 Average monthly temperatures in downtown Bethlehem average from 29.1 °F in January to 74.1 °F in July, while in Wind Gap they average from 27.0 °F in January to 71.7 °F in July.As of the 2010 census, the county was 81.0% White Non-Hispanic, 5.0% Black or African American, 0.2% Native American or Alaskan Native, 2.4% Asian, 0.0% Native Hawaiian, 2.2% were two or more races, and 3.8% were some other race.10.5% of the population were of Hispanic or Latino ancestry.