The Gorham 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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74° on Nov. 11, 2020, the hottest reading for this week of the year since 1969. Next is 71° in 1989.
Gorham’s center stands about 890 ft above sea level. Within three miles the land runs from 870 ft to 1,090 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is Stid Hill, about 2,110 ft, 13 miles west-southwest.
Under the town center the state geologic map shows Tully Limestone, from the Middle Devonian, 384 to 394 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 16×. 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: Late Devonian, 359 to 384 million years old. About 8 mi of the line.
Shale. Age: Middle Devonian, 384 to 388 million years old. About 3 mi of the line.
Shale, limestone. Age: Middle Devonian, 384 to 388 million years old. About 3 mi of the line.
Limestone. Age: Middle Devonian, 384 to 394 million years old. About 2 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 1 mi of the line.
Shale. Age: Middle Devonian, 384 to 394 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. 3 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 Gorham reaches Lake Ontario by way of Flint Creek, the Canandaigua Outlet, the Erie Canal, the Clyde, the Seneca and the Oswego: about 120 river miles. From the lake it goes down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Gorham; river miles along the main stem, rounded.
Gorham has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 16° in January. A normal year brings about 57 inches of snow; with the rain, that comes to about 35 inches of water.
On November 14 Gorham normally reaches 47° and falls to 32°. The record high is 65°, in 2005; the record low 14°, in 2019. The most rain on this date, 0.62 in, fell in 1972.
Normals 1991–2020 and records since 1969 at Geneva Research Farm, 7 miles northeast, 170 ft lower. NOAA, through RCC-ACIS.
