The Harmony 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.
Chance of showers
Mostly cloudy
Mostly cloudy
Sunny
Sunny
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Partly cloudy
71° on Nov. 12, 2020, the hottest reading for this week of the year since 1924. Next is 69° in 1956.
Harmony’s center stands about 1,070 ft above sea level. Within three miles the land runs from 920 ft to 1,880 ft, a difference of 960 ft: steep hill country. The highest named summit within 15 miles is Mount Ararat, about 2,640 ft, 12 miles south-southeast.
Under the town center the state geologic map shows Lock Haven Formation (sandstone, siltstone, mudstone), from the Late Devonian, 359 to 384 million years old.
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 14×. 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, siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 15 mi of the line.
Shale, sandstone, conglomerate. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Sandstone, siltstone, mudstone. Age: Late Devonian, 359 to 384 million years old. About 0.4 mi of the line.
Shale, sandstone, conglomerate. Age: Late Devonian, 359 to 384 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 Harmony reaches Chesapeake Bay and the Atlantic Ocean by way of Starrucca Creek and the Susquehanna: about 370 river miles.
Lake on the way: Lake Aldred.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Harmony; river miles along the main stem, rounded.
Harmony has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 12° in January. A normal year brings about 69 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 Harmony normally reaches 45° and falls to 27°. The record high is 64°, in 1964; the record low 5°, in 1986. The most rain on this date, 1.30 in, fell in 1972.
Normals 1991–2020 and records since 1924 at Pleasant Mount 1 W, 16 miles south-southeast, 730 ft higher. NOAA, through RCC-ACIS.
