The Jacksboro 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.
90° on Nov. 16, 2025, the hottest reading for this week of the year since 1941. Next is 87° in 1955.
Jacksboro’s center stands about 1,080 ft above sea level. Within three miles the land runs from 980 ft to 1,200 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is Tettertiller Hill, about 1,290 ft, 10 miles south.
Under the town center the state geologic map shows Thrifty and Graham Formations, undivided (black-shale), from the Carboniferous, 299 to 324 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 41×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Black-shale. Age: Carboniferous, 299 to 324 million years old. About 13 mi of the line.
Black-shale, limestone. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 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 Jacksboro reaches Galveston Bay and the Gulf of America by way of Lost Creek, the West Fork Trinity and the Trinity: about 620 river miles.
Lakes on the way: Woodlands Golf Course Lake, Lake Bridgeport, Eagle Mountain Lake and Lake Worth.
270 miles of the trip are on the Trinity.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Jacksboro; river miles along the main stem, rounded.
Jacksboro has a humid subtropical climate. Summer afternoons average 96° in July; winter nights fall to about 29° in January. About 33 inches of rain fall in a normal year.
On November 14 Jacksboro normally reaches 66° and falls to 41°. The record high is 87°, in 1960; the record low 15°, in 2018. The most rain on this date, 1.48 in, fell in 1991.
Normals 1991–2020 and records since 1941 at Jacksboro, here. NOAA, through RCC-ACIS.