The Geneva 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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87° on Nov. 17, 2020, the hottest reading for this week of the year since 1976. Next is 85° in 1985.
Geneva’s center stands about 100 ft above sea level. Within three miles the land runs from 80 ft to 220 ft, a difference of 140 ft: gently rolling country. The highest named summit within 15 miles is Hudson Hill, about 330 ft, 13 miles south-southwest.
Under the town center the state geologic map shows Alluvial, coastal and low terrace deposits (sand), from the Holocene, less than 12,000 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 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.
Clay. Age: Eocene to Miocene, 5.3 to 56 million years old. About 8 mi of the line.
Sand, clay. Age: Middle Miocene to Early Pliocene, 3.6 to 16 million years old. About 5 mi of the line.
Limestone. Age: Late Eocene, 34 to 38 million years old. About 4 mi of the line.
Clay, limestone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Sand. Age: Holocene, less than 12,000 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 Geneva reaches Choctawhatchee Bay and the Gulf of America by way of the Pea and the Choctawhatchee: about 90 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Geneva; river miles along the main stem, rounded.
Geneva has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 35° in January. About 62 inches of rain fall in a normal year.
On November 14 Geneva normally reaches 71° and falls to 42°. The record high is 83°, in 1993; the record low 22°, in 1984. The most rain on this date, 1.00 in, fell in 2008.
Normals 1991–2020 and records since 1976 at Geneva No 2, here. NOAA, through RCC-ACIS.
