Los angeles weather june 20221/12/2024 In that year, a stronger-than-usual upper-level ridge was directly overhead, generating excessive heat. “You could say we’re overdue, but that does not influence the outlook since we remain in a La Niña pattern like a year ago,” he said.īack-to-back La Niñas might be responsible for the active Southwest monsoon forecast, but we were in a La Niña in 2020, and that was a poor monsoon year, said Alex Tardy, a meteorologist with the weather service in San Diego. Last season the thunderstorm activity remained mostly over Arizona and eastward. But there has been very little monsoon thunderstorm activity in the mountains over the last two or three summers, he said. The monsoon season can bring thunderstorms to the mountains around L.A., and that can mean lightning strikes. County and continues into September, he said. The season usually begins just after July 4 in L.A. “The monsoon season can bring higher humidity to Southern California, which can lead to more uncomfortable nights on the tail end of a significant heat wave,” said Eric Boldt, a meteorologist with the National Weather Service in Oxnard. Southern Arizona gets about 32% of normal yearly rainfall during the monsoon. In northern Arizona, 40% to 50% of annual rainfall occurs during the monsoon. But normal rainfall during the summer months in California is essentially none, given the Mediterranean climate.Ī bright spot in the outlook for the Desert Southwest includes above-normal prospects for an enhanced monsoon. Most of California falls in an area with equal chances of above, near-normal or below-normal rainfall. The precipitation outlook for the June-to-August period calls for below-normal rainfall from the Pacific Northwest into the Plains, including the Rockies and the upper Colorado River watershed. Major reservoirs statewide were at 76% of average levels this week, with the long, hot summer months still ahead. By April 1, the snowpack had dwindled to just 38% of average. It gradually melts during the spring and summer, feeding rivers and reservoirs, and supplying cities and farms. The snowpack in the Sierra usually serves as cold storage for a big portion of the state’s water supply. Warm days prematurely melted the snow that was stockpiled high in the mountains early in the season. 28, but then ended up with only five strong ones for the whole winter, making it the third straight water year with below-normal atmospheric river activity. The state kicked off the 2021-22 water year with an exceptional atmospheric river on Oct. The state averages seven strong atmospheric rivers during the October-to-September water year, according to the Center for Western Weather and Water Extremes at the Scripps Institution of Oceanography in San Diego. California’s precipitation typically comes in a handful of winter storms. This year, after an unusually wet December, California experienced the driest January, February and March on record - some of the very months when the state expects to get almost all of its precipitation. That’s not just because California’s Mediterranean climate means rain mostly falls during a few wet winter months, but because the state is in its third year of drought. What’s in store for the upcoming season of beach days and barbecues in Southern California? † One or more months during the season was missing data for five or more days.Memorial Day, the unofficial start of summer, is Monday. The "Normal" or average seasonal precipitation for this station, provided by the National Centers for Environmental Information, is 12.23 inches, based upon a 30-year average for seasons 1991 through 2020. * Average as calculated over all years of available rainfall data. See month-by-month numbers as season unfolds. ![]() NOTE: When most weather reporting sources cite weather in Los Angeles (without specifying where, exactly, in Los Angeles), these numbers are typically for the Downtown Los Angeles weather station (actually located on the USC campus).Īverage for seasons 1944 through 2022: 11.86 inches* Season (July 1-June 30) Average - Santa Fe Dam (San Gabriel Valley) Monthly Rainfall by Season - Los Angeles International Airport Wet day at Los Angeles International Airport. Overall Seasonal Average Los Angeles International Airport
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