The Landrum 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.
Mostly sunny
Mostly sunny; warmer
Sunny
Sunny
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Partly cloudy
Mostly sunny
4.76 inches of rain fell in two days, the most for this week of the year since records began in 1917. The next wettest, 4.34 inches, fell in 2020.
Landrum’s center stands about 1,030 ft above sea level. Within three miles the land runs from 830 ft to 1,320 ft, a difference of 490 ft: hilly country. The highest named summit within 15 miles is Hogback Mountain, about 3,230 ft, 6 miles west.
Under the town center the state geologic map shows Megacrystic biotite gneiss (biotite-gneiss), from the Neoproterozoic to Cambrian, 487 to 1,000 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 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Biotite-gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 10 mi of the line.
Gneiss. Age: Ordovician, 445 to 487 million years old. About 9 mi of the line.
Mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 4 mi of the line.
Biotite-gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 1 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 Landrum reaches the Atlantic Ocean by way of Page Creek, the North Pacolet, the Pacolet, the Broad, the Congaree, the Santee and the South Santee: about 330 river miles.
Lake on the way: Lib Pines Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Landrum; river miles along the main stem, rounded.
Landrum has a humid subtropical climate. Summer afternoons average 86° in July; winter nights fall to about 32° in January. About 64 inches of rain fall in a normal year, with about 5 inches of snow.
On November 14 Landrum normally reaches 61° and falls to 41°. The record high is 83°, in 1999; the record low 19°, in 2019. The most rain on this date, 1.81 in, fell in 1972.
Normals 1991–2020 and records since 1917 at Tryon, 4 miles west-northwest, 290 ft higher. NOAA, through RCC-ACIS.
