The Quasqueton 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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−2° on Nov. 12, 2019, the coldest reading for this week of the year since 1921. Next is 1° in 1986.
Quasqueton’s center stands about 890 ft above sea level. Within three miles the land runs from 870 ft to 1,020 ft, a difference of 150 ft: gently rolling country.
Under the town center the state geologic map shows Wapsipinicon Group (dolostone, limestone), from the Middle Devonian, 384 to 394 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 62×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone, dolostone. Age: Middle Devonian to Late Devonian, 374 to 388 million years old. About 13 mi of the line.
Dolostone, limestone. Age: Middle Devonian, 384 to 394 million years old. About 9 mi of the line.
Dolostone. Age: Late Ordovician to Silurian, 434 to 447 million years old. About 1 mi of the line.
Limestone. Age: Silurian, 431 to 440 million years old. About 0.9 mi of the line.
Dolostone. Age: Silurian, 431 to 440 million years old. About 0.3 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 Quasqueton reaches the Gulf of America by way of the Wapsipinicon and the Mississippi: about 1,620 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Quasqueton; river miles along the main stem, rounded.
Quasqueton has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 8° in January. A normal year brings about 35 inches of snow; with the rain, that comes to about 39 inches of water.
On November 14 Quasqueton normally reaches 46° and falls to 26°. The record high is 77°, in 1999; the record low 1°, in 1986. The most rain on this date, 0.49 in, fell in 1994.
Normals 1991–2020 and records since 1921 at Manchester #2, 17 miles east-northeast. NOAA, through RCC-ACIS.
