The Brookfield 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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75° on Nov. 11, 2020, the hottest reading for this week of the year since 1959. Next is 75° in 2022.
Brookfield’s center stands about 630 ft above sea level. Within three miles the land runs from 630 ft to 670 ft, a difference of 40 ft: nearly flat ground.
Under the town center the state geologic map shows Marshall Sandstone, from the Carboniferous, 324 to 359 million 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 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. Age: Carboniferous, 324 to 359 million years old. About 13 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Shale. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 2 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 Brookfield reaches Lake Huron by way of the Pigeon: about 19 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 Brookfield; river miles along the main stem, rounded.
Brookfield has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 13° in January. A normal year brings about 42 inches of snow; with the rain, that comes to about 33 inches of water.
On November 14 Brookfield normally reaches 46° and falls to 29°. The record high is 68°, in 2009; the record low 8°, in 2019. The most rain on this date, 0.26 in, fell in 2002.
Normals 1991–2020 and records since 1959 at Cass City 1 SSW, 11 miles south-southeast. NOAA, through RCC-ACIS.
