The Summitville 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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7° on Nov. 16, 1933, the coldest reading for this week of the year since 1892. Next is 9° in 1986.
Summitville’s center stands about 1,190 ft above sea level. Within three miles the land runs from 1,020 ft to 1,290 ft, a difference of 270 ft: rolling country. The highest named summit within 15 miles is Round Knob, about 1,440 ft, 11 miles east.
Under the town center the state geologic map shows Conemaugh Group (shale, siltstone, mudstone), from the Carboniferous, 299 to 324 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 33×. 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, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 21 mi of the line.
Shale, siltstone. Age: Carboniferous, 299 to 324 million 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 Summitville reaches the Gulf of America by way of Brush Creek, West Fork Little Beaver Creek, Little Beaver Creek, the Ohio and the Mississippi: about 1,940 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Summitville; river miles along the main stem, rounded.
Summitville has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 21° in January. About 42 inches of rain fall in a normal year.
On November 14 Summitville normally reaches 52° and falls to 35°. The record high is 75°, in 1951; the record low 9°, in 1986. The most rain on this date, 0.73 in, fell in 1961.
Normals 1991–2020 and records since 1892 at New Cumberland L/D, 17 miles southeast, 520 ft lower. NOAA, through RCC-ACIS.
