The Stamford 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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86° on Nov. 13, 1999, the hottest reading for this week of the year since 1893. Next is 85° in 1896.
Stamford’s center stands about 2,050 ft above sea level. Within three miles the land runs from 2,000 ft to 2,200 ft, a difference of 200 ft: rolling country. The highest named summit within 15 miles is Sappa Peak, about 2,230 ft, 5 miles southeast.
Under the town center the state geologic map shows Niobrara Formation (limestone, shale), from the Late Cretaceous, 66 to 100 million years old.
The section below crosses 4 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.
Siltstone-mudstone, conglomerate-sandstone. Age: Miocene, 5.3 to 23 million years old. About 12 mi of the line.
Shale. Age: Late Cretaceous, 66 to 100 million years old. About 5 mi of the line.
Limestone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 4 mi of the line.
Silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 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 Stamford reaches the Gulf of America by way of Sappa Creek, the Republican, the Kansas, the Missouri and the Mississippi: about 1,970 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 Stamford; river miles along the main stem, rounded.
Stamford has a hot-summer humid continental climate. Summer afternoons average 92° in July; winter nights fall to about 12° in January. A normal year brings about 21 inches of snow; with the rain, that comes to about 25 inches of water.
On November 14 Stamford normally reaches 56° and falls to 23°. The record high is 81°, in 1894; the record low −7°, in 1940. The most rain on this date, 1.20 in, fell in 1926.
Normals 1991–2020 and records since 1893 at Beaver City, 12 miles west. NOAA, through RCC-ACIS.
