The Dalton 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 cloudy
Partly cloudy; warmer
Mostly sunny
Partly cloudy
Mostly sunny
Partly cloudy
Showers likely
−15° on Nov. 14, 1940, the coldest reading for this week of the year since 1908. Next is −8° in 1986.
Dalton’s center stands about 4,260 ft above sea level. Within three miles the land runs from 4,090 ft to 4,310 ft, a difference of 220 ft: rolling country.
Under the town center the state geologic map shows Ogallala Group or Formation (siltstone-mudstone, conglomerate-sandstone), from the Miocene, 5.3 to 23 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 25×. 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 23 mi of the line.
Clay. Age: Early Oligocene to Late Oligocene, 23 to 34 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.
Dalton has a cold semi-arid climate. Summer afternoons average 88° in July; winter nights fall to about 17° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 18 inches of water.
On November 14 Dalton normally reaches 52° and falls to 25°. The record high is 78°, in 1928; the record low −15°, in 1940. The most rain on this date, 0.20 in, fell in 1926.
Normals 1991–2020 and records since 1908 at Sidney 6 NNW, 13 miles south-southwest. NOAA, through RCC-ACIS.
