The Edison 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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78° on Nov. 11, 2020, the hottest reading for this week of the year since 1893. Next is 74° in 1893.
Edison’s center stands about 1,060 ft above sea level. Within three miles the land runs from 1,000 ft to 1,210 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Hulse Hill, about 1,410 ft, 14 miles southeast.
Under the town center the state geologic map shows Ohio Shale (shale, black-shale), from the Devonian, 359 to 422 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 39×. 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, black-shale. Age: Devonian, 359 to 422 million years old. About 11 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 8 mi of the line.
Sandstone, shale. Age: Devonian, 359 to 422 million years old. About 2 mi of the line.
Limestone. Age: Devonian, 359 to 422 million years old. About 2 mi of the line.
Black-shale. Age: Carboniferous, 324 to 359 million years old. About 1 mi of the line.
Shale. Age: Devonian, 359 to 422 million years old. About 1.0 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 Edison reaches the Gulf of America by way of Whetstone Creek, the Olentangy, the Scioto, the Ohio and the Mississippi: about 1,780 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Edison; river miles along the main stem, rounded.
Edison has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 20° in January. A normal year brings about 23 inches of snow; with the rain, that comes to about 38 inches of water.
On November 14 Edison normally reaches 52° and falls to 35°. The record high is 72°, in 1909; the record low 6°, in 2019. The most rain on this date, 1.15 in, fell in 1972.
Normals 1991–2020 and records since 1893 at Bucyrus, 18 miles north-northwest, 100 ft lower. NOAA, through RCC-ACIS.
