The Marietta 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
Partly cloudy; warmer
Sunny
Sunny
Mostly sunny
Mostly sunny
Mostly sunny
17° on Nov. 15, 1969, the coldest reading for this week of the year since 1930. Next is 17° in 2019.
Marietta’s center stands about 360 ft above sea level. Within three miles the land runs from 300 ft to 470 ft, a difference of 170 ft: gently rolling country. The highest named summit within 15 miles is Geeville Mountain, about 720 ft, 14 miles west-northwest.
Under the town center the state geologic map shows Coffee sand (sand, clay), from the Late Cretaceous, 66 to 100 million 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: Late Cretaceous, 66 to 100 million years old. About 13 mi of the line.
Sand, clay. Age: Late Cretaceous, 66 to 100 million years old. About 8 mi of the line.
Sand. Age: Late Cretaceous, 66 to 100 million years old. About 3 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 Marietta reaches Mobile Bay and the Gulf of America by way of Granny Creek, Big Brown Creek, the Tombigbee and the Mobile: about 460 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Marietta; river miles along the main stem, rounded.
Marietta has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 34° in January. About 58 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Marietta normally reaches 65° and falls to 42°. The record high is 85°, in 1955; the record low 21°, in 2014. The most rain on this date, 2.55 in, fell in 1930.
Normals 1991–2020 and records since 1930 from the Tupelo Area threaded record (Tupelo, 22 miles southwest). NOAA, through RCC-ACIS.
