The Drain 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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Partly cloudy
Chance of showers
74° on Nov. 12, 1981, the hottest reading for this week of the year since 1902. Next is 74° in 1999.
Drain’s center stands about 300 ft above sea level. Within three miles the land runs from 280 ft to 1,520 ft, a difference of 1,240 ft: steep hill country. The highest named summit within 15 miles is Harness Mountain, about 3,320 ft, 15 miles southeast.
Under the town center the state geologic map shows Tyee Formation (sandstone), from the Middle Eocene, 38 to 48 million years old.
The section below crosses 5 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. Age: Middle Eocene, 38 to 48 million years old. About 15 mi of the line.
Sandstone, siltstone. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 5 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Basalt. Age: Paleocene to Middle Eocene, 38 to 66 million years old. About 2 mi of the line.
Mudstone. Age: Middle Eocene to Late Eocene, 34 to 48 million years old. About 0.4 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 Drain reaches the Pacific Ocean by way of Pass Creek, Elk Creek and the Umpqua: about 70 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Drain; river miles along the main stem, rounded.
Drain has a warm-summer Mediterranean climate. Summer afternoons average 86° in August; winter nights fall to about 35° in January. About 48 inches of rain fall in a normal year.
On November 14 Drain normally reaches 56° and falls to 39°. The record high is 74°, in 1999; the record low 16°, in 1978. The most rain on this date, 2.35 in, fell in 1941.
Normals 1991–2020 and records since 1902 at Drain, here. NOAA, through RCC-ACIS.
