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 60F and high of 85F. On average, Mercersburg gets about 4.08 inches of precipitation in August. Most residents are home owners (52%), have a high school diploma (47%) and are single, no kids (43%).
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