The Winona 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 cloudy
Partly cloudy; warmer
Partly cloudy
Partly cloudy
Mostly sunny
Partly cloudy
Chance of showers
82° on Nov. 15, 2025, the hottest reading for this week of the year since 1910. Next is 81° in 2007.
Winona’s center stands about 3,330 ft above sea level. Within three miles the land runs from 3,210 ft to 3,360 ft, a difference of 150 ft: gently rolling country.
Under the town center the state geologic map shows Loess (silt), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 36×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 24 mi of the line.
Shale. Age: Late Cretaceous, 66 to 100 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 Winona reaches the Gulf of America by way of Sixmile Creek, the Smoky Hill, the Kansas, the Missouri and the Mississippi: about 2,150 river miles.
Lake on the way: Cedar Bluff Reservoir.
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 Winona; river miles along the main stem, rounded.
Winona has a cold semi-arid climate. Summer afternoons average 93° in July; winter nights fall to about 16° in January. A normal year brings about 22 inches of snow; with the rain, that comes to about 18 inches of water.
On November 14 Winona normally reaches 56° and falls to 25°. The record high is 81°, in 2007; the record low −4°, in 2014. The most rain on this date, 0.23 in, fell in 1985.
Normals 1991–2020 and records since 1910 at Russell Springs 3 N, 8 miles south-southeast, 270 ft lower. NOAA, through RCC-ACIS.
