Hamilton County, Indiana, receives an average of 42 inches of rainfall per year, which is higher than the national average of 38 inches. The National Centers for Environmental Information (NCEI), a sub-office of the National Oceanic and Atmospheric Administration (NOAA), provides monthly data on temperature indices, precipitation, drought, and days of heating and cooling degrees for climate divisions, states, multi-state regions and the U. S. USA from 1895 to the present.
Hamilton County has an average of 22 inches of precipitation per year. The BestPlaces Comfort Index for Hamilton County is 7.0 (10% 3Dbest), which means it's roughly average compared to other places in Indiana. Since 1900, Hamilton County has experienced a variety of climates that have impacted people, communities and geographical areas.
