The Floris 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
Sunny
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Chance of showers
78° on Nov. 13, 1999, the hottest reading for this week of the year since 1948. Next is 77° in 2016.
Floris’s center stands about 700 ft above sea level. Within three miles the land runs from 640 ft to 830 ft, a difference of 190 ft: gently rolling country.
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 60×. 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, sandstone, siltstone. Age: Early Pennsylvanian to Middle Pennsylvanian, 307 to 324 million years old. About 15 mi of the line.
Shale, siltstone. Age: Middle Pennsylvanian, 307 to 315 million years old. About 5 mi of the line.
Dolostone, limestone. Age: Middle Mississippian to Late Mississippian, 324 to 347 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 Floris reaches the Gulf of America by way of Morgan Branch, Soap Creek, the Des Moines and the Mississippi: about 1,420 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Floris; river miles along the main stem, rounded.
Floris has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 14° in January. A normal year brings about 24 inches of snow; with the rain, that comes to about 37 inches of water.
On November 14 Floris normally reaches 50° and falls to 30°. The record high is 75°, in 2025; the record low 4°, in 1959. The most rain on this date, 0.70 in, fell in 1968.
Normals 1991–2020 and records since 1948 at Ottumwa Industrial Airport, 17 miles north-northwest, 130 ft higher. NOAA, through RCC-ACIS.
