The Chattahoochee 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
Mostly sunny
Mostly sunny
86° on Nov. 12, 2020, the hottest reading for this week of the year since 1968. Next is 85° in 1986.
Chattahoochee’s center stands about 240 ft above sea level. Within three miles the land runs from 40 ft to 270 ft, a difference of 230 ft: rolling country.
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. Age: Late Pliocene, 2.6 to 3.6 million years old. About 8 mi of the line.
Clay. Age: Oligocene, 23 to 34 million years old. About 6 mi of the line.
Sandstone, limestone. Age: Middle Miocene, 12 to 16 million years old. About 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 Chattahoochee reaches the Gulf of America by way of North Mosquito Creek, Mosquito Creek and the Apalachicola: about 110 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Chattahoochee; river miles along the main stem, rounded.
Chattahoochee has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 40° in January. About 60 inches of rain fall in a normal year.
On November 14 Chattahoochee normally reaches 73° and falls to 47°. The record high is 81°, in 2005; the record low 27°, in 2011. The most rain on this date, 2.95 in, fell in 2008.
Normals 1991–2020 and records since 1968 at Quincy 3 SSW, 18 miles southeast. NOAA, through RCC-ACIS.
