The Southampton 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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77° on Nov. 15, 1973, the hottest reading for this week of the year since 1910. Next is 75° in 1993.
Southampton’s center stands about 770 ft above sea level. Within three miles the land runs from 620 ft to 940 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Clarks Knob, about 2,340 ft, 11 miles west.
The section below crosses 13 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 13×. 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: Ordovician, 445 to 487 million years old. About 9 mi of the line.
Quartzite. Age: Cambrian, 487 to 542 million years old. About 4 mi of the line.
Quartzite. Age: Cambrian, 487 to 542 million years old. About 2 mi of the line.
Limestone. Age: Cambrian, 487 to 542 million years old. About 2 mi of the line.
Age: Precambrian. About 2 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 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. 7 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 Southampton reaches Chesapeake Bay and the Atlantic Ocean by way of Middle Spring Creek, Conodoguinet Creek and the Susquehanna: about 150 river miles.
Lake on the way: Lake Aldred.
70 miles of the trip are on Conodoguinet Creek.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Southampton; river miles along the main stem, rounded.
Southampton has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 22° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 42 inches of water.
On November 14 Southampton normally reaches 54° and falls to 34°. The record high is 73°, in 1989; the record low 14°, in 1986. The most rain on this date, 1.88 in, fell in 1995.
Normals 1991–2020 and records since 1910 at Shippensburg, 3 miles north-northeast. NOAA, through RCC-ACIS.
