988 | 1984 | 1995 | 1993 | 1990 | 1993 | 1993 | 1984 | 2000 | 1988 | 1984 |
| Mean Min. Temperature (F) | 2.5 | 4.6 | 14.9 | 24.0 | 32.7 | 39.2 | 44.5 | 43.1 | 35.6 | 26.3 | 15.4 | 6.1 | 24.1 |
| Highest Mean Min. Temperature (F) | 12.7 | 14.3 | 22.1 | 31.9 | 38.3 | 43.8 | 46.9 | 47.8 | 39.9 | 31.5 | 23.7 | 15.7 | 47.8 |
| Year Highest Occurred | 1971 | 1986 | 1972 | 1992 | 1981 | 1981 | 1998 | 1983 | 1981 | 1981 | 1995 | 1981 | 1983 |
| Lowest Mean Min. Temperature (F) | -9.3 | -6.1 | 6.2 | 17.2 | 29.1 | 35.7 | 41.5 | 38.4 | 30.0 | 21.9 | 8.5 | -0.3 | -9.3 |
| Year Lowest Occurred | 1984 | 1973 | 1988 | 1980 | 1990 | 1975 | 1989 | 1993 | 1993 | 1976 | 1993 | 1988 | 1984 |
| Mean Precipitation (in.) | 0.92 | 0.96 | 1.35 | 1.39 | 1.67 | 1.13 | 1.60 | 1.41 | 1.31 | 1.10 | 1.11 | 0.98 | 14.93 |
| Highest Precipitation (in.) | 2.84 | 2.69 | 3.00 | 2.92 | 3.82 | 2.84 | 3.98 | 3.96 | 2.68 | 2.60 | 2.77 | 2.57 | 3.98 |
| Year Highest Occurred | 1980 | 1996 | 1995 | 1997 | 1995 | 1983 | 1984 | 2000 | 1996 | 1984 | 1983 | 1983 | 1984 |
| Lowest Precipitation (in.) | 0.00 | 0.07 | 0.50 | 0.62 | 0.09 | 0.01 | 0.40 | 0.06 | 0.07 | 0.27 | 0.38 | 0.12 | 0.00 |
| Year Lowest Occurred | 1990 | 1991 | 1986 | 1987 | 1998 | 1980 | 2000 | 1996 | 1979 | 1992 | 1991 | 1976 | 1990 |
| Heating Degree Days (F) | 1563. | 1307. | 1156. | 848. | 565. | 289. | 146. | 191. | 411. | 751. | 1140. | 1480. | 9847. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 5. | 12. | 11. | 0. | 0. | 0. | 0. | 28. |