The Farmersville 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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79° on Nov. 11, 2020, the hottest reading for this week of the year since 1923. Next is 75° in 1971.
Farmersville’s center stands about 870 ft above sea level. Within three miles the land runs from 760 ft to 950 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Grant Lake and Fairview Formations, Miamitown Shale, Undivided (shale, limestone), from the Late Ordovician, 445 to 459 million years old.
The section below crosses 6 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.
Shale, limestone. Age: Late Ordovician, 445 to 454 million years old. About 8 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 454 million years old. About 7 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 459 million years old. About 6 mi of the line.
Dolostone. Age: Silurian, 425 to 445 million years old. About 2 mi of the line.
Shale. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 0.9 mi of the line.
Dolostone, limestone, shale. Age: Silurian, 422 to 445 million years old. About 0.6 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 Farmersville reaches the Gulf of America by way of Little Twin Creek, Twin Creek, the Great Miami, the Ohio and the Mississippi: about 1,530 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Farmersville; river miles along the main stem, rounded.
Farmersville has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 20° in January. About 42 inches of rain fall in a normal year.
On November 14 Farmersville normally reaches 54° and falls to 32°. The record high is 72°, in 2011; the record low 10°, in 1986. The most rain on this date, 1.53 in, fell in 1972.
Normals 1991–2020 and records since 1923 at Franklin, 10 miles south-southeast, 190 ft lower. NOAA, through RCC-ACIS.
