The Port O'Connor 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
Showers likely; cooler
Mostly sunny
Partly cloudy; warmer
Partly cloudy
Partly cloudy
30° on Nov. 14, 2018, the coldest reading for this week of the year since 1957. Next is 32° in 1970.
Port O'Connor’s center stands about 8 ft above sea level. Within three miles the land runs from 0 ft to 10 ft, a difference of 10 ft: nearly flat ground. Open water lies within three miles.
Under the town center the state geologic map shows Barrier island deposits (sand), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 2 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.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 12 mi of the line.
Sand. Age: Holocene, less than 12,000 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.
Rain that falls on Port O'Connor runs straight into the Gulf of America.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Port O'Connor; river miles along the main stem, rounded.
Port O'Connor has a humid subtropical climate. Summer afternoons average 92° in August; winter nights fall to about 46° in January. About 41 inches of rain fall in a normal year.
On November 14 Port O'Connor normally reaches 74° and falls to 55°. The record high is 88°, in 1964; the record low 30°, in 2018. The most rain on this date, 0.52 in, fell in 2023.
Normals 1991–2020 and records since 1957 at Point Comfort, 17 miles north-northwest. NOAA, through RCC-ACIS.
