The Trenton 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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Chance of showers; warmer
83° on Nov. 15, 2025, the hottest reading for this week of the year since 1919. Next is 81° in 1999.
Trenton’s center stands about 2,680 ft above sea level. Within three miles the land runs from 2,640 ft to 2,880 ft, a difference of 240 ft: rolling country.
Under the town center the state geologic map shows Pierre Shale, from the Late Cretaceous, 66 to 100 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 43×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone-mudstone, conglomerate-sandstone. Age: Miocene, 5.3 to 23 million years old. About 20 mi of the line.
Shale. Age: Late Cretaceous, 66 to 100 million years old. About 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.
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 Trenton reaches the Gulf of America by way of Bush Creek, the Republican, the Kansas, the Missouri and the Mississippi: about 2,080 river miles.
Lake on the way: Harlan County Lake.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Trenton; river miles along the main stem, rounded.
Trenton has a hot-summer humid continental climate. Summer afternoons average 91° in July; winter nights fall to about 15° in January. A normal year brings about 22 inches of snow; with the rain, that comes to about 20 inches of water.
On November 14 Trenton normally reaches 54° and falls to 26°. The record high is 81°, in 1999; the record low −3°, in 1959. The most rain on this date, 0.12 in, fell in 1993.
Normals 1991–2020 and records since 1919 at Trenton Dam 1 N, 3 miles west-northwest, 130 ft higher. NOAA, through RCC-ACIS.
