The Readington 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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77° on Nov. 12, 1909, the hottest reading for this week of the year since 1898. Next is 76° in 1973.
Readington’s center stands about 130 ft above sea level. Within three miles the land runs from 60 ft to 260 ft, a difference of 200 ft: rolling country. The highest named summit within 15 miles is Fox Hill, about 1,040 ft, 12 miles north-northwest.
Under the town center the state geologic map shows Passaic Formation (siltstone, shale), from the Early Jurassic to Late Jurassic, 145 to 202 million years old.
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 22×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, shale. Age: Early Jurassic to Late Jurassic, 145 to 202 million years old. About 17 mi of the line.
Granite. Age: Mesoproterozoic, 1.1 to 1.1 billion years old. About 3 mi of the line.
Siltstone. Age: Late Triassic to Early Jurassic, 175 to 237 million years old. About 3 mi of the line.
Conglomerate. Age: Early Jurassic to Late Jurassic, 145 to 202 million years old. About 0.9 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.6 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.4 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 Readington reaches New York Harbor and the Atlantic Ocean by way of Holland Brook and the Raritan: about 35 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Readington; river miles along the main stem, rounded.
Readington has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 21° in January. A normal year brings about 27 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 Readington normally reaches 54° and falls to 34°. The record high is 72°, in 1964; the record low 15°, in 1986. The most rain on this date, 0.94 in, fell in 1940.
Normals 1991–2020 and records since 1898 at Flemington 5 NNW, 8 miles west, 140 ft higher. NOAA, through RCC-ACIS.
