The Hart 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.
Showers likely
Mostly cloudy
Mostly cloudy
Mostly cloudy
Mostly sunny; warmer
Partly cloudy
Partly cloudy
84° on Nov. 16, 2025, the hottest reading for this week of the year since 1947. Next is 83° in 1988.
Hart’s center stands about 3,670 ft above sea level. Within three miles the land runs from 3,610 ft to 3,700 ft, a difference of 90 ft: gently rolling country.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 59×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand. Age: Pleistocene, less than 2.6 million years old. About 21 mi of the line.
Sand. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 3 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 Hart reaches the Gulf of America by way of the White River, the Salt Fork Brazos and the Brazos: about 1,210 river miles.
Lakes on the way: Possum Kingdom Lake and Lake Granbury.
550 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hart; river miles along the main stem, rounded.
Hart has a cold semi-arid climate. Summer afternoons average 89° in July; winter nights fall to about 20° in January. A normal year brings about 6 inches of snow; with the rain, that comes to about 18 inches of water.
On November 14 Hart normally reaches 61° and falls to 30°. The record high is 82°, in 2025; the record low 13°, in 2014. The most rain on this date, 0.84 in, fell in 1958.
Normals 1991–2020 and records since 1947 at Hart, here. NOAA, through RCC-ACIS.
