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Record Heat Again Across the West

Sizzling temperatures scorched the West once again on Monday, with some parts of California setting their all-time warmest September temperatures on record.

Oxnard and Camarillo, California both set their all-time warmest September temperatures on record, with each location going well over 100° on Monday. Los Angeles (downtown 104°, LAX 101°) and San Francisco (93°) both went over at least 20° above their typical late-September high temperatures, though neither city set a record on Monday.
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San Diego hit 101° officially at its Lindbergh Field observation site, making it the warmest day there since September 15th, 2012.

The famous ‘Santa Ana winds’ were, as is typical during the fall months, for the onslaught of heat that culminated on Monday. Santa Ana winds bring warm, dry desert air that downslopes (warms) off the high terrain east of southern California. The relatively cool Pacific Ocean typically moderates temperatures along the coast, but the offshore Santa Ana winds often bring Los Angeles, San Francisco and other coastal locations along the West Coast their warmest weather, typically in the fall.

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The good news, at least for those not a big fan of the heat? Temperatures cool down considerably and quickly in the affected areas, with temperatures quickly plummeting down closer to seasonable averages by Wednesday and Thursday after warm, but likely not record-setting, weather on Tuesday.

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Stay with WeatherNation for the latest on the heat and the incoming wet season for drought-stricken California.

For WeatherNation: Meteorologist Chris Bianchi

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