The Charlemont 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
Mostly cloudy; warmer
Partly cloudy
Mostly sunny
Mostly sunny
Mostly sunny
Partly cloudy
73° on Nov. 11, 2020, the hottest reading for this week of the year since 1987. Next is 73° in 2022.
Charlemont’s center stands about 600 ft above sea level. Within three miles the land runs from 550 ft to 1,810 ft, a difference of 1,260 ft: steep hill country. The highest named summit within 15 miles is Mount Fitch, about 3,120 ft, 15 miles west.
The section below crosses 11 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.
Schist. Age: Early Devonian, 394 to 422 million years old. About 9 mi of the line.
Quartz-feldspar-schist. Age: Neoproterozoic to Early Cambrian, 521 to 1,000 million years old. About 4 mi of the line.
Amphibolite, greenstone, schist. Age: Silurian, 430 to 436 million years old. About 3 mi of the line.
Schist. Age: Early Devonian, 394 to 422 million years old. About 3 mi of the line.
Granofels, schist. Age: Early Ordovician to Middle Ordovician, 471 to 487 million years old. About 2 mi of the line.
Schist, granofels. Age: Neoproterozoic to Early Cambrian, 521 to 1,000 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. 5 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 Charlemont reaches Long Island Sound and the Atlantic Ocean by way of the Deerfield and the Connecticut: about 140 river miles.
120 miles of the trip are on the Connecticut.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Charlemont; river miles along the main stem, rounded.
Charlemont has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 14° in January. About 42 inches of rain fall in a normal year.
On November 14 Charlemont normally reaches 49° and falls to 30°. The record high is 63°, in 2011; the record low 16°, in 2019. The most rain on this date, 0.65 in, fell in 2000.
Normals 1991–2020 and records since 1987 at North Adams Harriman Airport, 16 miles west-northwest. NOAA, through RCC-ACIS.
