The Guion 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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Partly cloudy; warmer
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6.48 inches of rain fell in two days, the most for this week of the year since records began in 1941. The next wettest, 4.12 inches, fell in 1958.
Guion’s center stands about 390 ft above sea level. Within three miles the land runs from 280 ft to 910 ft, a difference of 630 ft: hilly country. The highest named summit within 15 miles is Irons Mountain, about 1,600 ft, 7 miles southwest.
Under the town center the state geologic map shows St. Peter Sanstone and Everton Formation (Middle Ordovician) (sandstone, dolostone), from the Middle Ordovician, 459 to 471 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 17×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, dolostone. Age: Middle Ordovician, 459 to 471 million years old. About 13 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 6 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Sandstone, shale, limestone. Age: Carboniferous, 324 to 359 million years old. About 1 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 0.6 mi of the line.
Limestone. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 0.4 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 Guion reaches the Gulf of America by way of Rocky Bayou, the White River and the Mississippi: about 940 river miles.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Guion; river miles along the main stem, rounded.
Guion has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 26° in January. About 50 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Guion normally reaches 58° and falls to 37°. The record high is 86°, in 1955; the record low 16°, in 1986. The most rain on this date, 1.91 in, fell in 1958.
Normals 1991–2020 and records since 1941 at Batesville Lvstk, 10 miles southeast, 180 ft higher. NOAA, through RCC-ACIS.
