The Brenham 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
Chance of showers
Mostly sunny; warmer
Mostly cloudy
Partly cloudy
Partly cloudy
97° on Nov. 15, 2025, the hottest reading for this week of the year since 1897. Next is 94° in 1927.
Brenham’s center stands about 340 ft above sea level. Within three miles the land runs from 210 ft to 410 ft, a difference of 200 ft: gently rolling country.
Under the town center the state geologic map shows Fleming Formation (clay, sandstone), from the Miocene, 5.3 to 23 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Clay, sandstone. Age: Miocene, 5.3 to 23 million years old. About 16 mi of the line.
Sandstone, clay. Age: Miocene, 5.3 to 23 million years old. About 7 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 1 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 Brenham reaches the Gulf of America by way of Hog Branch, New Year Creek and the Brazos: about 220 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Brenham; river miles along the main stem, rounded.
Brenham has a humid subtropical climate. Summer afternoons average 95° in August; winter nights fall to about 39° in January. About 48 inches of rain fall in a normal year.
On November 14 Brenham normally reaches 70° and falls to 48°. The record high is 91°, in 1921; the record low 26°, in 1940. The most rain on this date, 1.35 in, fell in 1920.
Normals 1991–2020 and records since 1897 at Brenham, here. NOAA, through RCC-ACIS.
