The Hendrum 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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65° on Nov. 13, 1999, the hottest reading for this week of the year since 1962. Next is 65° in 2001.
Hendrum’s center stands about 870 ft above sea level. Within three miles the land runs from 850 ft to 890 ft, a difference of 40 ft: nearly flat ground.
Under the town center the state geologic map shows Granitoid intrusion (granitic), from the Neoarchean, 2.5 to 2.8 billion years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Granitic. Age: Neoarchean, 2.5 to 2.8 billion years old. About 9 mi of the line.
Sandstone, shale. Age: Early Cretaceous, 100 to 145 million years old. About 6 mi of the line.
Metabasalt, greenstone. Age: Neoarchean, 2.5 to 2.8 billion years old. About 4 mi of the line.
Age: Precambrian. About 2 mi of the line.
Shale, sandstone. Age: Early Cretaceous to Late Cretaceous, 66 to 145 million years old. About 1 mi of the line.
Shale, sandstone. Age: Early Cretaceous to Late Cretaceous, 66 to 145 million years old. About 0.8 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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 Hendrum reaches Hudson Bay by way of the Wild Rice, the Red River of the North and the Nelson: about 1,030 river miles. Past the border it runs north through Canada to Hudson Bay.
Lake on the way: Lake Winnipeg.
400 miles of the trip are on the Nelson.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hendrum; river miles along the main stem, rounded.
Hendrum has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about −1° in January. A normal year brings about 41 inches of snow; with the rain, that comes to about 25 inches of water.
On November 14 Hendrum normally reaches 38° and falls to 22°. The record high is 62°, in 2025; the record low 0°, in 2014. The most rain on this date, 0.30 in, fell in 1971.
Normals 1991–2020 and records since 1962 at Georgetown 1 E, 13 miles south. NOAA, through RCC-ACIS.
