The Hemlock 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
Sunny
Mostly sunny
Partly cloudy
Mostly sunny
7° on Nov. 15, 1986, the coldest reading for this week of the year since 1942. Next is 8° in 1957.
Hemlock’s center stands about 920 ft above sea level. Within three miles the land runs from 750 ft to 1,090 ft, a difference of 340 ft: rolling country.
The section below crosses 3 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.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 13 mi of the line.
Shale, siltstone. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million 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 Hemlock reaches the Gulf of America by way of West Branch Sunday Creek, Sunday Creek, the Hocking, the Ohio and the Mississippi: about 1,810 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hemlock; river miles along the main stem, rounded.
Hemlock has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 18° in January. A normal year brings about 20 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Hemlock normally reaches 53° and falls to 30°. The record high is 72°, in 2010; the record low 8°, in 1986. The most rain on this date, 1.36 in, fell in 1972.
Normals 1991–2020 and records since 1942 at New Lexington 2 NW, 10 miles north-northwest. NOAA, through RCC-ACIS.
