The Shady Hollow 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.
Chance of showers
Showers likely
Chance of showers
Mostly sunny; warmer
Mostly cloudy
Partly cloudy
Partly cloudy
24° on Nov. 14, 2018, the coldest reading for this week of the year since 1942. Next is 25° in 2014.
Shady Hollow’s center stands about 770 ft above sea level. Within three miles the land runs from 660 ft to 940 ft, a difference of 280 ft: rolling country. The highest named summit within 15 miles is Lone Man Mountain, about 1,390 ft, 15 miles west-southwest.
Under the town center the state geologic map shows Edwards Limestone, from the Early Cretaceous, 100 to 113 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Early Cretaceous, 100 to 113 million years old. About 8 mi of the line.
Limestone, marlstone. Age: Early Cretaceous, 100 to 145 million years old. About 4 mi of the line.
Gravel. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Marlstone, chalk. Age: Late Cretaceous, 66 to 100 million years old. About 4 mi of the line.
Siltstone-mudstone. Age: Late Cretaceous, 66 to 100 million years old. About 2 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. 1 smaller unit along the line are not listed.
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 Shady Hollow reaches the Gulf of America by way of Slaughter Creek, Onion Creek and the Colorado: about 300 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Shady Hollow; river miles along the main stem, rounded.
Shady Hollow has a humid subtropical climate. Summer afternoons average 97° in August; winter nights fall to about 38° in January. About 36 inches of rain fall in a normal year.
On November 14 Shady Hollow normally reaches 72° and falls to 47°. The record high is 89°, in 2020; the record low 24°, in 2018. The most rain on this date, 0.87 in, fell in 1998.
Normals 1991–2020 and records since 1942 from the Austin-Bergstrom Airport Area threaded record (Austin-Camp Mabry, 12 miles north-northeast, 100 ft lower). NOAA, through RCC-ACIS.
