The Caldwell 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.
Partly cloudy
Showers likely; cooler
Chance of showers
Sunny; warmer
Partly cloudy
Partly cloudy
Partly cloudy
3.41 inches of rain fell in two days, the most for this week of the year since records began in 1882. The next wettest, 3.40 inches, fell in 1998.
Caldwell’s center stands about 400 ft above sea level. Within three miles the land runs from 310 ft to 450 ft, a difference of 140 ft: gently rolling country.
Under the town center the state geologic map shows Cook Mountain Formation (claystone, sandstone), from the Eocene, 34 to 56 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 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Claystone, sandstone. Age: Eocene, 34 to 56 million years old. About 8 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 5 mi of the line.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 4 mi of the line.
Claystone, sandstone. Age: Eocene, 34 to 56 million years old. About 4 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Sandstone. Age: Middle Eocene, 38 to 48 million years old. About 0.9 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 Caldwell reaches the Gulf of America by way of Davidson Creek, Old Yegua Creek, Yegua Creek and the Brazos: about 290 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Caldwell; river miles along the main stem, rounded.
Caldwell has a humid subtropical climate. Summer afternoons average 97° in August; winter nights fall to about 41° in January. About 42 inches of rain fall in a normal year.
On November 14 Caldwell normally reaches 71° and falls to 50°. The record high is 94°, in 1921; the record low 27°, in 1940. The most rain on this date, 1.64 in, fell in 1998.
Normals 1991–2020 and records since 1882 from the College Station Area threaded record (College Station Easterwood Field, 20 miles east-northeast). NOAA, through RCC-ACIS.
