The Lakes of the Four Seasons 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.
Mostly sunny
Mostly sunny; warmer
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Sunny
Partly cloudy
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Partly cloudy
75° on Nov. 11, 2020, the hottest reading for this week of the year since 1963. Next is 74° in 1964.
Lakes of the Four Seasons’s center stands about 770 ft above sea level. Within three miles the land runs from 690 ft to 830 ft, a difference of 140 ft: gently rolling country.
Under the town center the state geologic map shows Ellsworth Shale, from the Devonian to Carboniferous, 324 to 422 million 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 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.
Shale. Age: Devonian to Carboniferous, 324 to 422 million years old. About 18 mi of the line.
Limestone, dolostone. Age: Devonian, 359 to 422 million years old. About 3 mi of the line.
Black-shale. Age: Devonian, 359 to 422 million years old. About 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 Lakes of the Four Seasons reaches the Gulf of America by way of East Branch Stony Run, the Kankakee, the Illinois and the Mississippi: about 1,550 river miles.
Lake on the way: Peoria Lake.
1,190 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lakes of the Four Seasons; river miles along the main stem, rounded.
Lakes of the Four Seasons has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 15° in January. A normal year brings about 30 inches of snow; with the rain, that comes to about 40 inches of water.
On November 14 Lakes of the Four Seasons normally reaches 50° and falls to 31°. The record high is 73°, in 1999; the record low 11°, in 1976. The most rain on this date, 1.62 in, fell in 1972.
Normals 1991–2020 and records since 1963 at Lowell Wwtp, 15 miles southwest, 100 ft lower. NOAA, through RCC-ACIS.
