The Campo 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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91° on Nov. 11, 2025, the hottest reading for this week of the year since 1948. Next is 90° in 1999.
Campo’s center stands about 2,610 ft above sea level. Within three miles the land runs from 2,330 ft to 3,290 ft, a difference of 960 ft: steep hill country. The highest named summit within 15 miles is Sheephead Mountain, about 5,860 ft, 15 miles north.
Under the town center the state geologic map shows Mesozoic granitic rocks, unit 2 (Peninsular Ranges) (tonalite), from the Middle Jurassic to Late Cretaceous, 66 to 175 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.
Tonalite. Age: Middle Jurassic to Late Cretaceous, 66 to 175 million years old. About 14 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 Campo reaches the Pacific Ocean by way of Campo Creek, Tecate Creek and the Tijuana: about 55 river miles.
Often dry. About 50% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Campo; river miles along the main stem, rounded.
Campo has a hot-summer Mediterranean climate. Summer afternoons average 95° in August; winter nights fall to about 33° in December. About 16 inches of rain fall in a normal year.
On November 14 Campo normally reaches 72° and falls to 37°. The record high is 85°, in 2016; the record low 21°, in 2000. The most rain on this date, 0.47 in, fell in 1952.
Normals 1991–2020 and records since 1948 at Campo, here. NOAA, through RCC-ACIS.
