The Grenada 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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16° on Nov. 13, 2019, the coldest reading for this week of the year since 1948. Next is 20° in 1997.
Grenada’s center stands about 220 ft above sea level. Within three miles the land runs from 170 ft to 380 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Little Mountain, about 510 ft, 5 miles east-northeast.
Under the town center the state geologic map shows Tallahatta formation and Neshoba sand (claystone, clay), from the Eocene, 34 to 56 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 59×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Claystone, clay. Age: Eocene, 34 to 56 million years old. About 9 mi of the line.
Clay, sand. Age: Eocene, 34 to 56 million years old. About 9 mi of the line.
Sand, clay. Age: Eocene, 34 to 56 million years old. About 4 mi of the line.
Sand, clay. Age: Eocene, 34 to 56 million years old. About 2 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 0.1 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 Grenada reaches the Gulf of America by way of the Yalobusha, the Yazoo and the Mississippi: about 670 river miles.
450 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Grenada; river miles along the main stem, rounded.
Grenada has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 35° in January. About 52 inches of rain fall in a normal year.
On November 14 Grenada normally reaches 66° and falls to 42°. The record high is 86°, in 1955; the record low 21°, in 2014. The most rain on this date, 2.67 in, fell in 1998.
Normals 1991–2020 and records since 1948 from the Greenwood Area threaded record (Greenwood Leflore Airport, 25 miles southwest). NOAA, through RCC-ACIS.
