The Greenfield 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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5.76 inches of rain fell in two days, the most for this week of the year since records began in 1903. The next wettest, 4.20 inches, fell in 1909.
Greenfield’s center stands about 1,100 ft above sea level. Within three miles the land runs from 890 ft to 1,110 ft, a difference of 220 ft: rolling country.
Under the town center the state geologic map shows Meramecian Series (limestone), from the Carboniferous, 324 to 359 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 45×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 13 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 9 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 2 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 Greenfield reaches the Gulf of America by way of Wetzel Branch, Sons Creek, the Sac, the Osage, the Missouri and the Mississippi: about 1,600 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 Greenfield; river miles along the main stem, rounded.
Greenfield has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 22° in January. A normal year brings about 13 inches of snow; with the rain, that comes to about 47 inches of water.
On November 14 Greenfield normally reaches 58° and falls to 35°. The record high is 82°, in 1999; the record low 8°, in 2018. The most rain on this date, 4.05 in, fell in 1985.
Normals 1991–2020 and records since 1903 at Lockwood, 6 miles west-southwest. NOAA, through RCC-ACIS.
