Harmon is located in Illinois. Harmon, Illinois has a population of 87. Harmon is less family-centric than the surrounding county with 15% of the households containing married families with children. The county average for households married with children is 27.63%.
The median household income in Harmon, Illinois is $45,625. The median household income for the surrounding county is $62,250 compared to the national median of $69,021. The median age of people living in Harmon is 48.7 years.
The average high temperature in July is 83.7 degrees, with an average low temperature in January of 13 degrees. The average rainfall is approximately 37.3 inches per year, with 29.4 inches of snow per year.