The Brunswick 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
Mostly sunny; warmer
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Mostly cloudy
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Showers likely
72° on Nov. 14, 1999, the hottest reading for this week of the year since 1904. Next is 70° in 1953.
Brunswick’s center stands about 970 ft above sea level. Within three miles the land runs from 950 ft to 1,020 ft, a difference of 70 ft: gently rolling country.
Under the town center the state geologic map shows Middle and Upper Cambrian (sandstone, siltstone, shale), from the Middle Cambrian to Cambrian, 487 to 521 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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, siltstone, shale. Age: Middle Cambrian to Cambrian, 487 to 521 million years old. About 13 mi of the line.
Sandstone, siltstone. Age: Mesoproterozoic, 1 to 1.2 billion years old. About 6 mi of the line.
Volcanic, sedimentary, hypabyssal. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 2 mi of the line.
Granitic. Age: Paleoproterozoic, 1.6 to 1.8 billion years old. About 2 mi of the line.
Granitic. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 1 mi of the line.
Mylonite, gneiss, schist. Age: Paleoproterozoic, 1.6 to 2.5 billion 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.
A raindrop that lands in Brunswick reaches the Gulf of America by way of Ties Creek, Stanchfield Creek, the Rum and the Mississippi: about 1,920 river miles.
Lake on the way: Lake Pepin.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Brunswick; river miles along the main stem, rounded.
Brunswick has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 0° in January. A normal year brings about 52 inches of snow; with the rain, that comes to about 32 inches of water.
On November 14 Brunswick normally reaches 40° and falls to 23°. The record high is 72°, in 1999; the record low −5°, in 1919. The most rain on this date, 1.02 in, fell in 1909.
Normals 1991–2020 and records since 1904 at Mora, 6 miles north-northwest. NOAA, through RCC-ACIS.
