The Hartwick 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.
Mostly cloudy
Mostly cloudy; warmer
Mostly sunny
Mostly sunny
Partly cloudy
Partly cloudy
Partly cloudy
72° on Nov. 11, 2022, the hottest reading for this week of the year since 1909. Next is 67° in 1953.
Hartwick’s center stands about 1,360 ft above sea level. Within three miles the land runs from 1,140 ft to 1,460 ft, a difference of 320 ft: rolling country.
Under the town center the state geologic map shows Saginaw Formation (sandstone, shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 31×. 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, shale. Age: Carboniferous, 299 to 324 million years old. About 18 mi of the line.
Shale. Age: Jurassic, 145 to 202 million years old. About 6 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 Hartwick reaches Lake Michigan by way of Whetstone Creek, the Muskegon and the Middle Channel Muskegon: about 130 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lake on the way: Muskegon Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hartwick; river miles along the main stem, rounded.
Hartwick has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 12° in January. About 35 inches of rain fall in a normal year.
On November 14 Hartwick normally reaches 44° and falls to 29°. The record high is 63°, in 1953; the record low 2°, in 1943. The most rain on this date, 0.88 in, fell in 1980.
Normals 1991–2020 and records since 1909 at Cadillac Wexford County Airport, 20 miles north-northwest. NOAA, through RCC-ACIS.
