The Adams Run 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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86° on Nov. 11, 1946, the hottest reading for this week of the year since 1937. Next is 85° in 1958.
Adams Run’s center stands about 70 ft above sea level. Within three miles the land runs from 0 ft to 100 ft, a difference of 100 ft: gently rolling country.
Under the town center the state geologic map shows Socastee Formation (sand, clay), from the Quaternary, less than 2.6 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, clay. Age: Quaternary, less than 2.6 million years old. About 11 mi of the line.
Peat. Age: Quaternary, less than 2.6 million years old. About 7 mi of the line.
Unconsolidated. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Peat. Age: Quaternary, less than 2.6 million years old. About 2 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.
A raindrop that lands in Adams Run reaches the Atlantic Ocean by way of Adams Run, Penny Creek, the Edisto and the North Edisto: about 30 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Adams Run; river miles along the main stem, rounded.
Adams Run has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 39° in January. About 52 inches of rain fall in a normal year.
On November 14 Adams Run normally reaches 70° and falls to 47°. The record high is 82°, in 1993; the record low 27°, in 1981. The most rain on this date, 0.57 in, fell in 1957.
Normals 1991–2020 and records since 1937 from the Charleston Area threaded record (Charleston Intl. Airport, 22 miles northeast). NOAA, through RCC-ACIS.
