The Greensboro 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.
18° on Nov. 11, 2025, the coldest reading for this week of the year since 1890. Next is 19° in 1969.
Greensboro’s center stands about 280 ft above sea level. Within three miles the land runs from 180 ft to 370 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Eutaw Formation (sand, clay), from the Cretaceous, 66 to 145 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 45×. 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: Cretaceous, 66 to 145 million years old. About 15 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 4 mi of the line.
Chalk, marl. Age: Cretaceous, 66 to 145 million years old. About 4 mi of the line.
Sand. Age: Pleistocene, less than 2.6 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.
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 Greensboro reaches Mobile Bay and the Gulf of America by way of Picks Creek, Little Prairie Creek, Big Prairie Creek, the Black Warrior, the Tombigbee and the Mobile: about 260 river miles.
170 miles of the trip are on the Tombigbee.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Greensboro; river miles along the main stem, rounded.
Greensboro has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 36° in January. About 55 inches of rain fall in a normal year.
On November 14 Greensboro normally reaches 66° and falls to 43°. The record high is 86°, in 1955; the record low 24°, in 1969. The most rain on this date, 2.05 in, fell in 1930.
Normals 1991–2020 and records since 1890 at Greensboro, here. NOAA, through RCC-ACIS.