The Port Wing 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
Mostly cloudy
Chance of showers
Showers likely
69° on Nov. 14, 1999, the hottest reading for this week of the year since 1928. Next is 67° in 1931.
Port Wing’s center stands about 680 ft above sea level. Within three miles the land runs from 590 ft to 1,000 ft, a difference of 410 ft: hilly country. The highest named summit within 15 miles is Sugar Camp Hill, about 1,270 ft, 15 miles southwest.
Under the town center the state geologic map shows Bayfield Group; Orienta Sandstone (arkose), from the Mesoproterozoic, 1 to 1.6 billion 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 23×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Arkose. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 8 mi of the line.
Arkose. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 4 mi of the line.
Sandstone. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.9 mi of the line.
Basalt, basaltic-andesite. Age: Mesoproterozoic, 1 to 1.2 billion years old. About 0.7 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 Port Wing reaches Lake Superior by way of the Flag: about 5 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Port Wing; river miles along the main stem, rounded.
Port Wing has a warm-summer humid continental climate. Summer afternoons average 78° in July; winter nights fall to about 2° in January. About 33 inches of rain fall in a normal year.
On November 14 Port Wing normally reaches 38° and falls to 24°. The record high is 69°, in 1999; the record low −5°, in 1943. The most rain on this date, 1.49 in, fell in 2021.
Normals 1991–2020 and records since 1928 at Brule Ranger Station, 19 miles south-southwest, 320 ft higher. NOAA, through RCC-ACIS.
