| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 33.1 | 38.1 | 47.9 | 57.3 | 66.3 | 77.0 | 83.7 | 82.0 | 72.3 | 59.5 | 42.8 | 33.2 | 57.8 |
| Highest Mean Max. Temperature (F) | 39.7 | 45.5 | 55.3 | 65.3 | 73.4 | 82.7 | 88.6 | 86.4 | 78.6 | 67.7 | 52.6 | 40.5 | 88.6 |
| Year Highest Occurred | 1994 | 1995 | 1972 | 1992 | 2000 | 1994 | 1989 | 2000 | 1979 | 1988 | 1999 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 24.8 | 30.4 | 42.8 | 49.5 | 58.7 | 70.6 | 79.0 | 78.2 | 66.5 | 52.9 | 36.2 | 26.0 | 24.8 |
| Year Lowest Occurred | 1984 | 1989 | 1973 | 1975 | 1995 | 1975 | 1987 | 1993 | 1985 | 1984 | 2000 | 1978 | 1984 |
| Mean Temperature (F) | 20.9 | 25.8 | 35.8 | 44.1 | 52.5 | 62.0 | 68.8 | 67.3 | 58.2 | 46.7 | 31.6 | 22.1 | 44.7 |
| Highest Mean Temperature (F) | 28.0 | 33.7 | 42.9 | 50.8 | 57.5 | 66.7 | 73.0 | 71.7 | 63.0 | 53.7 | 38.3 | 28.8 | 73.0 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 2000 | 1988 | 1989 | 2000 | 1990 | 1988 | 1999 | 1995 | 1989 |
| Lowest Mean Temperature (F) | 11.0 | 16.9 | 30.2 | 37.5 | 47.0 | 56.7 | 64.4 | 63.9 | 53.2 | 42.0 | 25.0 | 15.2 | 11.0 |
| Year Lowest Occurred | 1984 | 1985 | 1976 | 1975 | 1975 | 1975 | 1993 | 1975 | 1985 | 1984 | 2000 | 1978 | 1984 |
| Mean Min. Temperature (F) | 8.6 | 13.5 | 23.6 | 30.8 | 38.6 | 46.9 | 53.9 | 52.6 | 44.1 | 33.8 | 20.3 | 11.0 | 31.5 |
| Highest Mean Min. Temperature (F) | 17.5 | 21.8 | 30.9 | 36.2 | 43.7 | 51.9 | 57.6 | 57.0 | 50.1 | 39.7 | 24.5 | 18.0 | 57.6 |
| Year Highest Occurred | 2000 | 1995 | 1986 | 1992 | 1992 | 1988 | 1998 | 2000 | 1990 | 1988 | 1995 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | -2.8 | 2.4 | 16.1 | 25.5 | 32.9 | 42.1 | 47.9 | 47.7 | 38.3 | 29.7 | 13.7 | 2.3 | -2.8 |
| Year Lowest Occurred | 1984 | 1985 | 1976 | 1975 | 1975 | 1998 | 1993 | 1975 | 1971 | 1976 | 2000 | 1990 | 1984 |
| Mean Precipitation (in.) | 0.77 | 1.08 | 1.22 | 1.27 | 1.37 | 1.18 | 1.09 | 1.04 | 1.83 | 1.57 | 0.90 | 0.75 | 14.07 |
| Highest Precipitation (in.) | 2.14 | 2.58 | 2.48 | 3.58 | 4.55 | 4.10 | 2.85 | 4.10 | 8.90 | 5.00 | 2.68 | 1.67 | 8.90 |
| Year Highest Occurred | 1993 | 1980 | 1991 | 1999 | 1995 | 1998 | 1985 | 1997 | 1982 | 1994 | 1983 | 1996 | 1982 |
| Lowest Precipitation (in.) | 0.06 | 0.12 | 0.11 | 0.10 | 0.20 | 0.13 | 0.19 | 0.08 | 0.04 | 0.02 | 0.01 | 0.04 | 0.01 |
| Year Lowest Occurred | 1994 | 1988 | 1997 | 1992 | 1972 | 1987 | 1994 | 1985 | 1979 | 1988 | 1995 | 1993 | 1995 |
| Heating Degree Days (F) | 1369. | 1099. | 907. | 629. | 392. | 145. | 24. | 38. | 221. | 569. | 1003. | 1330. | 7726. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 53. | 142. | 109. | 17. | 0. | 0. | 0. | 324. |