| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 44.7 | 47.7 | 51.9 | 56.9 | 62.3 | 66.3 | 69.8 | 70.1 | 66.3 | 57.6 | 49.6 | 45.1 | 57.4 |
| Highest Mean Max. Temperature (F) | 51.2 | 52.7 | 56.5 | 61.0 | 65.7 | 71.3 | 73.3 | 72.7 | 70.4 | 62.6 | 54.1 | 49.3 | 73.3 |
| Year Highest Occurred | 1986 | 1977 | 1992 | 1989 | 1993 | 1978 | 1985 | 1971 | 1974 | 1987 | 1997 | 1979 | 1985 |
| Lowest Mean Max. Temperature (F) | 39.1 | 40.5 | 47.2 | 52.4 | 58.6 | 62.5 | 66.3 | 66.2 | 61.8 | 53.7 | 38.2 | 39.1 | 38.2 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1974 | 1971 | 1986 | 1975 | 1972 | 1984 | 1985 | 1983 | 1985 |
| Mean Temperature (F) | 39.2 | 41.6 | 44.7 | 48.4 | 52.9 | 56.5 | 59.5 | 59.9 | 56.8 | 50.2 | 43.9 | 39.8 | 49.5 |
| Highest Mean Temperature (F) | 44.8 | 45.6 | 48.3 | 51.1 | 56.8 | 60.0 | 61.4 | 62.0 | 59.5 | 52.6 | 46.9 | 44.1 | 62.0 |
| Year Highest Occurred | 1986 | 1998 | 1992 | 1992 | 1993 | 1978 | 1996 | 1997 | 1974 | 2000 | 1999 | 1979 | 1997 |
| Lowest Mean Temperature (F) | 33.4 | 34.2 | 40.3 | 44.1 | 49.6 | 53.6 | 56.7 | 57.3 | 53.4 | 47.1 | 33.5 | 33.7 | 33.4 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1972 | 1974 | 1971 | 1986 | 1973 | 1972 | 1984 | 1985 | 1983 | 1979 |
| Mean Min. Temperature (F) | 33.7 | 35.5 | 37.4 | 39.9 | 43.5 | 46.7 | 49.1 | 49.7 | 47.3 | 42.8 | 38.1 | 34.5 | 41.5 |
| Highest Mean Min. Temperature (F) | 39.5 | 39.7 | 40.6 | 43.3 | 47.8 | 49.8 | 51.4 | 52.2 | 50.3 | 45.8 | 41.6 | 38.9 | 52.2 |
| Year Highest Occurred | 1994 | 1998 | 1983 | 1996 | 1993 | 1992 | 1996 | 1997 | 1979 | 1988 | 1998 | 1979 | 1997 |
| Lowest Mean Min. Temperature (F) | 27.7 | 27.8 | 33.5 | 35.6 | 40.5 | 43.7 | 47.2 | 47.5 | 44.7 | 40.2 | 28.9 | 28.2 | 27.7 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1972 | 1974 | 1976 | 1986 | 1973 | 1988 | 1972 | 1985 | 1983 | 1979 |
| Mean Precipitation (in.) | 3.86 | 2.79 | 2.27 | 1.89 | 1.72 | 1.40 | 0.94 | 1.06 | 1.34 | 2.42 | 4.38 | 4.09 | 28.16 |
| Highest Precipitation (in.) | 7.75 | 6.36 | 4.00 | 3.53 | 3.68 | 2.89 | 2.97 | 3.07 | 3.03 | 5.54 | 8.79 | 8.35 | 8.79 |
| Year Highest Occurred | 1971 | 1982 | 1972 | 1972 | 2000 | 1980 | 1982 | 1975 | 1983 | 1985 | 1995 | 1979 | 1995 |
| Lowest Precipitation (in.) | 0.62 | 0.42 | 1.13 | 0.48 | 0.39 | 0.38 | 0.00 | 0.00 | 0.05 | 0.22 | 1.13 | 0.60 | 0.00 |
| Year Lowest Occurred | 1985 | 1993 | 1996 | 1998 | 1995 | 1996 | 1984 | 1986 | 1991 | 1987 | 1976 | 1985 | 1984 |
| Heating Degree Days (F) | 800. | 655. | 631. | 499. | 375. | 255. | 172. | 160. | 248. | 459. | 635. | 781. | 5670. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 0. | 0. | 0. | 0. | 1. |