The Sandy Oaks 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.
Mostly cloudy
Showers likely
Mostly cloudy; cooler
Partly cloudy
Mostly cloudy
Chance of showers
Partly cloudy
25° on Nov. 14, 2018, the coldest reading for this week of the year since 1941. Next is 30° in 2008.
Sandy Oaks’s center stands about 650 ft above sea level. Within three miles the land runs from 470 ft to 660 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Carizzo Sand (sandstone), from the Eocene, 34 to 56 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 51×. 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. Age: Eocene, 34 to 56 million years old. About 19 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 5 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 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 Sandy Oaks reaches the Gulf of America by way of the San Antonio, the Guadalupe and the South Guadalupe: about 220 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Sandy Oaks; river miles along the main stem, rounded.
Sandy Oaks has a humid subtropical climate. Summer afternoons average 97° in August; winter nights fall to about 42° in January. About 30 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1941 at San Antonio Stinson Municipal Airport, 12 miles north-northwest. NOAA, through RCC-ACIS.
