The St. Germain 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. 14, 1953, the hottest reading for this week of the year since 1903. Next is 67° in 1944.
St. Germain’s center stands about 1,640 ft above sea level. Within three miles the land runs from 1,580 ft to 1,730 ft, a difference of 150 ft: gently rolling country.
Under the town center the state geologic map shows Granite-tonalite (granite, tonalite, gneiss), from the Paleoproterozoic, 1.8 to 1.9 billion 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.
Granite, tonalite, gneiss. Age: Paleoproterozoic, 1.8 to 1.9 billion years old. About 11 mi of the line.
Basalt, basaltic-andesite. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 7 mi of the line.
Metagraywacke. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 6 mi of the line.
Banded-iron-formation. Age: Paleoproterozoic, 1.6 to 2.5 billion 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.
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 St. Germain reaches the Gulf of America by way of the Saint Germain, Gilmore Creek, the Wisconsin and the Mississippi: about 1,990 river miles.
Lakes on the way: Petenwell Lake, Lake Wisconsin, Lake Du Bay and Wisconsin River Flowage 4964.
1,610 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of St. Germain; river miles along the main stem, rounded.
St. Germain has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 1° in January. A normal year brings about 99 inches of snow; with the rain, that comes to about 34 inches of water.
On November 14 St. Germain normally reaches 37° and falls to 23°. The record high is 68°, in 1953; the record low −8°, in 1986. The most rain on this date, 0.59 in, fell in 2010.
Normals 1991–2020 and records since 1903 at Minocqua, 11 miles west-southwest. NOAA, through RCC-ACIS.
