The Wellsville 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.
Mostly cloudy
Chance of showers
Mostly cloudy
Sunny
Sunny
Partly cloudy
Mostly sunny
7° on Nov. 16, 1933, the coldest reading for this week of the year since 1892. Next is 9° in 1986.
Wellsville’s center stands about 730 ft above sea level. Within three miles the land runs from 650 ft to 1,250 ft, a difference of 600 ft: hilly country. The highest named summit within 15 miles is Round Knob, about 1,440 ft, 5 miles north.
Under the town center the state geologic map shows Allegheny and Pottsville Groups, Undivided (shale, siltstone), from the Carboniferous, 299 to 324 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 28×. 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 11 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Shale, siltstone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Sandstone, siltstone, shale. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Shale, siltstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Fine-detrital, coarse-detrital. Age: Quaternary, less than 2.6 million years old. About 0.5 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 Wellsville reaches the Gulf of America by way of Little Yellow Creek, the Ohio and the Mississippi: about 1,900 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 Wellsville; river miles along the main stem, rounded.
Wellsville 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 Wellsville 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, 6 miles south-southeast. NOAA, through RCC-ACIS.
