The Tryon 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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−7° on Nov. 16, 2014, the coldest reading for this week of the year since 1989. Next is −3° in 2000.
Tryon’s center stands about 3,260 ft above sea level. Within three miles the land runs from 3,230 ft to 3,390 ft, a difference of 160 ft: gently 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.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 49×. 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 24 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.
Tryon has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 12° in January. A normal year brings about 37 inches of snow; with the rain, that comes to about 24 inches of water.
On November 14 Tryon normally reaches 51° and falls to 23°. The record high is 80°, in 1999; the record low −2°, in 2014. The most rain on this date, 0.04 in, fell in 1993.
Normals 1991–2020 and records since 1989 at Stapleton 5 W, 20 miles east-southeast, 240 ft lower. NOAA, through RCC-ACIS.
