| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 43.1 | 46.5 | 52.0 | 60.5 | 69.9 | 81.2 | 84.2 | 81.1 | 75.2 | 64.0 | 51.4 | 43.9 | 62.8 |
| Highest Mean Max. Temperature (F) | 51.7 | 53.5 | 62.1 | 71.1 | 78.4 | 87.4 | 87.7 | 84.9 | 81.2 | 69.6 | 61.1 | 51.2 | 87.7 |
| Year Highest Occurred | 1986 | 1995 | 1972 | 1989 | 1984 | 1974 | 1993 | 1995 | 1979 | 1979 | 1999 | 1977 | 1993 |
| Lowest Mean Max. Temperature (F) | 36.1 | 40.2 | 43.1 | 52.1 | 64.0 | 77.0 | 78.9 | 76.8 | 69.6 | 57.3 | 43.2 | 37.6 | 36.1 |
| Year Lowest Occurred | 1979 | 1987 | 1973 | 1975 | 1980 | 1998 | 1999 | 1999 | 1986 | 1984 | 2000 | 1991 | 1979 |
| Mean Temperature (F) | 27.5 | 30.9 | 36.0 | 43.0 | 51.5 | 60.7 | 65.8 | 63.6 | 57.1 | 45.6 | 34.7 | 27.8 | 45.4 |
| Highest Mean Temperature (F) | 33.9 | 37.1 | 42.5 | 49.5 | 58.1 | 67.2 | 68.2 | 67.3 | 60.1 | 49.9 | 39.2 | 35.1 | 68.2 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 1989 | 1996 | 1994 | 1996 | 1995 | 1983 | 1988 | 1995 | 1980 | 1996 |
| Lowest Mean Temperature (F) | 20.6 | 26.9 | 29.2 | 37.5 | 46.8 | 57.0 | 62.6 | 61.4 | 54.1 | 40.9 | 28.6 | 20.6 | 20.6 |
| Year Lowest Occurred | 1989 | 1985 | 1973 | 1998 | 1977 | 1991 | 1987 | 1976 | 1988 | 1971 | 2000 | 1990 | 1989 |
| Mean Min. Temperature (F) | 11.8 | 15.3 | 20.0 | 25.5 | 33.0 | 40.2 | 47.4 | 46.0 | 39.0 | 27.2 | 17.9 | 11.7 | 27.9 |
| Highest Mean Min. Temperature (F) | 18.3 | 20.7 | 25.0 | 30.0 | 40.0 | 47.4 | 51.5 | 50.6 | 44.3 | 32.5 | 22.7 | 22.4 | 51.5 |
| Year Highest Occurred | 1999 | 1995 | 1989 | 1990 | 1996 | 1994 | 1996 | 1994 | 1997 | 1972 | 1985 | 1983 | 1996 |
| Lowest Mean Min. Temperature (F) | 3.4 | 9.2 | 15.2 | 21.6 | 27.8 | 35.9 | 42.8 | 41.2 | 34.8 | 24.2 | 13.0 | 2.6 | 2.6 |
| Year Lowest Occurred | 1989 | 1985 | 1977 | 1998 | 1977 | 1991 | 1993 | 1976 | 1988 | 1971 | 1976 | 1990 | 1990 |
| Mean Precipitation (in.) | 1.24 | 1.30 | 1.33 | 0.79 | 0.72 | 0.49 | 2.42 | 2.80 | 1.93 | 1.39 | 1.27 | 1.38 | 17.06 |
| Highest Precipitation (in.) | 5.12 | 3.71 | 3.92 | 2.84 | 5.00 | 3.43 | 6.01 | 5.10 | 6.75 | 8.90 | 6.08 | 7.17 | 8.90 |
| Year Highest Occurred | 1993 | 1980 | 1991 | 1999 | 1992 | 1988 | 1981 | 2000 | 1990 | 1972 | 1978 | 1992 | 1972 |
| Lowest Precipitation (in.) | 0.00 | 0.06 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.46 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1972 | 1972 | 1997 | 1993 | 1996 | 1998 | 1993 | 1976 | 1973 | 1999 | 1999 | 1973 | 1972 |
| Heating Degree Days (F) | 1164. | 954. | 899. | 660. | 423. | 161. | 35. | 74. | 241. | 601. | 912. | 1153. | 7277. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 3. | 32. | 59. | 28. | 3. | 0. | 0. | 0. | 125. |