The Fairwood 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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80° on Nov. 16, 1993, the hottest reading for this week of the year since 1941. Next is 78° in 1985.
Fairwood’s center stands about 190 ft above sea level. Within three miles the land runs from 110 ft to 240 ft, a difference of 130 ft: gently rolling country.
Under the town center the state geologic map shows Chesapeake Group; Calvert Formation (sand, clay), from the Miocene, 5.3 to 23 million years old.
The section below crosses 7 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: Cretaceous, 66 to 145 million years old. About 9 mi of the line.
Sand. Age: Paleocene, 56 to 66 million years old. About 7 mi of the line.
Sand, clay. Age: Miocene, 5.3 to 23 million years old. About 5 mi of the line.
Sand. Age: Cretaceous, 66 to 145 million years old. About 1 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 1 mi of the line.
Sand. Age: Eocene, 34 to 56 million years old. About 0.8 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 Fairwood reaches Chesapeake Bay and the Atlantic Ocean by way of the Northeast Branch Western Branch Patuxent, the Western Branch Patuxent and the Patuxent: about 60 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fairwood; river miles along the main stem, rounded.
Fairwood has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 25° in January. A normal year brings about 16 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Fairwood normally reaches 57° and falls to 37°. The record high is 77°, in 1955; the record low 18°, in 1986. The most rain on this date, 0.98 in, fell in 1972.
Normals 1991–2020 and records since 1941 at Beltsville, 10 miles west-northwest. NOAA, through RCC-ACIS.
