Mercersburg is located in Franklin County, Pennsylvania. There are roughly 1,578 residents, living in 673 households. The average temperature for Mercersburg this time of the year is low of 58F and high of 82F. On average, Mercersburg gets about 4.08 inches of precipitation in June. Most residents are home owners (52%), have a high school diploma (47%) and are single, no kids (43%).
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