The Warrenville 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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4.23 inches of rain fell in two days, the most for this week of the year since records began in 1893. The next wettest, 3.75 inches, fell in 1992.
Warrenville’s center stands about 360 ft above sea level. Within three miles the land runs from 170 ft to 520 ft, a difference of 350 ft: rolling country.
Under the town center the state geologic map shows Black Creek/Cusseta/Blufftown Formations (sand), from the Cretaceous, 66 to 145 million years old.
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 42×. 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. Age: Cretaceous, 66 to 145 million years old. About 14 mi of the line.
Clay, sand. Age: Eocene, 34 to 56 million years old. About 8 mi of the line.
Sand. Age: Late Cretaceous, 66 to 72 million years old. About 1 mi of the line.
Fine-detrital. Age: Quaternary, less than 2.6 million years old. About 0.8 mi of the line.
Sand, gravel. Age: Holocene, less than 12,000 years old. About 0.4 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 Warrenville reaches the Atlantic Ocean by way of the Sand River, Horse Creek and the Savannah: about 210 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Warrenville; river miles along the main stem, rounded.
Warrenville has a cold desert climate. Summer afternoons average 94° in July; winter nights fall to about 32° in January. Barely 0.0 inches of rain fall in a normal year.
On November 14 Warrenville normally reaches 67° and falls to 41°. The record high is 84°, in 1993; the record low 20°, in 1987. The most rain on this date, 1.10 in, fell in 1983.
Normals 1991–2020 and records since 1893 from the Aiken Area threaded record (Aiken 2 E, 6 miles east, 150 ft higher). NOAA, through RCC-ACIS.
