The Grenelefe 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
Sunny; warmer
Partly cloudy
Partly cloudy
Mostly sunny
Mostly sunny
Partly cloudy
91° on Nov. 13, 1986, the hottest reading for this week of the year since 1941. Next is 90° in 1946.
Grenelefe’s center stands about 100 ft above sea level. Within three miles the land runs from 60 ft to 170 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Iron Mountain, about 330 ft, 8 miles south-southwest.
Under the town center the state geologic map shows Dunes (sand), from the Late Pliocene to Pleistocene, less than 3.6 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.
Sand. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 10 mi of the line.
Sand, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 8 mi of the line.
Sand. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 5 mi of the line.
Sand. Age: Late Pliocene, 2.6 to 3.6 million years old. About 2 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.
Grenelefe has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 52° in January. About 46 inches of rain fall in a normal year.
On November 14 Grenelefe normally reaches 80° and falls to 60°. The record high is 90°, in 1956; the record low 35°, in 1968. The most rain on this date, 2.00 in, fell in 1969.
Normals 1991–2020 and records since 1941 from the Winter Haven Area threaded record (Winter Haven Gilbert Airport, 13 miles west). NOAA, through RCC-ACIS.
