The New Castle 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
Mostly sunny; warmer
Partly cloudy
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Mostly sunny
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74° on Nov. 11, 2020, the hottest reading for this week of the year since 1973. Next is 74° in 2022.
New Castle’s center stands about 16 ft above sea level. Within three miles the land runs from 0 ft to 120 ft, a difference of 120 ft: gently rolling country. Open water lies within three miles. The highest named summit within 15 miles is Mount Agamenticus, about 690 ft, 11 miles north.
Under the town center the state geologic map shows Rye Complex (schist, gneiss, quartzite), from the Neoproterozoic to Ordovician, 445 to 1,000 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metasandstone, phyllite. Age: Neoproterozoic to Silurian, 422 to 1,000 million years old. About 7 mi of the line.
Granite. Age: Devonian, 359 to 422 million years old. About 2 mi of the line.
Phyllite, quartzite. Age: Neoproterozoic to Silurian, 422 to 1,000 million years old. About 2 mi of the line.
Schist, gneiss, quartzite. Age: Neoproterozoic to Ordovician, 445 to 1,000 million years old. About 0.8 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.
New Castle has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 16° in January. A normal year brings about 65 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 New Castle normally reaches 49° and falls to 32°. The record high is 71°, in 1989; the record low 10°, in 1986. The most rain on this date, 1.90 in, fell in 2006.
Normals 1991–2020 and records since 1973 at Greenland, 7 miles west-southwest. NOAA, through RCC-ACIS.
