The Sleepy Hollow Lake 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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Partly cloudy; warmer
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74° on Nov. 15, 1993, the hottest reading for this week of the year since 1957. Next is 72° in 1964.
Sleepy Hollow Lake’s center stands about 110 ft above sea level. Within three miles the land runs from 0 ft to 300 ft, a difference of 300 ft: rolling country. Open water lies within three miles. The highest named summit within 15 miles is Stoppel Point, about 3,430 ft, 14 miles west-southwest.
Under the town center the state geologic map shows Austin Glen Formation (graywacke, shale), from the Middle Ordovician, 459 to 471 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.
Graywacke, shale. Age: Middle Ordovician, 459 to 471 million years old. About 10 mi of the line.
Shale. Age: Neoproterozoic to Early Cambrian, 521 to 1,000 million years old. About 8 mi of the line.
Slate, shale. Age: Ordovician, 445 to 487 million years old. About 1 mi of the line.
Shale, conglomerate, limestone. Age: Cambrian, 487 to 542 million years old. About 0.4 mi of the line.
Shale, siltstone. Age: Ordovician, 445 to 487 million years old. About 0.3 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.
A raindrop that lands in Sleepy Hollow Lake reaches New York Harbor and the Atlantic Ocean by way of Murderers Creek and the Hudson: about 120 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Sleepy Hollow Lake; river miles along the main stem, rounded.
Sleepy Hollow Lake has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 18° in January. A normal year brings about 31 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Sleepy Hollow Lake normally reaches 52° and falls to 34°. The record high is 71°, in 1989; the record low 14°, in 1986. The most rain on this date, 1.20 in, fell in 1972.
Normals 1991–2020 and records since 1957 at Hudson Correctional Facility, 4 miles south-southeast. NOAA, through RCC-ACIS.
