| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 45.9 | 49.4 | 52.7 | 57.0 | 63.5 | 69.3 | 75.8 | 76.4 | 72.6 | 62.6 | 50.9 | 45.7 | 60.2 |
| Highest Mean Max. Temperature (F) | 50.4 | 56.2 | 59.8 | 62.3 | 72.8 | 75.3 | 83.0 | 81.6 | 81.0 | 70.9 | 57.7 | 50.5 | 83.0 |
| Year Highest Occurred | 1977 | 1991 | 1992 | 1989 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1976 | 1980 | 1985 |
| Lowest Mean Max. Temperature (F) | 40.1 | 42.4 | 46.3 | 50.5 | 56.8 | 63.1 | 67.9 | 70.8 | 65.8 | 55.3 | 40.8 | 39.5 | 39.5 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1972 | 1977 | 1971 | 1993 | 1976 | 1977 | 1984 | 1985 | 1990 | 1990 |
| Mean Temperature (F) | 39.0 | 41.4 | 43.6 | 46.6 | 52.0 | 56.8 | 61.8 | 62.1 | 58.8 | 51.2 | 43.5 | 39.1 | 49.7 |
| Highest Mean Temperature (F) | 42.6 | 47.0 | 47.8 | 50.1 | 57.2 | 61.3 | 65.1 | 64.9 | 62.6 | 55.8 | 48.0 | 43.0 | 65.1 |
| Year Highest Occurred | 1995 | 1991 | 1992 | 1989 | 1992 | 1992 | 1996 | 1977 | 1974 | 1988 | 1995 | 1979 | 1996 |
| Lowest Mean Temperature (F) | 31.9 | 33.9 | 38.6 | 41.8 | 47.1 | 52.6 | 58.2 | 58.1 | 54.9 | 47.7 | 34.9 | 33.0 | 31.9 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1971 | 1993 | 1973 | 1986 | 1984 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 32.0 | 33.3 | 34.4 | 36.2 | 40.4 | 44.3 | 47.7 | 47.8 | 45.0 | 39.8 | 36.0 | 32.5 | 39.1 |
| Highest Mean Min. Temperature (F) | 36.7 | 37.8 | 37.9 | 39.3 | 44.3 | 47.2 | 51.4 | 51.6 | 49.3 | 45.1 | 41.1 | 37.6 | 51.6 |
| Year Highest Occurred | 1995 | 1991 | 1983 | 1990 | 1993 | 1992 | 1998 | 1977 | 1995 | 1988 | 1995 | 1973 | 1977 |
| Lowest Mean Min. Temperature (F) | 23.7 | 25.3 | 30.7 | 31.6 | 37.4 | 41.1 | 44.2 | 43.3 | 42.7 | 35.8 | 28.6 | 25.7 | 23.7 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1977 | 1973 | 1972 | 1974 | 1993 | 1985 | 1979 |
| Mean Precipitation (in.) | 18.88 | 17.28 | 14.36 | 9.07 | 5.82 | 3.91 | 1.25 | 1.77 | 3.95 | 8.81 | 21.03 | 21.58 | 127.71 |
| Highest Precipitation (in.) | 33.74 | 37.33 | 26.51 | 17.68 | 11.10 | 9.75 | 5.16 | 6.41 | 9.55 | 18.81 | 38.31 | 35.12 | 38.31 |
| Year Highest Occurred | 1972 | 1999 | 1983 | 1996 | 1984 | 1981 | 1974 | 1975 | 1978 | 1975 | 1973 | 1973 | 1973 |
| Lowest Precipitation (in.) | 1.25 | 2.18 | 2.97 | 2.55 | 0.59 | 1.09 | 0.00 | 0.15 | 0.02 | 0.59 | 4.43 | 6.47 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1992 | 1977 | 1992 | 1987 | 1973 | 1986 | 1975 | 1987 | 1976 | 1985 | 1973 |
| Heating Degree Days (F) | 808. | 663. | 648. | 553. | 405. | 250. | 126. | 115. | 200. | 427. | 646. | 804. | 5645. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 4. | 24. | 24. | 13. | 0. | 0. | 0. | 65. |