The Rockport Colony 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.
Partly cloudy
Mostly sunny; warmer
Mostly sunny
Partly cloudy
Partly cloudy
Partly cloudy; cooler
Showers likely
82° on Nov. 15, 2025, the hottest reading for this week of the year since 1893. Next is 80° in 1953.
Rockport Colony’s center stands about 1,250 ft above sea level. Within three miles the land runs from 1,200 ft to 1,330 ft, a difference of 130 ft: gently rolling country.
Under the town center the state geologic map shows Sioux Quartzite, from the Paleoproterozoic, 1.6 to 2.5 billion years old.
The section below crosses 2 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.
Chalk, marlstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 20 mi of the line.
Quartzite. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 4 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 Rockport Colony reaches the Gulf of America by way of the James, the Missouri and the Mississippi: about 2,070 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Rockport Colony; river miles along the main stem, rounded.
Rockport Colony has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 6° in January. A normal year brings about 36 inches of snow; with the rain, that comes to about 25 inches of water.
On November 14 Rockport Colony normally reaches 44° and falls to 22°. The record high is 73°, in 1953; the record low −21°, in 1959. The most rain on this date, 0.70 in, fell in 2008.
Normals 1991–2020 and records since 1893 at Alexandria, 5 miles north-northeast, 100 ft higher. NOAA, through RCC-ACIS.
