The Wedderburn 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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5.54 inches of rain fell in two days, the most for this week of the year since records began in 1948. The next wettest, 3.97 inches, fell in 2007.
Wedderburn’s center stands about 470 ft above sea level. Within three miles the land runs from 0 ft to 1,330 ft, a difference of 1,330 ft: steep hill country. Open water lies within three miles. The highest named summit within 15 miles is Snow Camp Mountain, about 4,170 ft, 14 miles east-southeast.
Under the town center the state geologic map shows Otter Point Formation of Dott (1971) and related rocks (graywacke, mudstone), from the Late Jurassic, 145 to 153 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 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Graywacke, mudstone. Age: Late Jurassic, 145 to 153 million years old. About 5 mi of the line.
Graywacke, mudstone. Age: Late Jurassic to Early Cretaceous, 129 to 153 million years old. About 4 mi of the line.
Peridotite, serpentinite. Age: Paleozoic to Jurassic, 145 to 542 million years old. About 2 mi of the line.
Pelitic-schist. Age: Paleozoic to Cretaceous, 66 to 542 million years old. About 2 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 0.6 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 Wedderburn reaches the Pacific Ocean by way of the Rogue: about 1 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Wedderburn; river miles along the main stem, rounded.
Wedderburn has a warm-summer Mediterranean climate. Summer afternoons average 69° in September; winter nights fall to about 42° in February. About 75 inches of rain fall in a normal year.
On November 14 Wedderburn normally reaches 57° and falls to 45°. The record high is 69°, in 2008; the record low 29°, in 1978. The most rain on this date, 1.92 in, fell in 1963.
Normals 1991–2020 and records since 1948 at Gold Beach Rs, 2 miles south, 400 ft lower. NOAA, through RCC-ACIS.
