The Robertsville 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.
Robertsville’s center stands about 170 ft above sea level. Within three miles the land runs from 70 ft to 220 ft, a difference of 150 ft: gently rolling country. The highest named summit within 15 miles is Beacon Hill, about 430 ft, 4 miles east-northeast.
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 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.
Sand, clay. Age: Late Cretaceous, 72 to 84 million years old. About 12 mi of the line.
Sand. Age: Late Cretaceous, 72 to 84 million years old. About 3 mi of the line.
Clay, silt. Age: Late Cretaceous, 72 to 84 million years old. About 3 mi of the line.
Sand. Age: Late Cretaceous, 72 to 84 million years old. About 1 mi of the line.
Sand. Age: Late Cretaceous, 72 to 84 million years old. About 1 mi of the line.
Sand. Age: Late Cretaceous, 66 to 72 million years old. About 0.9 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 Robertsville reaches New York Harbor and the Atlantic Ocean by way of Pine Brook, Matchaponix Brook, the South River and the Raritan: about 30 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Robertsville; river miles along the main stem, rounded.
Robertsville 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 Robertsville 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, 3 miles southeast. NOAA, through RCC-ACIS.
