The Jennings 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. 11, 1986, the hottest reading for this week of the year since 1950. Next is 86° in 1991.
Jennings’s center stands about 160 ft above sea level. Within three miles the land runs from 100 ft to 200 ft, a difference of 100 ft: gently rolling country.
Under the town center the state geologic map shows Hawthorn Group, Statenville Formation (sand), from the Middle Miocene to Late Miocene, 5.3 to 16 million years old.
The section below crosses 4 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: Middle Miocene to Late Miocene, 5.3 to 16 million years old. About 12 mi of the line.
Clay, sand, gravel. Age: Tertiary Neogene, 2.6 to 23 million years old. About 8 mi of the line.
Limestone, dolostone. Age: Oligocene, 23 to 34 million years old. About 2 mi of the line.
Dolostone, sand, clay. Age: Miocene, 5.3 to 23 million years old. About 2 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 Jennings reaches the Gulf of America by way of Turket Creek, the Alapaha and the Suwannee: about 160 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Jennings; river miles along the main stem, rounded.
Jennings has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 38° in January. About 53 inches of rain fall in a normal year.
On November 14 Jennings normally reaches 72° and falls to 46°. The record high is 85°, in 1985; the record low 27°, in 1984. The most rain on this date, 1.25 in, fell in 1957.
Normals 1991–2020 and records since 1950 at Jasper, 11 miles southeast. NOAA, through RCC-ACIS.
