Petersham is located in Massachusetts. Petersham, Massachusetts has a population of 1,218. Petersham is less family-centric than the surrounding county with 21.84% of the households containing married families with children. The county average for households married with children is 31.91%.
The median household income in Petersham, Massachusetts is $65,529. The median household income for the surrounding county is $69,313 compared to the national median of $57,652. The median age of people living in Petersham is 51 years.
The average high temperature in July is 79.3 degrees, with an average low temperature in January of 11.7 degrees. The average rainfall is approximately 48.2 inches per year, with 55.7 inches of snow per year.
