The Yorkville 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.
12° on Nov. 17, 1959, the coldest reading for this week of the year since 1948. Next is 12° in 2019.
Yorkville’s center stands about 370 ft above sea level. Within three miles the land runs from 300 ft to 400 ft, a difference of 100 ft: gently rolling country.
Under the town center the state geologic map shows Loess (silt), from the Quaternary, less than 2.6 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt. Age: Quaternary, less than 2.6 million years old. About 24 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 Yorkville reaches the Gulf of America by way of York Branch, Bethel Branch, the North Fork Forked Deer, the Forked Deer, the Obion and the Mississippi: about 880 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Yorkville; river miles along the main stem, rounded.
Yorkville has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 29° in January. About 53 inches of rain fall in a normal year.
On November 14 Yorkville normally reaches 60° and falls to 38°. The record high is 81°, in 1964; the record low 18°, in 1986. The most rain on this date, 1.98 in, fell in 1958.
Normals 1991–2020 and records since 1948 at Dyersburg Municipal Airport, 18 miles west-southwest. NOAA, through RCC-ACIS.