The Comptche 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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29° on Nov. 11, 1978, the coldest reading for this week of the year since 1895. Next is 30° in 1938.
Comptche’s center stands about 230 ft above sea level. Within three miles the land runs from 220 ft to 1,460 ft, a difference of 1,240 ft: steep hill country. The highest named summit within 15 miles is Irene Peak, about 2,820 ft, 12 miles east-northeast.
Under the town center the state geologic map shows Tertiary-Cretaceous Coastal Belt Rocks (sandstone, mudstone), from the Late Cretaceous to Pliocene, 2.6 to 100 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 8×. 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, mudstone. Age: Late Cretaceous to Pliocene, 2.6 to 100 million years old. About 23 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 Comptche reaches the Pacific Ocean by way of the Albion: about 14 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Comptche; river miles along the main stem, rounded.
Comptche has a warm-summer Mediterranean climate. Summer afternoons average 65° in July; winter nights fall to about 40° in January. About 43 inches of rain fall in a normal year.
On November 14 Comptche normally reaches 56° and falls to 43°. The record high is 71°, in 1969; the record low 31°, in 1964. The most rain on this date, 2.25 in, fell in 1952.
Normals 1991–2020 and records since 1895 at Fort Bragg 5 N, 19 miles north-northwest, 110 ft lower. NOAA, through RCC-ACIS.
