The New Hanover 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.
18° on Nov. 14, 2019, the coldest reading for this week of the year since 1993. Next is 20° in 1995.
New Hanover’s center stands about 140 ft above sea level. Within three miles the land runs from 70 ft to 180 ft, a difference of 110 ft: gently rolling country.
Under the town center the state geologic map shows Cohansey Formation (sand), from the Middle Miocene, 12 to 14 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Clay, sand. Age: Early Miocene, 16 to 23 million years old. About 14 mi of the line.
Sand. Age: Middle Miocene, 12 to 14 million years old. About 9 mi of the line.
Sand, marl. Age: Early Eocene, 48 to 56 million years old. About 0.7 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 New Hanover reaches Delaware Bay and the Atlantic Ocean by way of North Branch Rancocas Creek, Rancocas Creek and the Delaware: about 110 river miles.
80 miles of the trip are on the Delaware.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of New Hanover; river miles along the main stem, rounded.
New Hanover has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 23° in January. A normal year brings about 25 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 New Hanover normally reaches 54° and falls to 34°. The record high is 66°, in 2005; the record low 18°, in 2019. The most rain on this date, 0.85 in, fell in 2008.
Normals 1991–2020 and records since 1993 at Philadelphia/Mt. Holly Wfo, 13 miles west. NOAA, through RCC-ACIS.