The Black Wolf 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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5° on Nov. 12, 2019, the coldest reading for this week of the year since 1996. Next is 8° in 2014.
Black Wolf’s center stands about 790 ft above sea level. Within three miles the land runs from 740 ft to 860 ft, a difference of 120 ft: gently rolling country. The highest named summit within 15 miles is Mary Hill, about 1,090 ft, 13 miles southeast.
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 6 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 14 mi of the line.
Shale, dolostone. Age: Ordovician, 445 to 487 million years old. About 2 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 2 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 0.6 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 0.4 mi of the line.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 0.2 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 Black Wolf reaches Lake Michigan by way of Lake Winnebago 6124 and the Fox River: about 60 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lake on the way: Lake Winnebago 6124.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Black Wolf; river miles along the main stem, rounded.
Black Wolf has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 11° in January. About 31 inches of rain fall in a normal year.
On November 14 Black Wolf normally reaches 45° and falls to 29°. The record high is 62°, in 2025; the record low 10°, in 1996. The most rain on this date, 0.21 in, fell in 2024.
Normals 1991–2020 and records since 1996 at Oshkosh Wittman Regional Airport, 4 miles north-northwest. NOAA, through RCC-ACIS.
