The Greenbush 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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10° on Nov. 12, 2019, the coldest reading for this week of the year since 1971. Next is 13° in 2017.
Greenbush’s center stands about 650 ft above sea level. Within three miles the land runs from 580 ft to 780 ft, a difference of 200 ft: rolling country.
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 58×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Carboniferous, 324 to 359 million years old. About 19 mi of the line.
Black-shale. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 million years old. About 1 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 0.9 mi of the line.
Black-shale. Age: Devonian to Carboniferous, 324 to 422 million years old. About 0.4 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 Greenbush reaches Lake Huron by way of Van Etten Creek and the Au Sable: about 9 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 Greenbush; river miles along the main stem, rounded.
Greenbush has a warm-summer humid continental climate. Summer afternoons average 74° in August; winter nights fall to about 13° in January. A normal year brings about 52 inches of snow; with the rain, that comes to about 29 inches of water.
On November 14 Greenbush normally reaches 42° and falls to 30°. The record high is 61°, in 2005; the record low 12°, in 2019. The most rain on this date, 0.32 in, fell in 2000.
Normals 1991–2020 and records since 1971 at Harrisville State Park, 8 miles north-northeast. NOAA, through RCC-ACIS.
