| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 25.3 | 30.1 | 40.1 | 50.7 | 61.2 | 72.7 | 81.0 | 79.7 | 68.4 | 55.6 | 37.1 | 26.7 | 52.4 |
| Highest Mean Max. Temperature (F) | 36.9 | 41.0 | 51.8 | 62.9 | 71.1 | 82.0 | 87.3 | 84.7 | 77.1 | 66.2 | 46.8 | 40.1 | 87.3 |
| Year Highest Occurred | 1981 | 1977 | 1992 | 1992 | 1992 | 1988 | 1988 | 1971 | 1979 | 1988 | 1981 | 1980 | 1988 |
| Lowest Mean Max. Temperature (F) | 13.0 | 11.1 | 30.9 | 39.6 | 52.4 | 55.7 | 70.5 | 72.8 | 59.6 | 45.0 | 20.1 | 15.5 | 11.1 |
| Year Lowest Occurred | 1993 | 1993 | 1998 | 1999 | 1999 | 1998 | 1993 | 1998 | 2000 | 2000 | 2000 | 1997 | 1993 |
| Mean Temperature (F) | 11.5 | 15.6 | 26.8 | 36.1 | 46.0 | 55.5 | 62.6 | 60.8 | 49.9 | 38.0 | 22.9 | 12.7 | 36.5 |
| Highest Mean Temperature (F) | 20.6 | 26.5 | 37.4 | 44.5 | 54.2 | 62.0 | 68.5 | 66.1 | 56.7 | 47.2 | 32.2 | 25.2 | 68.5 |
| Year Highest Occurred | 1996 | 1991 | 1992 | 1992 | 1992 | 1988 | 1989 | 1971 | 1990 | 1988 | 1995 | 1980 | 1989 |
| Lowest Mean Temperature (F) | -0.2 | -2.5 | 17.6 | 27.9 | 40.6 | 43.8 | 53.0 | 54.6 | 43.2 | 31.3 | 6.5 | 0.6 | -2.5 |
| Year Lowest Occurred | 1979 | 1993 | 1998 | 1999 | 1999 | 1998 | 1993 | 1993 | 2000 | 2000 | 2000 | 1992 | 1993 |
| Mean Min. Temperature (F) | -2.4 | 1.1 | 13.5 | 21.5 | 30.8 | 38.3 | 44.1 | 41.8 | 31.4 | 20.4 | 8.7 | -1.4 | 20.7 |
| Highest Mean Min. Temperature (F) | 8.0 | 12.4 | 22.9 | 28.5 | 37.3 | 43.9 | 50.0 | 47.7 | 38.8 | 28.1 | 19.3 | 10.2 | 50.0 |
| Year Highest Occurred | 1971 | 1991 | 1992 | 1990 | 1992 | 1972 | 1990 | 1983 | 1990 | 1988 | 1995 | 1980 | 1990 |
| Lowest Mean Min. Temperature (F) | -14.5 | -16.1 | 3.5 | 14.0 | 26.6 | 31.2 | 35.5 | 35.6 | 25.6 | 12.9 | -7.2 | -14.4 | -16.1 |
| Year Lowest Occurred | 1979 | 1993 | 1977 | 1993 | 1978 | 2000 | 1993 | 1993 | 1993 | 1976 | 2000 | 1992 | 1993 |
| Mean Precipitation (in.) | 0.29 | 0.27 | 0.36 | 0.74 | 1.23 | 0.78 | 0.80 | 0.72 | 0.93 | 0.67 | 0.38 | 0.21 | 7.38 |
| Highest Precipitation (in.) | 1.01 | 0.97 | 1.23 | 2.20 | 3.06 | 3.44 | 2.85 | 2.05 | 5.24 | 2.33 | 1.24 | 0.92 | 5.24 |
| Year Highest Occurred | 1980 | 1986 | 1998 | 1999 | 1987 | 1998 | 1973 | 1997 | 1982 | 1986 | 1983 | 1983 | 1982 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.15 | 0.02 | 0.00 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1989 | 1991 | 1984 | 1985 | 1974 | 1973 | 1988 | 1985 | 1974 | 1999 | 1976 | 1998 | 1989 |
| Heating Degree Days (F) | 1661. | 1383. | 1184. | 867. | 589. | 311. | 152. | 176. | 457. | 837. | 1263. | 1625. | 10505. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 26. | 76. | 43. | 3. | 0. | 0. | 0. | 148. |