The Westerlo 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.
73° on Nov. 16, 1993, the hottest reading for this week of the year since 1942. Next is 72° in 2020.
Westerlo’s center stands about 1,160 ft above sea level. Within three miles the land runs from 880 ft to 1,610 ft, a difference of 730 ft: hilly country. The highest named summit within 15 miles is Windham High Peak, about 3,520 ft, 15 miles south-southwest.
Under the town center the state geologic map shows Undifferentiated Lower Hamilton Group (sandstone, shale), from the Middle Devonian, 384 to 394 million years old.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, shale. Age: Middle Devonian, 384 to 394 million years old. About 12 mi of the line.
Shale, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 6 mi of the line.
Shale, siltstone, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 2 mi of the line.
Graywacke, sandstone, siltstone. Age: Late Ordovician, 445 to 459 million years old. About 1 mi of the line.
Sandstone, shale. Age: Middle Devonian, 384 to 388 million years old. About 1 mi of the line.
Shale. Age: Early Devonian to Middle Devonian, 388 to 410 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 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 Westerlo reaches New York Harbor and the Atlantic Ocean by way of Wolf Fly Creek, Basic Creek, Catskill Creek and the Hudson: about 140 river miles.
110 miles of the trip are on the Hudson.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Westerlo; river miles along the main stem, rounded.
Westerlo has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 13° in January. A normal year brings about 46 inches of snow; with the rain, that comes to about 42 inches of water.
On November 14 Westerlo normally reaches 48° and falls to 30°. The record high is 66°, in 1964; the record low 8°, in 1971. The most rain on this date, 1.17 in, fell in 1955.
Normals 1991–2020 and records since 1942 at Alcove Dam, 7 miles east-southeast, 530 ft lower. NOAA, through RCC-ACIS.