The Plainfield 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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3.02 inches of rain fell in two days, the most for this week of the year since records began in 1895. The next wettest, 2.27 inches, fell in 2022.
Plainfield’s center stands about 790 ft above sea level. Within three miles the land runs from 750 ft to 1,070 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Elephant Knob, about 1,250 ft, 13 miles northeast.
Under the town center the state geologic map shows Allegheny and Pottsville Groups, Undivided (shale, siltstone), from the Carboniferous, 299 to 324 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 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. Age: Carboniferous, 299 to 324 million years old. About 17 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 0.3 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 Plainfield reaches the Gulf of America by way of Wills Creek, the Muskingum, the Ohio and the Mississippi: about 1,890 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 Plainfield; river miles along the main stem, rounded.
Plainfield has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 22° in January. About 39 inches of rain fall in a normal year.
On November 14 Plainfield normally reaches 54° and falls to 34°. The record high is 75°, in 1909; the record low 9°, in 1986. The most rain on this date, 1.33 in, fell in 2011.
Normals 1991–2020 and records since 1895 from the Zanesville Area threaded record (Zanesville Municipal Airport, 20 miles south-southwest). NOAA, through RCC-ACIS.
