The Frost 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.
−11° on Nov. 16, 1933, the coldest reading for this week of the year since 1913. Next is 0° in 1940.
Frost’s center stands about 1,160 ft above sea level. Within three miles the land runs from 1,100 ft to 1,340 ft, a difference of 240 ft: rolling country. The highest named summit within 15 miles is Emery Hill, about 1,390 ft, 12 miles north-northeast.
Under the town center the state geologic map shows Red beds (shale), from the Jurassic, 145 to 202 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 42×. 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 15 mi of the line.
Shale. Age: Jurassic, 145 to 202 million years old. About 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.
A raindrop that lands in Frost reaches Lake Michigan by way of South Branch Town Line Creek, Town Line Creek and the Muskegon: about 180 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 Frost; river miles along the main stem, rounded.
Frost has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 11° in January. A normal year brings about 66 inches of snow; with the rain, that comes to about 30 inches of water.
On November 14 Frost normally reaches 44° and falls to 28°. The record high is 63°, in 1953; the record low 0°, in 1940. The most rain on this date, 0.79 in, fell in 1958.
Normals 1991–2020 and records since 1913 from the Houghton Lake Area threaded record (Houghton Lake Roscommon County Airport, 18 miles north-northeast). NOAA, through RCC-ACIS.