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Excessive Heat in San Bernardino and Riverside County Valleys - the Inland Empire, California
Excessive Heat September 3, 2024 – September 10, 2024 · San Bernardino and Riverside County Valleys - the Inland Empire, California
What the National Weather Service wrote
Extreme heat started September 3 and continued through September 10, 2024. The hottest days were September 5 to 8, when high temperatures reached 105 to 114F across the entire Inland Empire. Despite scattered thunderstorms on September 7 and 8th, the high temperatures were still around 110F at many locations in the Inland Empire.
The wider storm
A heat wave developed starting Labor Day weekend and peaked the next weekend September 5 to 9, 2024. The hottest days included Ramona reaching 114, Santa Ana 113, and Anaheim an all-time record of 112.
Source: NOAA Storm Events Database, event 1219626. Narratives are written by the National Weather Service forecast office that issued the report.
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