The Nassau 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.
Mostly cloudy
Partly cloudy; warmer
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70° on Nov. 15, 1956, the hottest reading for this week of the year since 1925. Next is 69° in 1964.
Nassau’s center stands about 840 ft above sea level. Within three miles the land runs from 450 ft to 1,200 ft, a difference of 750 ft: hilly country. The highest named summit within 15 miles is Misery Mountain, about 2,690 ft, 15 miles east-northeast.
Under the town center the state geologic map shows Nassau Formation (shale), from the Neoproterozoic to Early Cambrian, 521 to 1,000 million years old.
The section below crosses 10 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Neoproterozoic to Early Cambrian, 521 to 1,000 million years old. About 12 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 4 mi of the line.
Slate, phyllite, schist. Age: Middle Ordovician, 459 to 471 million years old. About 3 mi of the line.
Graywacke. Age: Cambrian, 487 to 542 million years old. About 2 mi of the line.
Black-shale. Age: Middle Ordovician, 459 to 471 million years old. About 1 mi of the line.
Melange. Age: Middle Ordovician, 459 to 471 million years old. About 1.0 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 4 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 Nassau reaches New York Harbor and the Atlantic Ocean by way of Kinderhook Creek and the Hudson: about 150 river miles.
120 miles of the trip are on the Hudson.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Nassau; river miles along the main stem, rounded.
Nassau has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 14° in January. About 44 inches of rain fall in a normal year.
On November 14 Nassau normally reaches 47° and falls to 30°. The record high is 63°, in 1959; the record low 13°, in 2019. The most rain on this date, 1.45 in, fell in 1959.
Normals 1991–2020 and records since 1925 at Pittsfield Municipal Airport, 15 miles east-southeast, 310 ft higher. NOAA, through RCC-ACIS.
