The St. George Island 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.
35° on Nov. 17, 2007, the coldest reading for this week of the year since 1995. Next is 36° in 1997.
St. George Island’s center stands about 13 ft above sea level. Within three miles the land runs from 0 ft to 20 ft, a difference of 20 ft: nearly flat ground. 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.
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: Holocene, less than 12,000 years old. About 11 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.
St. George Island 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, 10 miles west-northwest. NOAA, through RCC-ACIS.