The Richland Hills 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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87° on Nov. 15, 2025, the hottest reading for this week of the year since 1948. Next is 86° in 1999.
Richland Hills’s center stands about 570 ft above sea level. Within three miles the land runs from 480 ft to 630 ft, a difference of 150 ft: gently rolling country. The highest named summit within 15 miles is Blue Mound, about 840 ft, 12 miles northwest.
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 56×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Early Cretaceous, 100 to 145 million years old. About 6 mi of the line.
Claystone. Age: Early Cretaceous, 100 to 145 million years old. About 4 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 4 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Sandstone-mudstone. Age: Late Cretaceous, 66 to 100 million years old. About 4 mi of the line.
Black-shale, siltstone. Age: Late Cretaceous, 66 to 100 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.
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 Richland Hills reaches Galveston Bay and the Gulf of America by way of Big Fossil Creek, the West Fork Trinity and the Trinity: about 490 river miles.
Lake on the way: Woodlands Golf Course Lake.
270 miles of the trip are on the Trinity.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Richland Hills; river miles along the main stem, rounded.
Richland Hills has a humid subtropical climate. Summer afternoons average 94° in July; winter nights fall to about 36° in January. About 38 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Richland Hills normally reaches 66° and falls to 46°. The record high is 86°, in 1999; the record low 23°, in 2018. The most rain on this date, 1.80 in, fell in 1994.
Normals 1991–2020 and records since 1948 at Fort Worth Wsfo, 4 miles west-northwest. NOAA, through RCC-ACIS.
