The Niangua 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
Partly cloudy
Partly cloudy
Partly cloudy
Mostly sunny
4.21 inches of rain fell in two days, the most for this week of the year since records began in 1908. The next wettest, 3.65 inches, fell in 1985.
Niangua’s center stands about 1,420 ft above sea level. Within three miles the land runs from 1,220 ft to 1,480 ft, a difference of 260 ft: rolling country.
Under the town center the state geologic map shows Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite (dolostone), from the Early Ordovician, 471 to 487 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 34×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 19 mi of the line.
Sandstone, chert. Age: Early Ordovician, 471 to 487 million years old. About 3 mi of the line.
Limestone, siltstone. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 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 Niangua reaches the Gulf of America by way of Bowen Creek, the Osage Fork Gasconade, the Gasconade, the Missouri and the Mississippi: about 1,520 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 Niangua; river miles along the main stem, rounded.
Niangua has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 22° in January. A normal year brings about 5 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 Niangua normally reaches 56° and falls to 35°. The record high is 76°, in 1973; the record low 13°, in 2018. The most rain on this date, 1.15 in, fell in 1993.
Normals 1991–2020 and records since 1908 at Marshfield 4 WSW, 10 miles west-southwest. NOAA, through RCC-ACIS.
