The Coleman 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.
Chance of showers
Showers likely
Mostly cloudy; cooler
Partly cloudy
Partly cloudy
Partly cloudy
Partly cloudy
3.06 inches of rain fell in two days, the most for this week of the year since records began in 1894. The next wettest, 2.95 inches, fell in 2001.
Coleman’s center stands about 1,700 ft above sea level. Within three miles the land runs from 1,640 ft to 1,840 ft, a difference of 200 ft: gently rolling country. The highest named summit within 15 miles is Robinson Peak, about 2,070 ft, 9 miles northwest.
The section below crosses 12 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 32×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone-mudstone. Age: Permian, 252 to 299 million years old. About 4 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Claystone. Age: Permian, 252 to 299 million years old. About 3 mi of the line.
Limestone. Age: Early Cretaceous, 100 to 113 million years old. About 3 mi of the line.
Sandstone, claystone. Age: Early Cretaceous, 100 to 145 million years old. About 2 mi of the line.
Shale. Age: Permian, 252 to 299 million years old. 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. 6 smaller units 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 Coleman reaches the Gulf of America by way of Hords Creek, Jim Ned Creek, Pecan Bayou and the Colorado: about 600 river miles.
Lakes on the way: Buchanan Lake, Lake Marble Falls, Brownwood Lake and Lake Lyndon B Johnson.
320 miles of the trip are on the Colorado.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Coleman; river miles along the main stem, rounded.
Coleman has a humid subtropical climate. Summer afternoons average 97° in July; winter nights fall to about 35° in January. About 28 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Coleman normally reaches 69° and falls to 44°. The record high is 87°, in 1989; the record low 16°, in 1916. The most rain on this date, 1.79 in, fell in 1954.
Normals 1991–2020 and records since 1894 at Coleman, here. NOAA, through RCC-ACIS.
