The Dayton 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.
75° on Nov. 13, 1990, the hottest reading for this week of the year since 1893. Next is 75° in 1995.
Dayton’s center stands about 4,370 ft above sea level. Within three miles the land runs from 4,310 ft to 5,700 ft, a difference of 1,390 ft: steep hill country. The highest named summit within 15 miles is Lyon Peak, about 8,720 ft, 10 miles southeast.
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 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Andesite, dacite. Age: Miocene, 5.3 to 23 million years old. About 5 mi of the line.
Felsic-volcanic. Age: Oligocene to Early Miocene, 16 to 34 million years old. About 5 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 5 mi of the line.
Andesite, basalt. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 4 mi of the line.
Coarse-detrital, fine-detrital. Age: Pliocene to Pleistocene, less than 5.3 million years old. About 4 mi of the line.
Granitic, granodiorite, quartz-monzonite. Age: Jurassic to Miocene, 5.3 to 202 million years old. About 0.8 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.
A raindrop that lands in Dayton reaches the Great Basin by way of the Carson: about 95 river miles. The Great Basin has no outlet to the sea: the water leaves only by evaporating or soaking into the ground.
Lake on the way: Lahontan Reservoir.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Dayton; river miles along the main stem, rounded.
Dayton has a cold semi-arid climate. Summer afternoons average 94° in July; winter nights fall to about 26° in January. A normal year brings about 21 inches of snow; with the rain, that comes to about 7 inches of water.
On November 14 Dayton normally reaches 57° and falls to 31°. The record high is 74°, in 2016; the record low 4°, in 1985. The most rain on this date, 0.57 in, fell in 1909.
Normals 1991–2020 and records since 1893 from the Reno Area threaded record (Reno Airport, 21 miles north-northwest). NOAA, through RCC-ACIS.