The Harrodsburg 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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6° on Nov. 13, 2019, the coldest reading for this week of the year since 1893. Next is 7° in 1959.
Harrodsburg’s center stands about 590 ft above sea level. Within three miles the land runs from 500 ft to 940 ft, a difference of 440 ft: hilly country. The highest named summit within 15 miles is Bucker Knob, about 940 ft, 14 miles northeast.
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 41×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 9 mi of the line.
Siltstone. Age: Carboniferous, 324 to 359 million years old. About 6 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 5 mi of the line.
Sandstone. 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 Harrodsburg reaches the Gulf of America by way of Jackson Creek, Salt Creek, the East Fork White, the White River, Big Bayou, the Wabash River Old Channel, the Old Channel Wabash, the Ohio and the Mississippi: about 1,350 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 Harrodsburg; river miles along the main stem, rounded.
Harrodsburg has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 21° in January. A normal year brings about 16 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Harrodsburg normally reaches 54° and falls to 33°. The record high is 75°, in 1978; the record low 7°, in 2019. The most rain on this date, 1.77 in, fell in 1972.
Normals 1991–2020 and records since 1893 at Oolitic Purdue Ex Frm, 9 miles south. NOAA, through RCC-ACIS.
