The Sugar Island 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.
Partly cloudy
Partly cloudy
Partly cloudy
Partly cloudy
Partly cloudy
Chance of showers
Mostly cloudy
66° on Nov. 17, 1953, the hottest reading for this week of the year since 1888. Next is 64° in 2012.
Sugar Island’s center stands about 720 ft above sea level. Within three miles the land runs from 570 ft to 820 ft, a difference of 250 ft: rolling country.
Under the town center the state geologic map shows Jacobsville Sandstone, from the Mesoproterozoic, 1 to 1.6 billion 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 27×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 11 mi of the line.
Limestone. Age: Late Ordovician, 445 to 459 million years old. About 2 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 1 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.
Sugar Island has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 8° in January. A normal year brings about 120 inches of snow; with the rain, that comes to about 34 inches of water.
On November 14 Sugar Island normally reaches 42° and falls to 29°. The record high is 60°, in 1909; the record low −1°, in 1933. The most rain on this date, 1.34 in, fell in 1957.
Normals 1991–2020 and records since 1888 from the Sault Ste Marie Area threaded record (Sault Ste Marie Sanderson Field, 8 miles west-northwest). NOAA, through RCC-ACIS.
