A US county map show the higher number of cooling degree days times older adult population in Arizona, California, Florida, and the Gulf and Atlantic Coast states, along with several counties across the South and Midwest.
Where large older populations often need air conditioning
Cooling degree days measure how hot a location is by counting each degree that the day's average temperature rises above 75.2°F. A day with an average temperature of 80.2°F would count as 5 cooling degree days. The map shows each county's population age 69 or older multiplied by its total number of cooling degree days over a year.
