Labor Day Heat Wave: These Are The Key Record-Breaking Temperatures For Summer 2022

Summer 2022 continues to burn through the record books—with nearly 1,500 places breaking daily high temperatures in the past 30 days—here’s a real-time tracker of the most noteworthy, daily record-breaking high temperatures in major U.S. cities so far, according to data from the National Weather Service.

June 10Phoenix reaches 113 degrees Fahrenheit.

June 14Chicago hits 100 degrees, breaking a daily record set on the same day in 1987.

June 15Atlanta hits 99 degrees.

June 21Oakland hits 98 degrees (breaks 1954 daily record high by seven degrees).

June 21San Francisco hits 98 degrees.

June 22Louisville reached 100 degrees.

July 8Memphis records 103 degrees.

July 9Dallas breaks the almost 70-year-old record when it reaches 107 degrees.

July 9Salt Lake City breaks an almost 30-year-old record at 104 degrees.

July 16St. Louis breaks its 1988 record when temperatures rise to 103 degrees.

July 19Oklahoma City breaks a 1966 record at 110 degrees.

July 24Philadelphia records 99 degrees.

July 24Boston breaks a 35-year-old record at 100 degrees.

July 24Newark, New Jersey reaches 102 degrees.

July 26Portland, Oregon reaches 102 degrees.

July 26Seattle hits 94 degrees as the city recorded six straight days with temperatures above 90 degrees, its longest streak recorded.

Aug. 4Boston breaks its 1928 record this afternoon at 97 degrees, according to multiple reports.

Aug. 4Manchester, New Hampshire hits 98 degrees, breaking a daily record set in 1935, while in Albany and Poughkeepsie, New York, the temperature reaches daily records of 99 degrees.

Aug. 6Providence, Rhode Island reaches 95 degrees.

Aug. 7Toledo, Ohio hits 95 degrees.

Aug. 7Anaheim, California breaks a daily record with the high temperature reaching 98 degrees.

Aug. 8New Haven, Connecticut hits 93 degrees.

Aug. 10Missoula, Montana sets a daily record high at 103 degrees, breaking a record that stood for 31 years.

Aug. 11Casper, Wyoming hits 101 degrees, breaking a record daily high.

Aug. 17Boise reaches 103 degrees.

Aug. 19Fort Lauderdale, Florida hits 95 degrees.

Aug. 20Stockton, California hits 105 degrees.

Aug. 20Worcester, Massachusetts reaches 90 degrees.

Aug. 23Lancaster, California sets a daily record high with the temperature climbing to 109 degrees, before breaking another record one week later when the temperature hit 112 degrees, shattering a daily record that stood for more than 70 years.

Aug. 30Portland, Oregon hits 97 degrees.

Aug. 30Seattle, Washington reaches 90 degrees.

Aug. 30Salt Lake City, Utah reaches 101 degrees.

Aug. 31Anaheim, California hits 106 degrees, breaking a previous high of 102 degrees set in 2007, and setting a new monthly record in the city for the month of August, according to the Los Angeles Times.

Aug. 31Boise, Idaho reaches 106 degrees.

Sept. 1Reno, Nevada hits 100 degrees, breaking a record that had been in place for 85 years.

Sept. 1Palmade, California hits 109 degrees, breaking a record set in 1947.

Sept. 2Reno, Nevada breaks another 85-year record when the temperature hit 102 degrees.

The Intergovernmental Panel on Climate Change (IPCC), a United Nations organization that researches and publishes on human-induced climate change, reported in its 2022 assessment report that many of the climate extremes of today—extreme heat, droughts, wildfires and heavy precipitation—are products of humans’ impact on climate change. Last year, the National Oceanic and Atmospheric Administration reported that 2021 tied with 1936 for the warmest summer on record. IPCC reports that climate hazards will only increase and limiting global warming would only reduce losses, not eliminate them.

An excessive heat warning remains in effect in parts of California until Thursday. Forecasters at the National Weather Service predict the sweltering temperatures could continue set new daily records in Los Angeles County and San Luis Obispo County, not only posing a threat to humans and pets, but potentially accelerating wildfires currently raging across the state.