The Tallahassee 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.
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22° on Nov. 16, 1940, the coldest reading for this week of the year since 1892. Next is 22° in 1969.
Tallahassee’s center stands about 210 ft above sea level. Within three miles the land runs from 50 ft to 260 ft, a difference of 210 ft: rolling country.
Under the town center the state geologic map shows Hawthorn Group, Torreya Formation (sandstone, limestone), from the Middle Miocene, 12 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.
Sandstone, limestone. Age: Middle Miocene, 12 to 16 million years old. About 8 mi of the line.
Sand, clay, gravel. Age: Late Pliocene, 2.6 to 3.6 million years old. About 7 mi of the line.
Limestone. Age: Early Miocene, 16 to 23 million years old. About 5 mi of the line.
Sand, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 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 Tallahassee reaches the Gulf of America by way of the Saint Marks: about 45 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tallahassee; river miles along the main stem, rounded.
Tallahassee has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 40° in January. About 59 inches of rain fall in a normal year.
On November 14 Tallahassee normally reaches 73° and falls to 48°. The record high is 85°, in 2005; the record low 26°, in 1977. The most rain on this date, 2.99 in, fell in 2008.
Normals 1991–2020 and records since 1892 from the Tallahassee Area threaded record (Tallahassee Regional Airport, 5 miles southwest, 150 ft lower). NOAA, through RCC-ACIS.
