Storage Levels Hydrology Weather

California Santa Margarita Watershed

Diamond Valley

June 6 2023

575,087 acre-ft

+0.21% today
92% of Normal Normal

Water storage levels at Diamond Valley are currently 575,087 acre-ft, about 92% of normal. The average for this time of year is approximately 626,587.58acre-ft.

Maximum recorded Storage since record keeping began in 2003 was 2006-05-29 when levels reached 809,458 acre-ft. Lowest recorded Storage was 2016-03-20 when levels receded to 299,638 acre-ft.

Diamond Valley Lake in California was created in 1999, and is the largest reservoir in Southern California. The lake is primarily used for municipal drinking water, but it also provides recreational opportunities, such as fishing and boating. The hydrology of the lake is largely dependent on surface flow and snowpack from the San Jacinto Mountains. The lake is managed by the Metropolitan Water District of Southern California, who also operate the Robert B. Diemer Water Treatment Plant. Surrounding the lake is the Diamond Valley Lake Marina, a recreational area that offers fishing, boating, and hiking. In addition, a portion of the surrounding land is used for agricultural purposes, with crops such as grapes and citrus being grown in the area. Overall, Diamond Valley Lake plays a significant role in providing water and recreational opportunities for Southern California.

Geolocation -117.066, 33.670
Elevation 1,756 ft
Storage 24hr Change 0.21%
Percent of Normal 92%
Minimum 299,638 acre-ft
Maximum 809,458 acre-ft
Average 626,588 acre-ft
Nearby Reservoirs
Lake Hodges
Olivenhain Reservoir
Vail Lk Nr Temecula Ca
Lake Hemet
Diamond Valley
Railroad Canyon
Sutherland Reservoir
Vail Lake


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