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.
Partly cloudy
Partly cloudy; warmer
Sunny
Sunny
Partly cloudy
Partly cloudy
Chance of showers
8° on Nov. 12, 2019, the coldest reading for this week of the year since 1995. Next is 12° in 2014.
Oak Grove’s center stands about 870 ft above sea level. Within three miles the land runs from 740 ft to 1,010 ft, a difference of 270 ft: rolling country.
Under the town center the state geologic map shows Pleasanton Group (shale, sandstone), from the Carboniferous, 299 to 324 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 54×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Clay, silt, sand. Age: Holocene, less than 12,000 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 Oak Grove reaches the Gulf of America by way of Sni-A-Bar Creek, the Missouri and the Mississippi: about 1,510 river miles.
1,170 miles of the trip are on the Mississippi.
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 hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 21° in January. A normal year brings about 17 inches of snow; with the rain, that comes to about 43 inches of water.
On November 14 Oak Grove normally reaches 55° and falls to 35°. The record high is 80°, in 1999; the record low 12°, in 2014. The most rain on this date, 0.45 in, fell in 2020.
Normals 1991–2020 and records since 1995 at Pleasant Hill Wfo, 15 miles south-southwest, 130 ft higher. NOAA, through RCC-ACIS.
