The Huron 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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82° on Nov. 13, 1999, the hottest reading for this week of the year since 1891. Next is 79° in 1964.
Huron’s center stands about 1,160 ft above sea level. Within three miles the land runs from 1,030 ft to 1,170 ft, a difference of 140 ft: gently rolling country.
Under the town center the state geologic map shows Drift (sand, silt), from the Pleistocene, less than 2.6 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 54×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, silt. Age: Pleistocene, less than 2.6 million years old. About 15 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1.0 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 Huron reaches the Gulf of America by way of Little Grasshopper Creek, the Delaware, the Kansas, the Missouri and the Mississippi: about 1,650 river miles.
Lake on the way: Perry Lake.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Huron; river miles along the main stem, rounded.
Huron has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 16° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 38 inches of water.
On November 14 Huron normally reaches 53° and falls to 30°. The record high is 76°, in 1964; the record low 2°, in 1940. The most rain on this date, 1.85 in, fell in 1931.
Normals 1991–2020 and records since 1891 at Horton, 9 miles west-northwest, 130 ft lower. NOAA, through RCC-ACIS.
