The Purdy 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.
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81° on Nov. 17, 2016, the hottest reading for this week of the year since 1972. Next is 81° in 2022.
Purdy’s center stands about 1,480 ft above sea level. Within three miles the land runs from 1,330 ft to 1,540 ft, a difference of 210 ft: rolling country.
Under the town center the state geologic map shows Osagean Series (limestone), from the Carboniferous, 324 to 359 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 48×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 23 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million 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 Purdy reaches the Gulf of America by way of Flat Creek, the White River and the Mississippi: about 1,220 river miles.
Lake on the way: Table Rock Lake.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Purdy; river miles along the main stem, rounded.
Purdy has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 24° in January. A normal year brings about 7 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 Purdy normally reaches 58° and falls to 37°. The record high is 80°, in 1999; the record low 12°, in 2018. The most rain on this date, 0.89 in, fell in 1978.
Normals 1991–2020 and records since 1972 at Monett 4 SW, 4 miles northwest. NOAA, through RCC-ACIS.
