The Barberton 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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71° on Nov. 13, 1999, the hottest reading for this week of the year since 1940. Next is 68° in 1976.
Barberton’s center stands about 250 ft above sea level. Within three miles the land runs from 110 ft to 310 ft, a difference of 200 ft: gently rolling country. The highest named summit within 15 miles is Larch Mountain, about 3,520 ft, 15 miles east.
Under the town center the state geologic map shows Quaternary nonmarine deposits (sandstone, clay, volcanic), from the Pleistocene, less than 2.6 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, clay, volcanic. Age: Pleistocene, less than 2.6 million years old. About 10 mi of the line.
Basalt, basaltic-andesite. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 4 mi of the line.
Silt, sand. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Conglomerate. Age: Pliocene, 2.6 to 5.3 million years old. About 2 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Basalt. Age: Miocene, 5.3 to 23 million years old. About 0.7 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 Barberton reaches the Pacific Ocean by way of Salmon Creek and the Columbia: about 100 river miles.
85 miles of the trip are on the Columbia.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Barberton; river miles along the main stem, rounded.
Barberton has a warm-summer Mediterranean climate. Summer afternoons average 82° in July; winter nights fall to about 36° in January. About 37 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Barberton normally reaches 54° and falls to 41°. The record high is 67°, in 2001; the record low 15°, in 1955. The most rain on this date, 1.28 in, fell in 1948.
Normals 1991–2020 and records since 1940 from the Portland Area threaded record (Portland International Airport, 7 miles south, 230 ft lower). NOAA, through RCC-ACIS.
