| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 51.4 | 53.5 | 54.7 | 56.7 | 59.8 | 62.7 | 65.0 | 65.7 | 65.3 | 61.2 | 55.0 | 51.4 | 58.5 |
| Highest Mean Max. Temperature (F) | 57.7 | 59.5 | 59.2 | 61.0 | 64.0 | 65.7 | 67.6 | 68.7 | 69.6 | 64.4 | 60.3 | 54.9 | 69.6 |
| Year Highest Occurred | 1981 | 1992 | 1978 | 1989 | 1997 | 1978 | 1995 | 1997 | 1991 | 1978 | 1976 | 1979 | 1991 |
| Lowest Mean Max. Temperature (F) | 44.7 | 46.1 | 50.2 | 52.4 | 55.7 | 59.2 | 61.8 | 62.0 | 60.9 | 57.6 | 47.2 | 46.0 | 44.7 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1971 | 1971 | 1971 | 1973 | 1986 | 1975 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 45.0 | 46.4 | 47.3 | 48.9 | 52.3 | 55.6 | 57.9 | 58.3 | 57.2 | 53.1 | 48.5 | 45.1 | 51.3 |
| Highest Mean Temperature (F) | 49.9 | 52.3 | 51.3 | 53.1 | 57.2 | 58.4 | 60.6 | 62.3 | 61.7 | 55.2 | 53.5 | 48.2 | 62.3 |
| Year Highest Occurred | 1981 | 1992 | 1992 | 1992 | 1997 | 1997 | 1995 | 1997 | 1997 | 1979 | 1995 | 1995 | 1997 |
| Lowest Mean Temperature (F) | 37.1 | 39.2 | 43.1 | 43.5 | 49.5 | 52.6 | 55.3 | 54.0 | 54.0 | 50.0 | 39.9 | 38.6 | 37.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1971 | 1971 | 1986 | 1986 | 1972 | 1971 | 1985 | 1978 | 1979 |
| Mean Min. Temperature (F) | 38.6 | 39.2 | 39.8 | 41.0 | 44.8 | 48.4 | 50.7 | 50.9 | 49.0 | 44.9 | 41.9 | 38.8 | 44.0 |
| Highest Mean Min. Temperature (F) | 43.5 | 45.2 | 44.0 | 46.7 | 50.4 | 52.2 | 54.6 | 55.8 | 54.3 | 49.1 | 48.0 | 43.4 | 55.8 |
| Year Highest Occurred | 1998 | 1992 | 1993 | 1992 | 1997 | 1993 | 1998 | 1997 | 1997 | 1988 | 1995 | 1995 | 1997 |
| Lowest Mean Min. Temperature (F) | 29.5 | 32.4 | 35.4 | 34.5 | 41.1 | 44.1 | 45.6 | 45.7 | 44.7 | 40.5 | 32.6 | 30.4 | 29.5 |
| Year Lowest Occurred | 1979 | 1989 | 1975 | 1975 | 1975 | 1976 | 1986 | 1986 | 1972 | 1974 | 1985 | 1978 | 1979 |
| Mean Precipitation (in.) | 10.25 | 8.69 | 7.74 | 4.87 | 3.68 | 2.72 | 1.04 | 1.02 | 2.39 | 5.12 | 10.67 | 11.38 | 69.57 |
| Highest Precipitation (in.) | 16.54 | 16.81 | 13.84 | 8.41 | 7.21 | 5.86 | 3.30 | 3.19 | 6.32 | 11.39 | 22.13 | 22.44 | 22.44 |
| Year Highest Occurred | 1983 | 1999 | 1983 | 1996 | 1988 | 1985 | 1974 | 1978 | 1971 | 1975 | 1973 | 1996 | 1996 |
| Lowest Precipitation (in.) | 0.68 | 1.56 | 1.22 | 1.20 | 0.34 | 0.41 | 0.13 | 0.07 | 0.03 | 0.13 | 2.06 | 2.88 | 0.03 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1992 | 1992 | 1973 | 1998 | 1975 | 1987 | 1976 | 1976 | 1975 |
| Heating Degree Days (F) | 619. | 522. | 535. | 484. | 393. | 284. | 222. | 213. | 239. | 370. | 498. | 617. | 4996. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 5. | 3. | 0. | 0. | 0. | 8. |