The Mondamin 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.
Mostly sunny
Mostly sunny
Mostly sunny
Partly cloudy
Partly cloudy
Partly cloudy
Showers likely
−5° on Nov. 12, 2019, the coldest reading for this week of the year since 1996. Next is −4° in 2014.
Mondamin’s center stands about 1,030 ft above sea level. Within three miles the land runs from 1,010 ft to 1,030 ft, a difference of 20 ft: nearly flat ground.
Under the town center the state geologic map shows Marmaton Group (shale, limestone), from the Middle Pennsylvanian, 307 to 315 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 54×. 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, siltstone. Age: Middle Pennsylvanian, 307 to 315 million years old. About 8 mi of the line.
Shale, sandstone, siltstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million years old. About 5 mi of the line.
Shale, limestone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Shale, limestone. Age: Middle Pennsylvanian, 307 to 315 million years old. About 4 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Sandstone, shale. Age: Early Cretaceous, 100 to 145 million years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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.
Mondamin has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 12° in January. About 28 inches of rain fall in a normal year.
On November 14 Mondamin normally reaches 50° and falls to 27°. The record high is 75°, in 2025; the record low 2°, in 2014. The most rain on this date, 0.11 in, fell in 2008.
Normals 1991–2020 and records since 1996 at Tekamah Municipal Airport, 9 miles west-northwest. NOAA, through RCC-ACIS.
