The Hampton 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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73° on Nov. 11, 1964, the hottest reading for this week of the year since 1938. Next is 73° in 1989.
Hampton’s center stands about 700 ft above sea level. Within three miles the land runs from 550 ft to 730 ft, a difference of 180 ft: gently rolling country.
Under the town center the state geologic map shows Muscatatuck Group (limestone), from the Middle Devonian, 384 to 394 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 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.
Dolostone, mudstone. Age: Silurian, 425 to 434 million years old. About 8 mi of the line.
Limestone. Age: Middle Devonian, 384 to 394 million years old. About 7 mi of the line.
Shale, sandstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million years old. About 6 mi of the line.
Shale, sandstone, siltstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million 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 Hampton reaches the Gulf of America by way of the Mississippi: about 1,470 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hampton; river miles along the main stem, rounded.
Hampton has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 14° in January. About 37 inches of rain fall in a normal year.
On November 14 Hampton normally reaches 49° and falls to 32°. The record high is 72°, in 1971; the record low 10°, in 1959. The most rain on this date, 0.60 in, fell in 1972.
Normals 1991–2020 and records since 1938 at Le Claire L&D 14, here, 120 ft lower. NOAA, through RCC-ACIS.
