The South Dayton 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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77° on Nov. 11, 2020, the hottest reading for this week of the year since 1895. Next is 73° in 1990.
South Dayton’s center stands about 1,310 ft above sea level. Within three miles the land runs from 1,280 ft to 1,680 ft, a difference of 400 ft: rolling country. The highest named summit within 15 miles is Arab Hill, about 2,150 ft, 8 miles west-southwest.
Under the town center the state geologic map shows Northeast Shale and Shumla Siltstone (shale, siltstone), from the Late Devonian, 359 to 384 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 14×. 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, siltstone. Age: Late Devonian, 359 to 384 million years old. About 9 mi of the line.
Shale, siltstone, sandstone. Age: Late Devonian, 359 to 384 million years old. About 8 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.
Shale, sandstone. Age: Late Devonian, 359 to 384 million years old. About 2 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 South Dayton reaches the Gulf of America by way of Slab City Creek, Conewango Creek, the Allegheny, the Ohio and the Mississippi: about 2,190 river miles.
970 miles of the trip are on the Ohio.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of South Dayton; river miles along the main stem, rounded.
South Dayton has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 16° in January. A normal year brings about 98 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 South Dayton normally reaches 49° and falls to 31°. The record high is 71°, in 2010; the record low 7°, in 1905. The most rain on this date, 0.88 in, fell in 1988.
Normals 1991–2020 and records since 1895 from the Jamestown Area threaded record (Jamestown 4 ENE, 18 miles south-southwest). NOAA, through RCC-ACIS.
