From Hot Nights To Dusty Days

Above: red indicates weather stations where U.S. Daily Highest Min Temperature Records were set on July 21, 2011 Image credit:NOAA
In Matt's recent post on hot weather he reported that June Record High Temperatures Beat Record Lows 11-to-1 in US.
Yesterday, the 21st of July, it was hotter than hell across much of the Eastern US.
Nights, which tend to have the daily minimum, were especially unpleasant. Out of 5,569 daily minimums recorded on the 21st, 188 broke previous records and another 138 tied them (exceeding or equaling, respectively, the previous record for daily minimum temperature).

Article continues: From Hot Nights To Dusty Days - Broken Weather Records Are The New Normal