| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 30.3 | 36.6 | 47.7 | 57.9 | 67.5 | 78.0 | 87.1 | 86.1 | 76.1 | 62.5 | 44.6 | 32.8 | 58.9 |
| Highest Mean Max. Temperature (F) | 39.0 | 46.9 | 57.2 | 67.9 | 75.8 | 85.4 | 91.6 | 90.5 | 83.7 | 71.8 | 55.6 | 41.1 | 91.6 |
| Year Highest Occurred | 1994 | 1995 | 1992 | 1992 | 1994 | 1988 | 1988 | 1994 | 1990 | 1988 | 1999 | 1995 | 1988 |
| Lowest Mean Max. Temperature (F) | 20.4 | 26.2 | 37.2 | 48.4 | 62.0 | 69.7 | 78.8 | 81.3 | 68.2 | 51.9 | 35.4 | 23.0 | 20.4 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1983 | 1998 | 1993 | 1976 | 1986 | 1984 | 1985 | 1985 | 1979 |
| Mean Temperature (F) | 21.3 | 26.4 | 36.6 | 45.0 | 53.5 | 61.9 | 69.4 | 68.2 | 58.6 | 46.9 | 33.6 | 23.3 | 45.4 |
| Highest Mean Temperature (F) | 30.2 | 34.6 | 43.7 | 51.8 | 59.3 | 67.1 | 72.6 | 71.6 | 65.0 | 53.3 | 40.8 | 31.3 | 72.6 |
| Year Highest Occurred | 1994 | 2000 | 1986 | 1992 | 1994 | 1988 | 1985 | 2000 | 1990 | 1988 | 1995 | 1995 | 1985 |
| Lowest Mean Temperature (F) | 10.2 | 14.5 | 26.7 | 38.4 | 49.6 | 56.5 | 61.8 | 64.4 | 53.8 | 40.7 | 27.0 | 13.2 | 10.2 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1975 | 1975 | 1998 | 1993 | 1976 | 1971 | 1984 | 1994 | 1990 | 1979 |
| Mean Min. Temperature (F) | 12.2 | 16.2 | 25.5 | 32.1 | 39.5 | 45.8 | 51.6 | 50.3 | 41.1 | 31.3 | 22.6 | 13.8 | 31.8 |
| Highest Mean Min. Temperature (F) | 21.3 | 25.5 | 31.4 | 36.2 | 44.0 | 49.7 | 55.8 | 53.9 | 46.6 | 35.2 | 27.8 | 23.5 | 55.8 |
| Year Highest Occurred | 1994 | 1986 | 1986 | 1981 | 1987 | 1977 | 1985 | 1983 | 1998 | 1998 | 1995 | 1977 | 1985 |
| Lowest Mean Min. Temperature (F) | 0.0 | 2.9 | 16.2 | 27.2 | 35.5 | 43.2 | 44.8 | 46.5 | 37.6 | 27.4 | 13.7 | 1.3 | 0.0 |
| Year Lowest Occurred | 1979 | 1985 | 1985 | 1973 | 1990 | 1995 | 1993 | 1996 | 1999 | 1995 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.39 | 1.26 | 1.47 | 1.39 | 2.14 | 1.20 | 0.94 | 1.05 | 1.31 | 1.61 | 1.20 | 1.33 | 16.29 |
| Highest Precipitation (in.) | 2.97 | 3.35 | 5.19 | 2.72 | 7.64 | 3.37 | 2.35 | 3.05 | 4.99 | 5.10 | 2.87 | 4.77 | 7.64 |
| Year Highest Occurred | 1997 | 1986 | 1982 | 1999 | 1981 | 1980 | 1997 | 1991 | 1986 | 1981 | 1983 | 1983 | 1981 |
| Lowest Precipitation (in.) | 0.53 | 0.05 | 0.23 | 0.18 | 0.25 | 0.09 | 0.05 | 0.00 | 0.05 | 0.06 | 0.04 | 0.10 | 0.00 |
| Year Lowest Occurred | 1992 | 1988 | 1988 | 1973 | 1972 | 1986 | 2000 | 1986 | 1974 | 1978 | 1993 | 1986 | 1986 |
| Heating Degree Days (F) | 1356. | 1080. | 881. | 600. | 359. | 140. | 24. | 28. | 217. | 560. | 942. | 1293. | 7480. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 46. | 160. | 127. | 26. | 0. | 0. | 0. | 362. |