The Pearl River 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.
77° on Nov. 15, 1993, the hottest reading for this week of the year since 1969. Next is 76° in 1973.
Pearl River’s center stands about 250 ft above sea level. Within three miles the land runs from 50 ft to 510 ft, a difference of 460 ft: hilly country. The highest named summit within 15 miles is Fingerboard Mountain, about 1,380 ft, 15 miles north-northwest.
Under the town center the state geologic map shows Brunswick Formation (sandstone), from the Late Triassic, 202 to 237 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 46×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Conglomerate-sandstone. Age: Early Jurassic to Late Jurassic, 145 to 202 million years old. About 7 mi of the line.
Sandstone. Age: Late Triassic, 202 to 237 million years old. About 4 mi of the line.
Conglomerate, sandstone. Age: Early Jurassic to Late Jurassic, 145 to 202 million years old. About 4 mi of the line.
Mudstone, sandstone, arkose. Age: Late Triassic, 202 to 237 million years old. About 3 mi of the line.
Basalt. Age: Early Jurassic, 175 to 202 million years old. About 1 mi of the line.
Pelitic-schist, gneiss, amphibolite. Age: Early Cambrian to Middle Ordovician, 459 to 542 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. 3 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 Pearl River reaches New York Harbor and the Atlantic Ocean by way of the Hackensack: about 35 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Pearl River; river miles along the main stem, rounded.
Pearl River has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 26° in January. About 46 inches of rain fall in a normal year.
On November 14 Pearl River normally reaches 56° and falls to 39°. The record high is 72°, in 1973; the record low 18°, in 1986. The most rain on this date, 0.96 in, fell in 1979.
Normals 1991–2020 and records since 1969 at Teterboro Airport, 14 miles south, 250 ft lower. NOAA, through RCC-ACIS.