The Hebron 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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74° on Nov. 11, 2022, the hottest reading for this week of the year since 1941. Next is 73° in 1971.
Hebron’s center stands about 840 ft above sea level. Within three miles the land runs from 780 ft to 900 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Sinnipee Group (dolostone), from the Ordovician, 445 to 487 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 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.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 13 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 4 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million 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 Hebron reaches the Gulf of America by way of the Bark, the Rock River and the Mississippi: about 1,690 river miles.
Lake on the way: Lake Koshkonong.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hebron; river miles along the main stem, rounded.
Hebron has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 12° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 36 inches of water.
On November 14 Hebron normally reaches 46° and falls to 29°. The record high is 73°, in 1971; the record low 4°, in 1986. The most rain on this date, 0.84 in, fell in 1957.
Normals 1991–2020 and records since 1941 at Whitewater Wwtp, 5 miles south-southwest. NOAA, through RCC-ACIS.
