The Duck Key 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.
Partly cloudy
Mostly sunny; warmer
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Showers likely
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Chance of showers
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6.68 inches of rain fell in two days, the most for this week of the year since records began in 1950. The next wettest, 4.58 inches, fell in 1954.
Duck Key’s center stands about 9 ft above sea level. Within three miles the land runs from 0 ft to 20 ft, a difference of 20 ft: nearly flat ground. Open water lies within three miles.
Under the town center the state geologic map shows Key Largo Limestone, from the Pleistocene, less than 2.6 million years old.
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.
Limestone. Age: Pleistocene, less than 2.6 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.
Duck Key has a tropical savanna climate. Summer afternoons average 92° in August; winter nights fall to about 64° in January. About 40 inches of rain fall in a normal year.
On November 14 Duck Key normally reaches 81° and falls to 71°. The record high is 88°, in 1992; the record low 53°, in 1963. The most rain on this date, 4.58 in, fell in 1954.
Normals 1991–2020 and records since 1950 from the Marathon Area threaded record (Marathon Airport, 9 miles west-southwest). NOAA, through RCC-ACIS.
