The Union City 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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0° on Nov. 13, 2019, the coldest reading for this week of the year since 1893. Next is 5° in 1959.
Union City’s center stands about 1,130 ft above sea level. Within three miles the land runs from 1,050 ft to 1,130 ft, a difference of 80 ft: gently rolling country. The highest named summit within 15 miles is Hoosier Hill, about 1,320 ft, 14 miles south.
Under the town center the state geologic map shows Louisville Limestone through Brassfield Limestone, from the Silurian, 422 to 445 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 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.
Limestone. Age: Silurian, 422 to 445 million years old. About 12 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 8 mi of the line.
Dolostone. Age: Silurian, 425 to 445 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 Union City reaches the Gulf of America by way of the Little Mississinewa, the Mississinewa, the Wabash, Big Bayou, the Wabash River Old Channel, the Old Channel Wabash, the Ohio and the Mississippi: about 1,570 river miles.
Lake on the way: Mississinewa Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Union City; river miles along the main stem, rounded.
Union City has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 19° in January. About 40 inches of rain fall in a normal year.
On November 14 Union City normally reaches 52° and falls to 33°. The record high is 74°, in 1909; the record low 7°, in 1986. The most rain on this date, 2.45 in, fell in 1993.
Normals 1991–2020 and records since 1893 at Greenville Water Plant, 11 miles southeast, 100 ft lower. NOAA, through RCC-ACIS.
