The East Amana 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.
Sunny
Partly cloudy; warmer
Mostly sunny
Mostly sunny
Partly cloudy
Mostly sunny
Chance of showers
77° on Nov. 11, 1964, the hottest reading for this week of the year since 1893. Next is 76° in 1999.
East Amana’s center stands about 750 ft above sea level. Within three miles the land runs from 700 ft to 900 ft, a difference of 200 ft: rolling country.
Under the town center the state geologic map shows Famennian formations (shale, siltstone), from the Late Devonian, 359 to 374 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.
Shale, limestone, dolostone. Age: Late Devonian, 374 to 384 million years old. About 9 mi of the line.
Shale, sandstone, siltstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million years old. About 6 mi of the line.
Shale, siltstone. Age: Late Devonian, 359 to 374 million years old. About 5 mi of the line.
Limestone, dolostone. Age: Middle Devonian to Late Devonian, 374 to 388 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 East Amana reaches the Gulf of America by way of the Iowa and the Mississippi: about 1,520 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of East Amana; river miles along the main stem, rounded.
East Amana has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 11° in January. About 36 inches of rain fall in a normal year.
On November 14 East Amana normally reaches 47° and falls to 28°. The record high is 75°, in 1964; the record low 0°, in 1959. The most rain on this date, 1.42 in, fell in 1956.
Normals 1991–2020 and records since 1893 from the Cedar Rapids Area threaded record (Cedar Rapids Municipal Airport, 8 miles northeast). NOAA, through RCC-ACIS.
