Los Angeles, Santa Barbara, Riverside and Riverside counties will record record-breaking temperatures in September

Southern California braces for another September heat wave as early temperatures soar to record levels.

The scorching heat will be a big factor in this upcoming year, with temperatures set to be the highest on record for September, according to NOAA’s Climate Prediction Center.

Los Angeles, San Diego and Riverside are expected to become record-setters in one month.

And the heat will be a boon to the region’s water management system, as some of the most water-intensive agricultural regions in the U.S. face a water shortage.

On the list: Orange County will record a third consecutive warm day of 95 degrees as early as Sunday.

Orange County will join Ventura and Santa Barbara in reaching the 95 degrees mark, the National Weather Service said.

The area is already facing its second-coldest September so far.

“It’s going to be a long and hard summer,” Orange County Fire Chief Jerry Pfeifer said Monday. “A lot depends on the El Niño and weather.”

The National Weather Service issued heat warnings for the San Diego, San Bernardino, Riverside, Merced, San Bernadino, Ventura, San Bernardino, Imperial, San Diego counties and Santa Barbara County on Monday, following an 88-degree day on Friday, which was the third straight day a temperature was above 95 degrees in Southern California.

The temperature may rise as high as 102 degrees Monday, while temperatures are expected to dip to near 90 degrees by then, according to the National Weather Service.

“The heat is going to stay with us pretty good,” said Steve Braddock, a meteorologist with the NWS’s Los Angeles office.

Last month, Los Angeles and San Diego each broke more than a century-old records for high temperatures, which had not been reached during the previous two months in all of the region.

The combination of warm ocean temperatures and a weak El Niño expected to keep the Pacific Northwest warm during the rest of the year has sent temperatures soaring across the state. The National Weather Service issued heat warnings for the first time on Thursday for the Los Angeles, Santa Barbara, Ventura, San Bernardino, Orange, Riverside and San Diego counties.

The heat, however, could make life a bit more difficult for water managers: As temperatures rise, farmers are expected to increase irrigation for crops like almonds, pistachios, figs, grapes and citrus fruit, according to the U.S. Department of Agriculture

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