The Waukenabo 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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68° on Nov. 17, 1953, the hottest reading for this week of the year since 1892. Next is 68° in 1999.
Waukenabo’s center stands about 1,260 ft above sea level. Within three miles the land runs from 1,220 ft to 1,300 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Coleraine Formation (conglomerate, lignite, sandstone), from the Late Cretaceous, 94 to 100 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.
Slate, graywacke. Age: Paleoproterozoic, 1.6 to 2 billion years old. About 13 mi of the line.
Conglomerate, lignite, sandstone. Age: Late Cretaceous, 94 to 100 million years old. About 7 mi of the line.
Graywacke, slate. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 2 mi of the line.
Graywacke, slate. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 2 mi of the line.
Siltstone, graywacke, slate. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 0.7 mi of the line.
Banded-iron-formation. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 0.5 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 Waukenabo reaches the Gulf of America by way of the Little Willow and the Mississippi: about 2,040 river miles.
Lake on the way: Lake Pepin.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Waukenabo; river miles along the main stem, rounded.
Waukenabo has a cold desert climate. Summer afternoons average 78° in July; winter nights fall to about −2° in January. Barely 0.0 inches of rain fall in a normal year.
On November 14 Waukenabo normally reaches 38° and falls to 23°. The record high is 64°, in 2005; the record low −7°, in 1919. The most rain on this date, 1.24 in, fell in 1909.
Normals 1991–2020 and records since 1892 at Sandy Lake Dam Libby, 14 miles east-northeast. NOAA, through RCC-ACIS.
