The Comer 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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19° on Nov. 16, 1940, the coldest reading for this week of the year since 1857. Next is 20° in 1916.
Comer’s center stands about 700 ft above sea level. Within three miles the land runs from 560 ft to 770 ft, a difference of 210 ft: rolling country.
Under the town center the state geologic map shows Biotitic Gneiss / Mica Schist/ Amphibolite (amphibolite, biotite-gneiss, mica-schist), from the Precambrian to Paleozoic.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Amphibolite, biotite-gneiss, mica-schist. Age: Precambrian to Paleozoic. About 9 mi of the line.
Schist. Age: Precambrian to Paleozoic. About 5 mi of the line.
Granite. Age: Precambrian to Paleozoic. About 5 mi of the line.
Schist, gneiss, amphibolite. Age: Precambrian to Paleozoic. About 4 mi of the line.
Schist, gneiss. Age: Precambrian to Paleozoic. 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 Comer reaches the Atlantic Ocean by way of the South Fork Broad, the Broad and the Savannah: about 300 river miles.
250 miles of the trip are on the Savannah.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Comer; river miles along the main stem, rounded.
Comer has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 34° in January. About 49 inches of rain fall in a normal year.
On November 14 Comer normally reaches 65° and falls to 42°. The record high is 84°, in 1931; the record low 23°, in 2013. The most rain on this date, 1.10 in, fell in 1983.
Normals 1991–2020 and records since 1857 from the Athens Area threaded record (Athens Ben Epps Airport, 14 miles southwest). NOAA, through RCC-ACIS.
