| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.7 | 53.6 | 56.0 | 59.2 | 63.2 | 66.6 | 69.4 | 70.0 | 70.1 | 63.4 | 54.5 | 50.4 | 60.6 |
| Highest Mean Max. Temperature (F) | 55.4 | 60.2 | 61.1 | 64.1 | 70.3 | 68.9 | 72.8 | 74.8 | 76.3 | 68.1 | 60.2 | 53.4 | 76.3 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1989 | 1992 | 1996 | 1995 | 1994 | 1991 | 1991 | 1976 | 1979 | 1991 |
| Lowest Mean Max. Temperature (F) | 43.5 | 47.4 | 51.5 | 54.7 | 60.2 | 62.4 | 65.3 | 65.5 | 64.8 | 59.5 | 47.9 | 44.3 | 43.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1982 | 1971 | 1982 | 1971 | 1980 | 1986 | 1981 | 1985 | 1978 | 1979 |
| Mean Temperature (F) | 43.6 | 45.9 | 47.3 | 49.9 | 53.6 | 57.1 | 59.7 | 60.4 | 59.5 | 54.0 | 47.6 | 43.6 | 51.9 |
| Highest Mean Temperature (F) | 47.8 | 51.0 | 51.3 | 54.5 | 58.3 | 59.5 | 62.1 | 63.4 | 63.8 | 56.3 | 51.5 | 46.8 | 63.8 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1992 | 1997 | 1992 | 1995 | 1994 | 1997 | 1988 | 1995 | 1995 | 1997 |
| Lowest Mean Temperature (F) | 37.2 | 39.4 | 43.6 | 45.8 | 51.4 | 54.8 | 57.0 | 56.5 | 55.4 | 50.8 | 41.0 | 37.6 | 37.2 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1982 | 1984 | 1971 | 1980 | 1986 | 1999 | 1985 | 1978 | 1979 |
| Mean Min. Temperature (F) | 36.5 | 38.2 | 38.6 | 40.5 | 43.9 | 47.5 | 49.9 | 50.7 | 48.9 | 44.6 | 40.6 | 36.7 | 43.1 |
| Highest Mean Min. Temperature (F) | 42.5 | 42.4 | 43.0 | 45.2 | 48.0 | 51.2 | 53.5 | 53.4 | 54.2 | 49.2 | 45.2 | 41.6 | 54.2 |
| Year Highest Occurred | 1998 | 1991 | 1983 | 1992 | 1993 | 1978 | 1998 | 1999 | 1997 | 1979 | 1995 | 1977 | 1997 |
| Lowest Mean Min. Temperature (F) | 30.9 | 31.4 | 34.3 | 35.5 | 41.0 | 44.0 | 47.1 | 47.2 | 45.3 | 38.7 | 34.0 | 30.7 | 30.7 |
| Year Lowest Occurred | 1979 | 1989 | 2000 | 1975 | 1977 | 1976 | 1984 | 1988 | 1972 | 1999 | 1985 | 1990 | 1990 |
| Mean Precipitation (in.) | 10.83 | 9.34 | 8.96 | 5.24 | 3.80 | 2.47 | 0.92 | 1.14 | 2.27 | 5.34 | 10.76 | 11.96 | 73.03 |
| Highest Precipitation (in.) | 20.02 | 17.69 | 18.41 | 10.47 | 8.26 | 5.39 | 3.80 | 3.24 | 7.46 | 12.01 | 19.73 | 22.67 | 22.67 |
| Year Highest Occurred | 1995 | 1986 | 1974 | 1978 | 1988 | 1993 | 1983 | 1971 | 1997 | 1979 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.86 | 2.59 | 2.14 | 1.34 | 0.14 | 0.39 | 0.03 | 0.00 | 0.00 | 0.49 | 2.38 | 2.54 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1992 | 1977 | 1992 | 1992 | 1973 | 1998 | 1975 | 1987 | 1993 | 1976 | 1998 |
| Heating Degree Days (F) | 664. | 535. | 534. | 455. | 355. | 239. | 168. | 152. | 175. | 342. | 524. | 666. | 4809. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 3. | 7. | 10. | 0. | 0. | 0. | 20. |