The Edgemoor 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.
Partly cloudy
Mostly sunny
Partly cloudy
Sunny
Partly cloudy
Mostly sunny
Mostly sunny
79° on Nov. 15, 1993, the hottest reading for this week of the year since 1931. Next is 75° in 1973.
Edgemoor’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 330 ft, a difference of 330 ft: rolling country. Open water lies within three miles. The highest named summit within 15 miles is Hunting Hill, about 510 ft, 15 miles north.
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 52×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, clay, silt. Age: Early Cretaceous, 100 to 145 million years old. About 6 mi of the line.
Gneiss. Age: Paleozoic, 252 to 542 million years old. About 3 mi of the line.
Gneiss. Age: Paleozoic, 252 to 542 million years old. About 3 mi of the line.
Granite. Age: Paleozoic, 252 to 542 million years old. About 2 mi of the line.
Age: Paleozoic, 252 to 542 million years old. About 2 mi of the line.
Gneiss. Age: Paleozoic, 252 to 542 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 Edgemoor reaches Delaware Bay and the Atlantic Ocean by way of Shellpot Creek and the Delaware: about 40 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Edgemoor; river miles along the main stem, rounded.
Edgemoor has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 24° in January. A normal year brings about 12 inches of snow; with the rain, that comes to about 50 inches of water.
On November 14 Edgemoor normally reaches 53° and falls to 37°. The record high is 73°, in 1993; the record low 21°, in 1986. The most rain on this date, 2.17 in, fell in 1972.
Normals 1991–2020 and records since 1931 at Wilmington Porter Res, 2 miles northwest, 250 ft higher. NOAA, through RCC-ACIS.
