The Wheatfield 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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74° on Nov. 11, 2020, the hottest reading for this week of the year since 1961. Next is 73° in 1964.
Wheatfield’s center stands about 670 ft above sea level. Within three miles the land runs from 650 ft to 730 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Muscatatuck Group (limestone, dolostone), from the Devonian, 359 to 422 million years old.
The section below crosses 2 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.
Limestone, dolostone. Age: Devonian, 359 to 422 million years old. About 13 mi of the line.
Black-shale. Age: Devonian, 359 to 422 million years old. About 12 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 Wheatfield reaches the Gulf of America by way of 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 Wheatfield; river miles along the main stem, rounded.
Wheatfield has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 15° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 40 inches of water.
On November 14 Wheatfield normally reaches 49° and falls to 31°. The record high is 72°, in 1999; the record low 6°, in 1986. The most rain on this date, 1.15 in, fell in 1972.
Normals 1991–2020 and records since 1961 at Wanatah 2 WNW, 19 miles north-northeast. NOAA, through RCC-ACIS.
