Northampton County Weather & Geography
The Lehigh Valley's principal cities are Allentown, Bethlehem, and Easton, comprising the Allentown-Bethlehem-Easton metropolitan area. It had served as a major U.S. center of industrial manufacturing since the 1800s but this role has diminished significantly in the 21st century as companies have moved to off-shore locations for these activities Recent census studies show it to be the fastest growing region in Pennsylvania, due in part to its growing popularity as a bedroom community for the highly-populated neighboring regions of Philadelphia, New Jersey and New York City as well as its favorable business climate and much lower cost of living in comparison to surrounding areas. The Lehigh Valley is geologically and geographically part of the Great Appalachian Valley, a region largely made up of limestone that stretches along the eastern edge of the Appalachian Mountains. The Lehigh Valley is so named because it is composed of an actual valley that lies between two mountain ranges, Blue Mountain to the north and South Mountain to the south. Lehigh Valley also is considered part of the historic Pennsylvania Dutch Country.
Climate in Northampton County, PA.