The Carroll 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.
Mostly cloudy
Mostly cloudy
Partly cloudy
Sunny
Mostly sunny
Partly cloudy
Mostly sunny
5° on Nov. 13, 2019, the coldest reading for this week of the year since 1996. Next is 10° in 1996.
Carroll’s center stands about 830 ft above sea level. Within three miles the land runs from 770 ft to 1,140 ft, a difference of 370 ft: rolling country. The highest named summit within 15 miles is Jacobs Ladder, about 1,250 ft, 11 miles south-southeast.
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 45×. 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, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 11 mi of the line.
Shale, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 5 mi of the line.
Shale, black-shale. Age: Devonian, 359 to 422 million years old. About 4 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 324 to 359 million years old. About 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 Carroll reaches the Gulf of America by way of Walnut Creek, the Scioto, the Ohio and the Mississippi: about 1,730 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 Carroll; river miles along the main stem, rounded.
Carroll has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 20° in January. About 40 inches of rain fall in a normal year.
On November 14 Carroll normally reaches 53° and falls to 32°. The record high is 73°, in 2011; the record low 15°, in 1996. The most rain on this date, 0.86 in, fell in 2011.
Normals 1991–2020 and records since 1996 at Lancaster Fairfield County Airport, 4 miles southeast. NOAA, through RCC-ACIS.
