The Custer 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.
Showers likely
Chance of showers
Chance of showers
Mostly sunny
Mostly cloudy
Partly cloudy
Partly cloudy
4.67 inches of rain fell in two days, the most for this week of the year since records began in 1949. The next wettest, 2.12 inches, fell in 2003.
Custer’s center stands about 40 ft above sea level. Within three miles the land runs from 30 ft to 360 ft, a difference of 330 ft: rolling country. The highest named summit within 15 miles is Toad Mountain, about 1,060 ft, 14 miles southeast.
Under the town center the state geologic map shows Younger glacial drift (fine-detrital, coarse-detrital), from the Pleistocene, less than 2.6 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 42×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 9 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Silt, sand. Age: Holocene, less than 12,000 years old. About 2 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 Custer reaches the Pacific Ocean by way of California Creek: about 6 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Custer; river miles along the main stem, rounded.
Custer has a warm-summer Mediterranean climate. Summer afternoons average 73° in July; winter nights fall to about 34° in January. About 35 inches of rain fall in a normal year.
On November 14 Custer normally reaches 51° and falls to 38°. The record high is 63°, in 2004; the record low 9°, in 1955. The most rain on this date, 2.78 in, fell in 2021.
Normals 1991–2020 and records since 1949 at Bellingham International Airport, 9 miles south-southeast, 110 ft higher. NOAA, through RCC-ACIS.
