The Perth Amboy 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 1893. Next is 76° in 2020.
Perth Amboy’s center stands about 50 ft above sea level. Within three miles the land runs from 0 ft to 150 ft, a difference of 150 ft: gently rolling country. Open water lies within three miles. The highest named summit within 15 miles is Todt Hill, about 460 ft, 10 miles northeast.
Under the town center the state geologic map shows Raritan Formation (clay, sand), from the Late Cretaceous, 66 to 100 million years old.
The section below crosses 5 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. Age: Late Cretaceous, 66 to 100 million years old. About 9 mi of the line.
Silt, sand. Age: Late Cretaceous, 94 to 100 million years old. About 5 mi of the line.
Clay, sand. Age: Late Cretaceous, 66 to 100 million years old. About 3 mi of the line.
Siltstone. Age: Late Triassic to Early Jurassic, 175 to 237 million years old. About 2 mi of the line.
Sand. Age: Late Cretaceous, 84 to 87 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.
Rain that falls on Perth Amboy runs straight into New York Harbor and the Atlantic Ocean.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Perth Amboy; river miles along the main stem, rounded.
Perth Amboy has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 23° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 50 inches of water.
On November 14 Perth Amboy normally reaches 56° and falls to 36°. The record high is 72°, in 1955; the record low 15°, in 1986. The most rain on this date, 0.81 in, fell in 1940.
Normals 1991–2020 and records since 1893 from the New Brunswick Area threaded record (New Brunswick 3 SE, 9 miles west-southwest). NOAA, through RCC-ACIS.
