The Frankfort 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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5° on Nov. 13, 2019, the coldest reading for this week of the year since 1915. Next is 8° in 1933.
Frankfort’s center stands about 740 ft above sea level. Within three miles the land runs from 720 ft to 1,040 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Nevins Hill, about 1,340 ft, 12 miles southwest.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 32×. 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 19 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 1 mi of the line.
Shale, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 1.0 mi of the line.
Dolostone. Age: Silurian, 425 to 434 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 Frankfort reaches the Gulf of America by way of Oldtown Run, North Fork Paint Creek, Paint Creek, the Scioto, the Ohio and the Mississippi: about 1,680 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 Frankfort; river miles along the main stem, rounded.
Frankfort has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 20° in January. A normal year brings about 18 inches of snow; with the rain, that comes to about 41 inches of water.
On November 14 Frankfort normally reaches 52° and falls to 32°. The record high is 75°, in 1931; the record low 5°, in 2019. The most rain on this date, 1.50 in, fell in 1929.
Normals 1991–2020 and records since 1915 at Washington Court House, 16 miles northwest, 220 ft higher. NOAA, through RCC-ACIS.
