The Port St. Joe 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.
Sunny
Mostly sunny; warmer
Mostly cloudy
Mostly sunny
Mostly sunny
Partly cloudy
Partly cloudy
35° on Nov. 17, 2007, the coldest reading for this week of the year since 1995. Next is 36° in 1997.
Port St. Joe’s center stands about 9 ft above sea level. Within three miles the land runs from 0 ft to 60 ft, a difference of 60 ft: gently rolling country. Open water lies within three miles.
Under the town center the state geologic map shows Holocene sediments (sand), from the Holocene, less than 12,000 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 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, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 6 mi of the line.
Sand, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 6 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 1.0 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 St. Joe runs straight into the Gulf of America.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Port St. Joe; river miles along the main stem, rounded.
Port St. Joe has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 44° in January. About 58 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1995 at Apalachicola Airport, 18 miles east-southeast. NOAA, through RCC-ACIS.
