The Upper Paxton 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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3.89 inches of rain fell in two days, the most for this week of the year since records began in 1893. The next wettest, 2.87 inches, fell in 1935.
Upper Paxton’s center stands about 600 ft above sea level. Within three miles the land runs from 360 ft to 1,220 ft, a difference of 860 ft: hilly country. The highest named summit within 15 miles is Broad Mountain, about 1,790 ft, 9 miles east-southeast.
Under the town center the state geologic map shows Mauch Chunk Formation (shale, siltstone, sandstone), from the Carboniferous, 324 to 359 million years old.
The section below crosses 10 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 14×. 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, sandstone. Age: Carboniferous, 324 to 359 million years old. About 7 mi of the line.
Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Sandstone, siltstone. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Black-shale. Age: Early Devonian to Middle Devonian, 384 to 422 million years old. About 2 mi of the line.
Siltstone. Age: Late Devonian, 359 to 384 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. 4 smaller units 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 Upper Paxton reaches Chesapeake Bay and the Atlantic Ocean by way of Little Wiconisco Creek and the Susquehanna: about 110 river miles.
Lake on the way: Lake Aldred.
55 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Upper Paxton; river miles along the main stem, rounded.
Upper Paxton has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 19° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 43 inches of water.
On November 14 Upper Paxton normally reaches 52° and falls to 32°. The record high is 68°, in 1902; the record low 14°, in 1920. The most rain on this date, 0.69 in, fell in 1988.
Normals 1991–2020 and records since 1893 at Selinsgrove Penn Valley Airport, 17 miles north, 160 ft lower. NOAA, through RCC-ACIS.
