The Richmond 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.
Mostly sunny
Mostly sunny; warmer
Partly cloudy
Partly cloudy
Partly cloudy
Partly cloudy
Showers likely
3.24 inches of rain fell in two days, the most for this week of the year since records began in 1918. The next wettest, 2.10 inches, fell in 1940.
Richmond’s center stands about 970 ft above sea level. Within three miles the land runs from 920 ft to 1,050 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Big Mound, about 1,130 ft, 3 miles west-southwest.
Under the town center the state geologic map shows Prairie du Chien Group (dolostone), from the Early Ordovician, 471 to 487 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 39×. 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. Age: Early Ordovician, 471 to 487 million years old. About 13 mi of the line.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 7 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Sandstone, siltstone, shale. Age: Cambrian, 487 to 497 million years old. About 0.4 mi of the line.
Dolostone, sandstone. Age: Early Ordovician, 471 to 487 million years old. About 0.4 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 Richmond reaches the Gulf of America by way of Tenmile Creek, the Willow and the Mississippi: about 1,820 river miles.
Lakes on the way: Lake Pepin and Lake Mallalieu 175.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Richmond; river miles along the main stem, rounded.
Richmond has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 4° in January. About 34 inches of rain fall in a normal year.
On November 14 Richmond normally reaches 42° and falls to 24°. The record high is 71°, in 1990; the record low −8°, in 1940. The most rain on this date, 1.09 in, fell in 1951.
Normals 1991–2020 and records since 1918 at River Falls, 15 miles south. NOAA, through RCC-ACIS.
