The Malvern 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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87° on Nov. 11, 2020, the hottest reading for this week of the year since 1965. Next is 85° in 2011.
Malvern’s center stands about 310 ft above sea level. Within three miles the land runs from 240 ft to 330 ft, a difference of 90 ft: gently rolling country.
Under the town center the state geologic map shows Claiborne/Jackson Group; Residuum (clay), from the Eocene to Miocene, 5.3 to 56 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 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.
Clay. Age: Eocene to Miocene, 5.3 to 56 million years old. About 19 mi of the line.
Sand. Age: Eocene, 34 to 56 million years old. About 2 mi of the line.
Sand. Age: Late Pliocene, 2.6 to 3.6 million years old. About 1 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 0.4 mi of the line.
Claystone. Age: Eocene, 34 to 56 million years old. About 0.4 mi of the line.
Sand, clay. Age: Middle Miocene to Early Pliocene, 3.6 to 16 million years old. About 0.3 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 Malvern reaches Choctawhatchee Bay and the Gulf of America by way of Newton Creek, the Little Choctawhatchee and the Choctawhatchee: about 140 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Malvern; river miles along the main stem, rounded.
Malvern has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 40° in January. About 54 inches of rain fall in a normal year.
On November 14 Malvern normally reaches 72° and falls to 47°. The record high is 83°, in 2008; the record low 30°, in 1969. The most rain on this date, 0.69 in, fell in 2018.
Normals 1991–2020 and records since 1965 at Dothan Regional Airport, 13 miles north-northeast. NOAA, through RCC-ACIS.
