The red, that's hot! The map shows the rankings of the first 3 weeks of July. Dark red = 1st hottest, red = 2-5. No surprise here, there has been a very widespread and record long lasting heat dome sprawled out over the Southern US, with all kinds of record heat breached. 1/ pic.twitter.com/Yr4Ka1DYbt

— Jeff Berardelli (@WeatherProf) July 21, 2023