The Floydada 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.
5° on Nov. 14, 1976, the coldest reading for this week of the year since 1911. Next is 6° in 1959.
Floydada’s center stands about 3,190 ft above sea level. Within three miles the land runs from 3,150 ft to 3,210 ft, a difference of 60 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 49×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand. Age: Pleistocene, less than 2.6 million years old. About 22 mi of the line.
Sand. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Quaternary, less than 2.6 million years old. About 0.5 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 Floydada reaches the Gulf of America by way of the White River, the Salt Fork Brazos and the Brazos: about 1,120 river miles.
Lakes on the way: Possum Kingdom Lake and Lake Granbury.
550 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Floydada; river miles along the main stem, rounded.
Floydada has a cold semi-arid climate. Summer afternoons average 92° in July; winter nights fall to about 25° in January. About 20 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Floydada normally reaches 62° and falls to 35°. The record high is 84°, in 2025; the record low 5°, in 1976. The most rain on this date, 0.74 in, fell in 1947.
Normals 1991–2020 and records since 1911 at Floydada, here. NOAA, through RCC-ACIS.