The Dallas 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.
Sunny
Partly cloudy; warmer
Mostly sunny
Sunny
Partly cloudy
Mostly sunny
Partly cloudy
0° on Nov. 17, 1959, the coldest reading for this week of the year since 1897. Next is 4° in 1940.
Dallas City’s center stands about 590 ft above sea level. Within three miles the land runs from 510 ft to 710 ft, a difference of 200 ft: rolling country. The highest named summit within 15 miles is Gittings Mound, about 760 ft, 6 miles east.
The section below crosses 6 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: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 15 mi of the line.
Dolostone, limestone, siltstone. Age: Early Mississippian, 347 to 359 million years old. About 5 mi of the line.
Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 2 mi of the line.
Shale, siltstone. Age: Late Devonian, 359 to 374 million years old. About 1 mi of the line.
Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 0.8 mi of the line.
Dolostone, limestone. Age: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 0.6 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 Dallas City reaches the Gulf of America by way of the Mississippi: about 1,360 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Dallas City; river miles along the main stem, rounded.
Dallas City has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 16° in January. About 38 inches of rain fall in a normal year.
On November 14 Dallas City normally reaches 50° and falls to 33°. The record high is 75°, in 1964; the record low 6°, in 1940. The most rain on this date, 1.26 in, fell in 1968.
Normals 1991–2020 and records since 1897 from the Burlington Area threaded record (Burlington Municipal Airport, 10 miles north-northeast). NOAA, through RCC-ACIS.
