Big Arm is located in Montana. Big Arm, Montana has a population of 242. Big Arm is more family-centric than the surrounding county with 29.47% of the households containing married families with children. The county average for households married with children is 26.91%.
The median household income for the surrounding county is $42,582 compared to the national median of $57,652. The median age of people living in Big Arm is 63.2 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 22.3 degrees. The average rainfall is approximately 20.5 inches per year, with 31.8 inches of snow per year.
