The Pymatuning South 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
Chance of showers
Mostly cloudy
Partly cloudy
Mostly sunny
Partly cloudy
Partly cloudy
77° on Nov. 13, 1949, the hottest reading for this week of the year since 1931. Next is 77° in 2020.
Pymatuning South’s center stands about 1,050 ft above sea level. Within three miles the land runs from 1,000 ft to 1,360 ft, a difference of 360 ft: rolling country. The highest named summit within 15 miles is Wheeler Hill, about 1,410 ft, 11 miles southeast.
Under the town center the state geologic map shows Berea Sandstone through Venango Formation, undivided (shale), from the Late Devonian, 359 to 384 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 39×. 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. Age: Late Devonian, 359 to 384 million years old. About 5 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 5 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 million years old. About 4 mi of the line.
Sandstone, shale. Age: Devonian, 359 to 422 million years old. About 3 mi of the line.
Siltstone, shale. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Sandstone, conglomerate. 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. 1 smaller unit along the line are not listed.
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 Pymatuning South reaches the Gulf of America by way of the Pymatuning Swamp (historical), the Shenango, the Beaver, the Ohio and the Mississippi: about 2,010 river miles.
Lake on the way: Pymatuning Swamp (historical).
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Pymatuning South; river miles along the main stem, rounded.
Pymatuning South has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 16° in January. A normal year brings about 62 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Pymatuning South normally reaches 50° and falls to 32°. The record high is 70°, in 1989; the record low 13°, in 1933. The most rain on this date, 1.22 in, fell in 1972.
Normals 1991–2020 and records since 1931 at Jamestown 2 NW, here. NOAA, through RCC-ACIS.
