The Garnet 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.
Sunny
Mostly sunny
Mostly sunny
Sunny
Mostly sunny
Chance of showers
Mostly sunny
23° on Nov. 17, 1964, the coldest reading for this week of the year since 1922. Next is 31° in 1950.
Garnet’s center stands about 830 ft above sea level. Within three miles the land runs from 570 ft to 1,390 ft, a difference of 820 ft: hilly country. The highest named summit within 15 miles is San Jacinto Peak, about 10,740 ft, 14 miles west-southwest.
Under the town center the state geologic map shows Quaternary alluvium and marine deposits (coarse-detrital), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 3×. 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 to Holocene, less than 2.6 million years old. About 10 mi of the line.
Gneiss. Age: Paleoproterozoic to Miocene, 5.3 to 2,500 million years old. About 7 mi of the line.
Tonalite. Age: Middle Jurassic to Late Cretaceous, 66 to 175 million years old. About 4 mi of the line.
Orthogneiss. Age: Paleoproterozoic to Miocene, 5.3 to 2,500 million years old. About 2 mi of the line.
Plutonic, gneiss. Age: Paleoproterozoic to Late Cretaceous, 66 to 2,500 million years old. About 1 mi of the line.
Granodiorite. Age: Permian to Tertiary, 2.6 to 260 million years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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.
A raindrop that lands in Garnet reaches Salton Sea by way of Morongo Wash and the Whitewater: about 45 river miles. Salton Sea has no outlet to the sea: the water leaves only by evaporating or soaking into the ground.
Often dry. About 30% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Garnet; river miles along the main stem, rounded.
Garnet has a hot desert climate. Summer afternoons average 109° in July; winter nights fall to about 46° in December. About 5 inches of rain fall in a normal year.
On November 14 Garnet normally reaches 79° and falls to 54°. The record high is 93°, in 2021; the record low 31°, in 1964. The most rain on this date, 0.50 in, fell in 1946.
Normals 1991–2020 and records since 1922 from the Palm Springs Area threaded record (Palm Springs, 6 miles south-southwest, 400 ft lower). NOAA, through RCC-ACIS.
