| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 50.0 | 50.2 | 51.0 | 52.2 | 54.2 | 57.5 | 56.5 | 56.6 | 55.4 | 54.8 | 52.6 | 51.1 | 53.5 |
| Highest Mean Max. Temperature (F) | 56.4 | 57.3 | 56.5 | 57.7 | 59.3 | 61.1 | 59.9 | 60.3 | 57.7 | 57.7 | 56.4 | 55.9 | 61.1 |
| Year Highest Occurred | 1983 | 1998 | 1983 | 1993 | 1996 | 1995 | 1997 | 1999 | 1998 | 1997 | 1983 | 1986 | 1995 |
| Lowest Mean Max. Temperature (F) | 43.1 | 43.7 | 43.0 | 46.3 | 49.6 | 52.8 | 53.0 | 54.2 | 52.2 | 52.0 | 47.4 | 46.6 | 43.0 |
| Year Lowest Occurred | 1975 | 1976 | 1976 | 1989 | 1989 | 1974 | 1974 | 1978 | 1976 | 1974 | 1978 | 1975 | 1976 |
| Mean Temperature (F) | 42.0 | 42.0 | 42.6 | 43.7 | 45.8 | 48.9 | 48.1 | 48.2 | 47.3 | 46.7 | 45.0 | 43.2 | 45.3 |
| Highest Mean Temperature (F) | 47.8 | 47.0 | 47.4 | 47.8 | 49.9 | 52.0 | 50.9 | 50.7 | 49.3 | 48.7 | 48.2 | 47.2 | 52.0 |
| Year Highest Occurred | 1986 | 1998 | 1983 | 1993 | 1996 | 1995 | 1991 | 1986 | 1988 | 1987 | 1982 | 1986 | 1995 |
| Lowest Mean Temperature (F) | 36.3 | 37.1 | 36.7 | 39.5 | 42.3 | 45.0 | 44.8 | 45.0 | 44.4 | 44.4 | 40.6 | 39.1 | 36.3 |
| Year Lowest Occurred | 1975 | 1976 | 1976 | 1989 | 1976 | 1974 | 1975 | 1971 | 1976 | 1974 | 1978 | 1971 | 1975 |
| Mean Min. Temperature (F) | 33.9 | 33.7 | 34.1 | 35.1 | 37.4 | 40.3 | 39.6 | 39.7 | 39.1 | 38.6 | 37.3 | 35.2 | 37.0 |
| Highest Mean Min. Temperature (F) | 39.4 | 38.6 | 38.2 | 38.3 | 40.6 | 43.3 | 42.9 | 42.7 | 41.9 | 41.1 | 40.3 | 38.4 | 43.3 |
| Year Highest Occurred | 1986 | 1986 | 1983 | 1987 | 1992 | 1992 | 1991 | 1986 | 1986 | 1987 | 1991 | 1986 | 1992 |
| Lowest Mean Min. Temperature (F) | 29.1 | 30.5 | 30.4 | 31.0 | 33.2 | 37.1 | 36.2 | 35.7 | 36.5 | 36.7 | 33.1 | 31.3 | 29.1 |
| Year Lowest Occurred | 1971 | 1979 | 1976 | 1999 | 1971 | 1978 | 1975 | 1971 | 1971 | 1974 | 1974 | 1971 | 1971 |
| Mean Precipitation (in.) | 2.97 | 1.68 | 2.29 | 1.23 | 0.74 | 0.53 | 1.32 | 1.33 | 1.25 | 1.16 | 2.38 | 1.89 | 18.77 |
| Highest Precipitation (in.) | 12.78 | 10.12 | 15.57 | 9.41 | 5.04 | 2.49 | 5.39 | 5.54 | 4.57 | 4.52 | 10.32 | 16.54 | 16.54 |
| Year Highest Occurred | 1990 | 1982 | 1980 | 1986 | 1989 | 1983 | 1993 | 1982 | 1992 | 1979 | 1990 | 1987 | 1987 |
| Lowest Precipitation (in.) | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Year Lowest Occurred | 1986 | 1983 | 1998 | 1994 | 1996 | 1993 | 1988 | 1999 | 1995 | 1981 | 1991 | 2000 | 1986 |
| Heating Degree Days (F) | 715. | 645. | 679. | 641. | 595. | 483. | 526. | 523. | 534. | 568. | 602. | 678. | 7189. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 0. |