The Sault Ste. Marie 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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66° on Nov. 17, 1953, the hottest reading for this week of the year since 1888. Next is 64° in 2012.
Sault Ste. Marie’s center stands about 720 ft above sea level. Within three miles the land runs from 570 ft to 770 ft, a difference of 200 ft: gently rolling country. The highest named summit within 15 miles is Mission Hill, about 1,050 ft, 15 miles west.
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 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 25×. 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 5 mi of the line.
Sandstone. Age: Cambrian, 487 to 497 million years old. About 3 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 2 mi of the line.
Limestone. Age: Late Ordovician, 445 to 459 million years old. About 2 mi of the line.
Limestone, dolostone. Age: Late Ordovician, 445 to 459 million years old. About 0.9 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.
Sault Ste. Marie 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 Sault Ste. Marie 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, here). NOAA, through RCC-ACIS.
