| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 56.7 | 58.3 | 59.1 | 60.6 | 62.6 | 65.2 | 66.0 | 67.2 | 67.7 | 65.9 | 61.2 | 57.3 | 62.3 |
| Highest Mean Max. Temperature (F) | 60.0 | 61.2 | 63.2 | 65.8 | 67.7 | 69.5 | 69.7 | 71.4 | 73.9 | 69.4 | 66.3 | 60.8 | 73.9 |
| Year Highest Occurred | 1981 | 1987 | 1978 | 1987 | 1997 | 1993 | 1983 | 1997 | 1997 | 1995 | 1990 | 2000 | 1997 |
| Lowest Mean Max. Temperature (F) | 53.3 | 53.7 | 54.7 | 53.6 | 57.8 | 59.6 | 63.1 | 62.2 | 63.9 | 61.7 | 55.7 | 52.8 | 52.8 |
| Year Lowest Occurred | 1974 | 1975 | 1973 | 1975 | 1974 | 1975 | 1981 | 1973 | 1975 | 1975 | 1973 | 1972 | 1972 |
| Mean Temperature (F) | 48.6 | 50.2 | 50.6 | 51.4 | 53.4 | 55.8 | 57.0 | 58.0 | 57.9 | 56.0 | 52.2 | 48.9 | 53.3 |
| Highest Mean Temperature (F) | 53.0 | 53.2 | 55.7 | 54.9 | 57.1 | 60.4 | 59.6 | 61.6 | 63.1 | 58.9 | 57.0 | 52.7 | 63.1 |
| Year Highest Occurred | 1998 | 1996 | 1978 | 2000 | 1997 | 1981 | 1992 | 1997 | 1997 | 1995 | 1997 | 1995 | 1997 |
| Lowest Mean Temperature (F) | 44.4 | 45.6 | 46.2 | 46.7 | 51.2 | 53.8 | 54.5 | 55.1 | 54.7 | 52.1 | 47.5 | 44.0 | 44.0 |
| Year Lowest Occurred | 1987 | 1989 | 1976 | 1975 | 1974 | 1975 | 1994 | 1973 | 1985 | 1971 | 1994 | 1985 | 1985 |
| Mean Min. Temperature (F) | 40.5 | 42.0 | 42.1 | 42.2 | 44.2 | 46.4 | 47.9 | 48.8 | 48.1 | 46.0 | 43.2 | 40.4 | 44.3 |
| Highest Mean Min. Temperature (F) | 47.8 | 47.2 | 48.1 | 45.2 | 47.1 | 52.0 | 51.0 | 52.5 | 52.3 | 49.3 | 49.2 | 47.0 | 52.5 |
| Year Highest Occurred | 1998 | 1983 | 1978 | 1996 | 1987 | 1981 | 1972 | 1981 | 1997 | 1992 | 1997 | 1995 | 1981 |
| Lowest Mean Min. Temperature (F) | 32.5 | 36.9 | 37.4 | 37.0 | 39.5 | 42.4 | 44.2 | 44.2 | 43.5 | 40.7 | 37.6 | 32.8 | 32.5 |
| Year Lowest Occurred | 1987 | 1989 | 1985 | 1986 | 1985 | 1994 | 1993 | 1994 | 1993 | 1985 | 1994 | 1990 | 1987 |
| Mean Precipitation (in.) | 7.21 | 6.21 | 5.59 | 2.41 | 1.05 | 0.33 | 0.14 | 0.26 | 0.64 | 2.22 | 5.35 | 5.67 | 37.08 |
| Highest Precipitation (in.) | 18.93 | 21.68 | 19.65 | 5.65 | 5.91 | 1.51 | 2.53 | 2.15 | 2.66 | 5.88 | 18.15 | 15.02 | 21.68 |
| Year Highest Occurred | 1995 | 1998 | 1983 | 1983 | 1990 | 1993 | 1974 | 1976 | 1989 | 1982 | 1973 | 1981 | 1998 |
| Lowest Precipitation (in.) | 0.52 | 0.27 | 0.52 | 0.12 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.00 |
| Year Lowest Occurred | 1984 | 1995 | 1988 | 1981 | 1992 | 1983 | 2000 | 1998 | 1998 | 1995 | 1990 | 1989 | 1992 |
| Heating Degree Days (F) | 509. | 417. | 431. | 409. | 359. | 276. | 249. | 218. | 217. | 281. | 384. | 501. | 4251. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 0. | 0. | 0. | 1. | 4. | 1. | 0. | 0. | 6. |