The Marlboro 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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79° on Nov. 16, 1993, the hottest reading for this week of the year since 1874. Next is 78° in 1973.
Marlboro’s center stands about 180 ft above sea level. Within three miles the land runs from 100 ft to 280 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is Beacon Hill, about 430 ft, 4 miles north-northeast.
The section below crosses 11 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 55×. 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. Age: Late Cretaceous, 66 to 72 million years old. About 5 mi of the line.
Sand, clay. Age: Late Cretaceous, 66 to 72 million years old. About 4 mi of the line.
Clay, sand. Age: Early Miocene, 16 to 23 million years old. About 3 mi of the line.
Sand. Age: Early Paleocene, 62 to 66 million years old. About 2 mi of the line.
Sand. Age: Late Cretaceous, 66 to 72 million years old. About 2 mi of the line.
Clay, silt. Age: Late Cretaceous, 72 to 84 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. 5 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 Marlboro reaches New York Harbor and the Atlantic Ocean by way of Deep Run, the South River and the Raritan: about 25 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Marlboro; river miles along the main stem, rounded.
Marlboro has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 23° in January. About 49 inches of rain fall in a normal year.
On November 14 Marlboro normally reaches 57° and falls to 36°. The record high is 76°, in 1993; the record low 20°, in 2019. The most rain on this date, 0.85 in, fell in 2008.
Normals 1991–2020 and records since 1874 at Freehold-Marlboro, here. NOAA, through RCC-ACIS.
