The Fleming Island 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
Partly cloudy
Chance of showers
Partly cloudy
Partly cloudy
95° on Nov. 12, 2019, the hottest reading for this week of the year since 1945. Next is 89° in 1986.
Fleming Island’s center stands about 20 ft above sea level. Within three miles the land runs from 0 ft to 50 ft, a difference of 50 ft: nearly flat ground. Open water lies within three miles.
Under the town center the state geologic map shows Undifferentiated sediments (sand, clay), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 2 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 8 mi of the line.
Sand. Age: Late Pliocene, 2.6 to 3.6 million years old. About 7 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 Fleming Island reaches the St. Johns River and the Atlantic Ocean by way of Peters Branch: about 45 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fleming Island; river miles along the main stem, rounded.
Fleming Island has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 47° in January. About 48 inches of rain fall in a normal year.
On November 14 Fleming Island normally reaches 74° and falls to 56°. The record high is 86°, in 1993; the record low 33°, in 1984. The most rain on this date, 3.33 in, fell in 2001.
Normals 1991–2020 and records since 1945 at Jacksonville Nas, 10 miles north-northeast. NOAA, through RCC-ACIS.
