The Stewartstown 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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71° on Nov. 11, 2020, the hottest reading for this week of the year since 1918. Next is 67° in 2002.
Stewartstown’s center stands about 2,090 ft above sea level. Within three miles the land runs from 1,190 ft to 2,510 ft, a difference of 1,320 ft: steep hill country. The highest named summit within 15 miles is Bunnell Mountain, about 3,720 ft, 12 miles south-southwest.
Under the town center the state geologic map shows Frontenac Formation, undivided (metagraywacke, slate), from the Silurian, 422 to 445 million years old.
The section below crosses 12 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 8×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metagraywacke, slate. Age: Silurian, 422 to 445 million years old. About 8 mi of the line.
Metaclastic. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Granofels, pelitic-schist. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Metavolcanic. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Granite. Age: Devonian to Carboniferous, 324 to 422 million years old. About 1 mi of the line.
Phyllite, metasandstone. Age: Early Devonian, 394 to 422 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. 6 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 Stewartstown reaches Long Island Sound and the Atlantic Ocean by way of Cedar Brook, Bishop Brook and the Connecticut: about 380 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Stewartstown; river miles along the main stem, rounded.
Stewartstown has a warm-summer humid continental climate. Summer afternoons average 75° in July; winter nights fall to about 0° in January. A normal year brings about 143 inches of snow; with the rain, that comes to about 47 inches of water.
On November 14 Stewartstown normally reaches 40° and falls to 24°. The record high is 59°, in 2010; the record low −1°, in 2019. The most rain on this date, 0.72 in, fell in 1948.
Normals 1991–2020 and records since 1918 at First Connecticut Lake, 11 miles north-northeast, 440 ft lower. NOAA, through RCC-ACIS.
