The Los Fresnos 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.
25° on Nov. 14, 2007, the coldest reading for this week of the year since 1913. Next is 29° in 1955.
Los Fresnos’s center stands about 30 ft above sea level. Within three miles the land runs from 10 ft to 40 ft, a difference of 30 ft: nearly flat ground.
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 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt, sand. Age: Holocene, less than 12,000 years old. About 12 mi of the line.
Silt, clay. Age: Holocene, less than 12,000 years old. About 9 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 3 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.
Los Fresnos has a warm-summer Mediterranean climate. Summer afternoons average 69° in July; winter nights fall to about 42° in January. About 78 inches of rain fall in a normal year.
On November 14 Los Fresnos normally reaches 58° and falls to 45°. The record high is 68°, in 1969; the record low 25°, in 2007. The most rain on this date, 2.62 in, fell in 1934.
Normals 1991–2020 and records since 1913 from the Brookings Area threaded record (Brownsville S Padre Island International Airport, 11 miles south-southeast). NOAA, through RCC-ACIS.