Temperatures Delivered by Evaporative Coolers
When temperatures are high and humidity is low, evaporative coolers can lower temperatures by as much as 20, 30 or even 40 degrees Fahrenheit. But when the humidity is high, an evaporative cooler can't effectively cool you off.
Check your average summertime temperatures and relative humidity on this chart to discover if evaporative cooling will provide effective relief from the heat in your region.
Learn more about how evaporative coolers work by clicking here.