| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 47.5 | 51.7 | 55.6 | 59.7 | 65.6 | 71.7 | 79.7 | 80.6 | 75.4 | 64.6 | 52.8 | 46.9 | 62.7 |
| Highest Mean Max. Temperature (F) | 51.7 | 58.3 | 61.6 | 66.5 | 73.9 | 77.5 | 86.1 | 86.2 | 82.5 | 72.1 | 57.7 | 51.5 | 86.2 |
| Year Highest Occurred | 1992 | 1992 | 1992 | 1987 | 1992 | 1992 | 1985 | 1986 | 1974 | 1987 | 1999 | 1980 | 1986 |
| Lowest Mean Max. Temperature (F) | 39.1 | 45.1 | 50.3 | 54.0 | 60.2 | 65.9 | 72.2 | 75.0 | 69.0 | 59.1 | 45.2 | 40.8 | 39.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1980 | 1983 | 1976 | 1978 | 1984 | 1985 | 1990 | 1979 |
| Mean Temperature (F) | 41.1 | 44.2 | 47.2 | 50.6 | 55.4 | 60.6 | 66.5 | 67.0 | 62.8 | 54.9 | 46.3 | 41.1 | 53.1 |
| Highest Mean Temperature (F) | 45.6 | 49.5 | 52.0 | 54.9 | 61.1 | 65.2 | 70.5 | 70.8 | 66.3 | 58.7 | 50.8 | 45.3 | 70.8 |
| Year Highest Occurred | 1998 | 1992 | 1992 | 1992 | 1992 | 1992 | 1985 | 1986 | 1974 | 1988 | 1999 | 1979 | 1986 |
| Lowest Mean Temperature (F) | 32.1 | 36.8 | 43.1 | 45.5 | 51.2 | 56.9 | 62.2 | 63.8 | 58.8 | 51.0 | 39.3 | 34.6 | 32.1 |
| Year Lowest Occurred | 1979 | 1989 | 1971 | 1975 | 1977 | 1976 | 1993 | 1975 | 1985 | 1971 | 1985 | 1990 | 1979 |
| Mean Min. Temperature (F) | 34.6 | 36.6 | 38.8 | 41.4 | 45.2 | 49.5 | 53.3 | 53.3 | 50.2 | 45.1 | 39.8 | 35.2 | 43.6 |
| Highest Mean Min. Temperature (F) | 40.0 | 41.0 | 42.4 | 45.6 | 49.2 | 52.8 | 56.5 | 56.0 | 54.0 | 49.6 | 44.3 | 39.8 | 56.5 |
| Year Highest Occurred | 1998 | 1991 | 1992 | 1992 | 1997 | 1992 | 1998 | 1990 | 1995 | 1988 | 1995 | 1977 | 1998 |
| Lowest Mean Min. Temperature (F) | 25.2 | 28.5 | 34.7 | 37.0 | 42.3 | 45.3 | 49.7 | 49.9 | 46.4 | 41.6 | 33.4 | 28.4 | 25.2 |
| Year Lowest Occurred | 1979 | 1989 | 1985 | 1975 | 1977 | 1976 | 1977 | 1973 | 1972 | 1974 | 1985 | 1990 | 1979 |
| Mean Precipitation (in.) | 6.03 | 5.21 | 5.05 | 4.23 | 3.47 | 2.12 | 0.79 | 1.10 | 1.76 | 3.28 | 7.11 | 6.57 | 46.72 |
| Highest Precipitation (in.) | 11.23 | 9.96 | 10.25 | 7.82 | 7.32 | 4.94 | 3.52 | 4.07 | 4.54 | 7.11 | 16.92 | 15.43 | 16.92 |
| Year Highest Occurred | 2000 | 1986 | 1989 | 1993 | 1998 | 1993 | 1987 | 1989 | 1986 | 1996 | 1973 | 1981 | 1973 |
| Lowest Precipitation (in.) | 0.74 | 1.52 | 1.59 | 1.66 | 0.67 | 0.58 | 0.01 | 0.00 | 0.09 | 0.12 | 2.09 | 1.23 | 0.00 |
| Year Lowest Occurred | 1985 | 1988 | 1992 | 1987 | 1982 | 1977 | 1972 | 2000 | 1991 | 1987 | 1993 | 1976 | 2000 |
| Heating Degree Days (F) | 743. | 584. | 552. | 434. | 301. | 152. | 52. | 36. | 112. | 316. | 560. | 742. | 4584. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 4. | 20. | 99. | 95. | 45. | 1. | 0. | 0. | 264. |