Record Heat in Washington, D.C.: 99F on June 21, 2012
June 21, 2012: Hottest Day in Washington, D.C. History
Washington D.C. has set a new summer benchmark. On June 21, 2012, the temperature in D.C. hit 99F (37C), a record high.
- National Weather Service: Excessive Heat Warning for Washington, D.C.
- How to Avoid Heat Stroke
- ASPCA: Hot-Weather Tips for Your Pet
New York City's temperature record was broken on June 20, the first day of summer, when the thermometer reached 98F. Power outages and brownouts have struck the East Coast as electricity-hungry air conditioners are switched on en masse.
Every state in the Lower 48 except for North Dakota was forecast to have 90-degree weather until Saturday, according to a model by the National Oceanic and Atmospheric Administration, the agency in charge of weather, climate and oceans.
Exercise restraint if you're building a backyard water slide.