Large swaths of the U.S. set daily temperature records

Almost 20 million people were under a heat advisory on Sunday afternoon, a number that fell to about 15.8 million by evening.

Here’s a rundown of the new temperature records for each calendar day that were set this weekend in parts of the Northeast and South, according to the data provided by the NWS on Sunday afternoon. These numbers are preliminary, the meteorologist added. While Sunday’s records could change by a degree or so by the end of the day, Chenard said, Saturday’s are unlikely to change much, if at all.

The records are a preview of what’s to come, as climate change is making extreme weather including heatwaves more frequent and intense.

May 21

Richmond, Va., hit 95 degrees, breaking its 1962 record by 2 degrees.

Austin, Texas, marked a new high of 100 degrees, up from 99 degrees in 1939.

San Antonio, Texas, reached 101 degrees, jumping from 98 degrees in 1939.

Victoria, Texas, saw a high of 97 degrees, compared to the day’s high of 96 degrees in 1939.

Vicksburg, Miss., reached 98 degrees to break its 1962 record by 4 degrees.

Georgetown, Del., hit 95 degrees, surpassing 94 degrees in 1996.

Hagerstown, Md., logged a 91-degree day, exceeding the 90-degree day in 1941.

Islip, N.Y., tied its 1996 record of 90 degrees.

Atlantic City, N.J., hit 93 degrees for the first time on that day since 1996.

Baton Rouge, La., tied its 1922 record at 95 degrees.

Philadelphia tied its 1934 record of 95 degrees.

Worcester, Mass., tied its 1975 record of 88 degrees.

Jackson, Ky., reached 86 degrees to tie its 2018 record.

The airport in Dulles, Va., hit 92 degrees, tying its 1996 mark.

May 22

The Dulles International Airport in Virginia reached 90 degrees, a degree higher than the record set on the same day last year.

Westfield, Mass., hit 92 degrees, which breaks the record set last year at 90 degrees.

Worcester, Mass., tied the record for 90 degrees, a mark set in 1992.

Tampa, Fla., hit 95 degrees, tying its 1975 record.