The Oak Grove 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.
Chance of showers
Showers likely
Partly cloudy
Sunny
Mostly cloudy
Partly cloudy
Partly cloudy
20° on Nov. 12, 2019, the coldest reading for this week of the year since 1940. Next is 22° in 2014.
Oak Grove’s center stands about 420 ft above sea level. Within three miles the land runs from 360 ft to 450 ft, a difference of 90 ft: gently rolling country.
Under the town center the state geologic map shows Kemp clay and Corsicana Marl, undivided, from the Late Cretaceous, 66 to 72 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 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. Age: Late Cretaceous, 66 to 72 million years old. About 8 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 5 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Clay, sand. Age: Paleocene, 56 to 66 million years old. About 3 mi of the line.
Sandstone. Age: Late Cretaceous, 66 to 72 million years old. About 3 mi of the line.
Clay. Age: Paleocene, 56 to 66 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 Oak Grove reaches Galveston Bay and the Gulf of America by way of Prairie Branch, Big Cottonwood Creek, Kings Creek, Cedar Creek and the Trinity: about 380 river miles.
Lakes on the way: Woodlands Golf Course Lake and Cedar Creek Reservoir.
150 miles of the trip are on the Trinity.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Oak Grove; river miles along the main stem, rounded.
Oak Grove has a humid subtropical climate. Summer afternoons average 97° in August; winter nights fall to about 36° in January. About 41 inches of rain fall in a normal year.
On November 14 Oak Grove normally reaches 68° and falls to 45°. The record high is 89°, in 1989; the record low 25°, in 2018. The most rain on this date, 1.32 in, fell in 1994.
Normals 1991–2020 and records since 1940 at Ferris, 20 miles west. NOAA, through RCC-ACIS.
