The Arvon 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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Mostly sunny; warmer
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69° on Nov. 13, 1999, the hottest reading for this week of the year since 1968. Next is 63° in 2023.
Arvon’s center stands about 810 ft above sea level. Within three miles the land runs from 690 ft to 1,120 ft, a difference of 430 ft: hilly country. The highest named summit within 15 miles is Mount Curwood, about 2,010 ft, 10 miles south-southwest.
Under the town center the state geologic map shows Jacobsville Sandstone, from the Mesoproterozoic, 1 to 1.6 billion years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 14×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Slate. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 8 mi of the line.
Sandstone. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.
Gneiss, amphibolite. Age: Neoarchean, 2.5 to 2.8 billion years old. About 3 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
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 Arvon reaches Lake Superior by way of Fossom Creek and the Ravine: about 6 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Arvon; river miles along the main stem, rounded.
Arvon has a warm-summer humid continental climate. Summer afternoons average 75° in July; winter nights fall to about 7° in January. A normal year brings about 208 inches of snow; with the rain, that comes to about 38 inches of water.
On November 14 Arvon normally reaches 36° and falls to 24°. The record high is 61°, in 1990; the record low 0°, in 1995. The most rain on this date, 0.90 in, fell in 2000.
Normals 1991–2020 and records since 1968 at Herman, 16 miles southwest, 910 ft higher. NOAA, through RCC-ACIS.
