The Hudson 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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5.06 inches of rain fell in two days, the most for this week of the year since records began in 1871. The next wettest, 2.94 inches, fell in 1918.
Hudson’s center stands about 1,260 ft above sea level. Within three miles the land runs from 1,130 ft to 1,610 ft, a difference of 480 ft: hilly country. The highest named summit within 15 miles is High Eagle, about 2,780 ft, 14 miles north-northwest.
Under the town center the state geologic map shows Mica Schist (mica-schist), from the Neoproterozoic to Cambrian, 487 to 1,000 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 18×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 15 mi of the line.
Biotite-gneiss. Age: Cambrian to Ordovician, 445 to 542 million years old. About 6 mi of the line.
Biotite-gneiss, mica-schist, calc-silicate-rock. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 3 mi of the line.
Gneiss. Age: Early Cambrian, 524 to 525 million years old. About 0.3 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 Hudson reaches the Atlantic Ocean by way of Gunpowder Creek, the Catawba, the Wateree, the Congaree, the Santee and the South Santee: about 380 river miles.
Lakes on the way: Lib Pines Lake and Lake Norman.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hudson; river miles along the main stem, rounded.
Hudson has a humid subtropical climate. Summer afternoons average 88° in July; winter nights fall to about 27° in January. About 50 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Hudson normally reaches 61° and falls to 36°. The record high is 79°, in 2003; the record low 15°, in 1920. The most rain on this date, 1.50 in, fell in 1871.
Normals 1991–2020 and records since 1871 at Lenoir, 5 miles north-northwest, 100 ft lower. NOAA, through RCC-ACIS.
