The Cedarville 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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3.96 inches of rain fell in two days, the most for this week of the year since records began in 1927. The next wettest, 3.65 inches, fell in 2009.
Cedarville’s center stands about 220 ft above sea level. Within three miles the land runs from 140 ft to 260 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Upland Deposits (Western Shore) (gravel, sand), from the Pleistocene, less than 2.6 million years old.
The section below crosses 3 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.
Gravel, sand. Age: Pleistocene, less than 2.6 million years old. About 15 mi of the line.
Sand, clay. Age: Miocene, 5.3 to 23 million years old. About 5 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 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.
A raindrop that lands in Cedarville reaches Chesapeake Bay and the Atlantic Ocean by way of Zekiah Swamp Run, the Wicomico and the Potomac: about 75 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cedarville; river miles along the main stem, rounded.
Cedarville has a humid subtropical climate. Summer afternoons average 85° in July; winter nights fall to about 25° in January. A normal year brings about 15 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Cedarville normally reaches 58° and falls to 36°. The record high is 79°, in 1985; the record low 17°, in 1986. The most rain on this date, 1.11 in, fell in 1997.
Normals 1991–2020 and records since 1927 at Mechanicsville 5 NE, 12 miles south-southeast, 120 ft lower. NOAA, through RCC-ACIS.
