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Past Water Year's Effect on the Antelope Valley

Where the Antelope Valley stands regarding precipitation statistics for the record from 1981 until now, based on information provided by the California Water watch program.

As of November 13th, the Antelope-Fremont Valleys’ watershed, in the South Lahontan Hydrologic Region, where the Antelope Valley-East Kern Water Agency provides supplemental imported water supplies, precipitation amounted to 1.25 inches, or 184% of the average for that date. That equated to 15% of average for the entire water year ending on September 30th. The historical record to date reached a maximum of 3.37 inches, the report on the California Department of Water Resources website noted.

Further weather statistics for that same period showed a mean temperature of 44.9 degrees Fahrenheit, equal to 87% of average. Historical data indicates the maximum temperature reached 62.9 degrees F with the minimum recorded at 33.1 degrees F, for a mean of 51.55 degrees F.

California Water Watch tracks the most current local and statewide water conditions, with information updated from multiple sources. Information gathered from the various sources acknowledges that the historic drought, entering its fourth year, continues in a detrimental manner.

The California Water Watch Home Page at https://cww.water.ca.gov shows a drone view of Castaic Lake, by the dam on Castaic Creek in the Sierra Pelona Mountains on September 13th, an indicator of how low the water level has dropped. Reservoir levels, such as Castaic Lake, were impaired for the past three years by a declining snowpack, the Water Watch website stated. California depends on the network of reservoirs during dry years.

“Climate change has fundamentally altered our state’s hydrologic system – intensifying extreme weather and leading to longer, drier periods,’ the Water Watch page stated, noting the need for everyone to use less water.

“We ended Water Year 2022 on September 30 following a year featuring continued extreme drought with historically dry months and a record-shattering heatwave,” the website added.

In 2022, the water year ended with a statewide precipitation average of 17.9 inches, equal to 76% of historical average. Reservoir storage statewide ended the water year at 14.70 million acre-feet, or 69% of historical average.

According to the Water Watch website, “A growing body of evidence is starting to show that our current drought is an extension of the 2012-2016 drought, interrupted by just a few wet years.”

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