The Manhattan Beach plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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94° on Nov. 12, 1974, the hottest reading for this week of the year since 1944. Next is 93° in 2019.
Manhattan Beach’s center stands about 70 ft above sea level. Within three miles the land runs from 0 ft to 200 ft, a difference of 200 ft: gently rolling country. Open water lies within three miles. The highest named summit within 15 miles is San Pedro Hill, about 1,480 ft, 10 miles south-southeast.
Under the town center the state geologic map shows Older Quaternary alluvium and marine deposits (coarse-detrital), from the Pleistocene, less than 2.6 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 41×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 10 mi of the line.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
Sandstone, mudstone. Age: Miocene to Pleistocene, less than 23 million years old. About 0.6 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
Manhattan Beach has a cold semi-arid climate. Summer afternoons average 77° in August; winter nights fall to about 49° in December. About 12 inches of rain fall in a normal year.
On November 14 Manhattan Beach normally reaches 71° and falls to 54°. The record high is 90°, in 2013; the record low 43°, in 2000. The most rain on this date, 1.27 in, fell in 1972.
Normals 1991–2020 and records since 1944 from the Los Angeles Airport Area threaded record (Los Angeles International Airport, 4 miles north-northeast). NOAA, through RCC-ACIS.
