San Francisco, CA Hit 100ºF Yesterday | Highest June Temperature in More Than a Century

WeatherBrains | | WeatherWeather
San Francisco, record temperature, heatwave
The mercury touched 100º in SF yesterday. Credit: Jose Rago | Unsplash

San Francisco International Airport yesterday reached its highest temperature ever recorded in the month of June: 100 degrees. In fact, this was the highest temperature ever measured at the airport in June, July or August. 100-degree readings don’t usually hit until September. With records going back to the Gold Rush, this beats the previous same-day high of 88 degrees hit on June 10th in 1985.

Dozens of other records were also smashed in Southern California, where Thermal reached 113 degrees and Stockton tied a record at 105 degrees. Heat warnings and advisories have been issued from Arizona to Washington for Tuesday.

San Francisco, california, heatwave, record temperatures
Credit: ABC News

Meteorologists say the winds are in an unusual pattern. The sea breeze that usually acts as natural air-conditioning, coastal areas are usually 10 to even 20 degrees cooler, calmed over the weekend and remains nonexistent. Meanwhile, an offshore wind has kicked up is blowing the hot inland air toward the coast.

“We’ve got a very warm air mass in place and the kicker was the overnight lows,” they explain. “We had high clouds move in over us right after the peak heating on Sunday and it trapped all that air in place. This morning San Francisco saw a low of 72 degreess and it just jump started the temperature climb today.”

Meteorologists initially predicted a cooling by Tuesday, but the latest forecast shows a drop in temperatures isn’t likely to occur until Wednesday.

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