The Springfield 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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75° on Nov. 11, 2020, the hottest reading for this week of the year since 1996. Next is 68° in 2005.
Springfield’s center stands about 720 ft above sea level. Within three miles the land runs from 560 ft to 930 ft, a difference of 370 ft: rolling country.
Under the town center the state geologic map shows Girard Shale (siltstone, shale), from the Late Devonian, 359 to 384 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 25×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, shale. 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.
Siltstone, shale. Age: Late Devonian, 359 to 384 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 Springfield reaches Lake Erie by way of Raccoon Creek: about 3 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Springfield; river miles along the main stem, rounded.
Springfield has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 17° in January. A normal year brings about 111 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Springfield normally reaches 48° and falls to 33°. The record high is 67°, in 2010; the record low 17°, in 1996. The most rain on this date, 0.53 in, fell in 2021.
Normals 1991–2020 and records since 1996 at Springboro 3 WNW, 10 miles south, 280 ft higher. NOAA, through RCC-ACIS.
