The Agra 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
Showers likely; cooler
Chance of showers; warmer
Sunny
Partly cloudy
Mostly cloudy
Chance of showers
89° on Nov. 16, 2016, the hottest reading for this week of the year since 1893. Next is 88° in 1911.
Agra’s center stands about 1,030 ft above sea level. Within three miles the land runs from 900 ft to 1,060 ft, a difference of 160 ft: gently rolling country.
Under the town center the state geologic map shows Oscar Group (shale, sandstone, limestone), from the Carboniferous, 299 to 324 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 58×. 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, limestone. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Shale, limestone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Shale, sandstone, conglomerate. Age: Permian, 252 to 299 million years old. About 3 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Shale, sandstone, limestone. Age: Carboniferous, 299 to 324 million years old. About 1 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 Agra reaches the Gulf of America by way of West Beaver Creek, Dry Creek, the Deep Fork, the North Canadian, the Canadian, the Arkansas and the Mississippi: about 1,190 river miles.
Lakes on the way: Murray Lake and Ozark Lake.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Agra; river miles along the main stem, rounded.
Agra has a humid subtropical climate. Summer afternoons average 95° in July; winter nights fall to about 27° in January. About 33 inches of rain fall in a normal year.
On November 14 Agra normally reaches 63° and falls to 38°. The record high is 81°, in 2020; the record low 10°, in 1959. The most rain on this date, 2.50 in, fell in 1909.
Normals 1991–2020 and records since 1893 from the Stillwater Area threaded record (Stillwater Regional Airport, 22 miles north-northwest). NOAA, through RCC-ACIS.
