The Aberdeen 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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11° on Nov. 13, 1976, the coldest reading for this week of the year since 1896. Next is 13° in 1911.
Aberdeen’s center stands about 520 ft above sea level. Within three miles the land runs from 470 ft to 920 ft, a difference of 450 ft: hilly country. The highest named summit within 15 miles is Big Brier Knob, about 1,220 ft, 14 miles east.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 36×. 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, limestone, dolostone. Age: Late Ordovician, 445 to 454 million years old. About 8 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 7 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 4 mi of the line.
Limestone, shale. Age: Late Ordovician, 445 to 459 million years old. About 2 mi of the line.
Shale. Age: Silurian, 422 to 445 million years old. About 0.5 mi of the line.
Dolostone. Age: Silurian, 425 to 434 million years old. About 0.4 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 3 smaller units along the line are not listed.
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 Aberdeen reaches the Gulf of America by way of the Ohio and the Mississippi: about 1,530 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 Aberdeen; river miles along the main stem, rounded.
Aberdeen has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 23° in January. About 48 inches of rain fall in a normal year.
On November 14 Aberdeen normally reaches 56° and falls to 34°. The record high is 81°, in 1955; the record low 14°, in 1986. The most rain on this date, 1.72 in, fell in 1951.
Normals 1991–2020 and records since 1896 at Maysville Wastewater Treatment Plant, 3 miles north-northwest. NOAA, through RCC-ACIS.
