The Black Hammock 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.
Mostly sunny
Sunny; warmer
Partly cloudy
Chance of showers
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Chance of showers
Partly cloudy
36° on Nov. 11, 2025, the coldest reading for this week of the year since 1945. Next is 40° in 1963.
Black Hammock’s center stands about 40 ft above sea level. Within three miles the land runs from 0 ft to 70 ft, a difference of 70 ft: gently rolling country. Open water lies within three miles.
Under the town center the state geologic map shows Shelly sediments of Plio-Pleistocene age (sand, limestone), from the Late Pliocene to Pleistocene, less than 3.6 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: Pleistocene to Holocene, less than 2.6 million years old. About 13 mi of the line.
Sand, limestone. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 4 mi of the line.
Sand. Age: Holocene, less than 12,000 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 Black Hammock reaches the St. Johns River and the Atlantic Ocean by way of Jesup, Lake, Monroe, Lake, Blue Creek and Trout Creek: about 180 river miles.
Lakes on the way: George, Lake, Monroe, Lake and Jesup, Lake.
100 miles of the trip are on Trout Creek.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Black Hammock; river miles along the main stem, rounded.
Black Hammock has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 50° in January. About 50 inches of rain fall in a normal year.
On November 14 Black Hammock normally reaches 78° and falls to 58°. The record high is 88°, in 2008; the record low 40°, in 1963. The most rain on this date, 1.77 in, fell in 1954.
Normals 1991–2020 and records since 1945 at Orlando Sanford Airport, 6 miles northwest. NOAA, through RCC-ACIS.
