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is a city in Lehigh and Northampton Counties in the Lehigh Valley region of eastern Pennsylvania, in the United States. As of the 2000 census, the city had a total population of 71,329 (2007 estimate 72,531), making it the sixth largest city in Pennsylvania, after Philadelphia, Pittsburgh, Allentown, Erie, and Reading.
that is home to more than 750,000 people. The Valley embraces a trio of cities (Bethlehem, Allentown and Easton) within two counties (Lehigh and Northampton), making it Pennsylvania's third-largest metropolitan area. Smaller than Allentown but larger than Easton, Bethlehem is the Lehigh Valley's second most populous city.
There are three general sections of the city, North Bethlehem, South Bethlehem and West Bethlehem. Each of these sections blossomed at different times in the city's development and each contains areas recognized under the National Register of Historic Places.
magazine included Bethlehem as one of its "Top 100 Best Places to Live." It placed number 88.
Bethlehem's climate is falls in the humid continental climate zone. Summers are typically hot and humid, fall and spring are generally mild, and winter is cold. Precipitation is distributed throughout the year, with thunderstorms in the summer, showers in spring and fall, and snow in winter.
The average high temperature varies widely, from in January to in July. The highest recorded temperature was , while the lowest recorded temperature was .