The Iola 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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Chance of showers
70° on Nov. 11, 1964, the hottest reading for this week of the year since 1941. Next is 69° in 1953.
Iola’s center stands about 960 ft above sea level. Within three miles the land runs from 920 ft to 1,120 ft, a difference of 200 ft: rolling country.
Under the town center the state geologic map shows Wolf River batholith; Wolf River Granite, from the Mesoproterozoic, 1 to 1.6 billion years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 45×. 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. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 12 mi of the line.
Granite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 7 mi of the line.
Granite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 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 Iola reaches Lake Michigan by way of Engibretson Creek, the North Branch Little Wolf, the South Branch Little Wolf, the Little Wolf, the Wolf River and the Fox River: about 140 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lakes on the way: Lake Winnebago 6124, Lake Winneconne and Lake Butte des Morts.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Iola; river miles along the main stem, rounded.
Iola has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 7° in January. About 34 inches of rain fall in a normal year.
On November 14 Iola normally reaches 43° and falls to 27°. The record high is 68°, in 1999; the record low 6°, in 1996. The most rain on this date, 0.76 in, fell in 1994.
Normals 1991–2020 and records since 1941 at Rosholt, 12 miles northwest, 180 ft higher. NOAA, through RCC-ACIS.
