The North River Shores 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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90° on Nov. 11, 2015, the hottest reading for this week of the year since 1935. Next is 89° in 1948.
North River Shores’s center stands about 12 ft above sea level. Within three miles the land runs from 0 ft to 30 ft, a difference of 30 ft: nearly flat ground. Open water lies within three miles.
Under the town center the state geologic map shows Anastasia Formation (sand, limestone), from the Pleistocene, 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, limestone. Age: Pleistocene, less than 2.6 million years old. About 12 mi of the line.
Sand, clay. Age: Pleistocene to Holocene, less than 2.6 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 North River Shores reaches the Atlantic Ocean by way of the North Fork Saint Lucie and the Saint Lucie: about 10 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of North River Shores; river miles along the main stem, rounded.
North River Shores has a tropical rainforest climate. Summer afternoons average 91° in July; winter nights fall to about 56° in January. About 63 inches of rain fall in a normal year.
On November 14 North River Shores normally reaches 80° and falls to 65°. The record high is 88°, in 1948; the record low 43°, in 1975. The most rain on this date, 2.75 in, fell in 1954.
Normals 1991–2020 and records since 1935 at Stuart, 3 miles southeast. NOAA, through RCC-ACIS.
