| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.6 | 44.9 | 55.0 | 63.2 | 72.2 | 81.3 | 89.9 | 88.9 | 78.7 | 65.9 | 48.5 | 37.7 | 63.6 |
| Highest Mean Max. Temperature (F) | 46.0 | 52.4 | 62.7 | 72.2 | 80.0 | 91.4 | 95.5 | 94.5 | 86.5 | 74.6 | 56.6 | 44.6 | 95.5 |
| Year Highest Occurred | 1998 | 1995 | 1992 | 1977 | 1992 | 1974 | 1985 | 1971 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Max. Temperature (F) | 25.0 | 28.8 | 48.9 | 54.2 | 66.7 | 73.9 | 78.9 | 82.2 | 69.2 | 60.6 | 37.6 | 22.5 | 22.5 |
| Year Lowest Occurred | 1979 | 1989 | 1976 | 1975 | 1977 | 1993 | 1993 | 1976 | 1985 | 1984 | 1985 | 1985 | 1985 |
| Mean Temperature (F) | 29.8 | 36.4 | 44.0 | 50.6 | 58.6 | 66.8 | 74.0 | 72.9 | 63.6 | 52.5 | 39.5 | 30.9 | 51.6 |
| Highest Mean Temperature (F) | 37.9 | 42.3 | 49.3 | 56.2 | 63.5 | 74.1 | 79.5 | 78.1 | 70.2 | 59.6 | 45.5 | 38.6 | 79.5 |
| Year Highest Occurred | 1998 | 1992 | 1978 | 1977 | 1992 | 1974 | 1985 | 1986 | 1990 | 1988 | 1999 | 1973 | 1985 |
| Lowest Mean Temperature (F) | 16.8 | 20.3 | 38.1 | 44.3 | 54.4 | 61.1 | 63.9 | 67.2 | 56.7 | 48.3 | 28.4 | 15.0 | 15.0 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1991 | 1993 | 1993 | 1993 | 1985 | 1985 | 1985 | 1985 | 1985 |
| Mean Min. Temperature (F) | 23.0 | 27.8 | 32.9 | 37.9 | 45.0 | 52.2 | 58.0 | 56.8 | 48.5 | 39.1 | 30.5 | 24.0 | 39.6 |
| Highest Mean Min. Temperature (F) | 32.6 | 34.9 | 38.4 | 41.9 | 48.7 | 58.8 | 63.7 | 62.8 | 54.4 | 44.6 | 36.6 | 32.7 | 63.7 |
| Year Highest Occurred | 1978 | 1983 | 1983 | 1980 | 1980 | 1986 | 1975 | 1986 | 1998 | 1988 | 1973 | 1973 | 1975 |
| Lowest Mean Min. Temperature (F) | 8.7 | 11.8 | 26.7 | 33.3 | 39.4 | 47.8 | 48.8 | 51.1 | 43.4 | 34.6 | 19.2 | 7.6 | 7.6 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1999 | 1999 | 1998 | 1993 | 1995 | 1982 | 1985 | 1985 | 1985 | 1985 |
| Mean Precipitation (in.) | 1.72 | 1.60 | 1.58 | 1.21 | 1.29 | 0.82 | 0.30 | 0.33 | 0.71 | 0.87 | 1.72 | 1.66 | 13.81 |
| Highest Precipitation (in.) | 3.59 | 3.81 | 4.23 | 3.29 | 4.67 | 2.23 | 1.25 | 1.66 | 2.91 | 2.26 | 3.94 | 4.54 | 4.67 |
| Year Highest Occurred | 1997 | 1986 | 1993 | 1978 | 1998 | 1993 | 1983 | 1989 | 1986 | 2000 | 1984 | 1996 | 1998 |
| Lowest Precipitation (in.) | 0.26 | 0.41 | 0.04 | 0.13 | 0.00 | 0.08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.12 | 0.00 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1994 | 1987 | 1974 | 1994 | 2000 | 2000 | 1999 | 1988 | 1976 | 1976 | 1974 |
| Heating Degree Days (F) | 1090. | 801. | 653. | 435. | 220. | 80. | 16. | 16. | 123. | 390. | 764. | 1058. | 5646. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 2. | 22. | 133. | 294. | 259. | 80. | 2. | 0. | 0. | 792. |