The Frankford 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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75° on Nov. 16, 1928, the hottest reading for this week of the year since 1880. Next is 75° in 1993.
Frankford’s center stands about 690 ft above sea level. Within three miles the land runs from 460 ft to 1,440 ft, a difference of 980 ft: steep hill country. The highest named summit within 15 miles is Kittatinny Mountain, about 1,780 ft, 12 miles north-northeast.
Under the town center the state geologic map shows Ramseyburg Member (graywacke, siltstone), from the Middle Ordovician to Late Ordovician, 445 to 471 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 16×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Graywacke, siltstone. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 16 mi of the line.
Siltstone, sandstone. Age: Silurian, 422 to 428 million years old. About 2 mi of the line.
Sandstone, conglomerate. Age: Silurian, 428 to 445 million years old. About 2 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 mi of the line.
Dolostone. Age: Cambrian to Early Ordovician, 471 to 497 million years old. About 0.7 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 Frankford reaches Delaware Bay and the Atlantic Ocean by way of Dry Brook, Paulins Kill and the Delaware: about 210 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Frankford; river miles along the main stem, rounded.
Frankford has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 16° in January. A normal year brings about 43 inches of snow; with the rain, that comes to about 47 inches of water.
On November 14 Frankford normally reaches 50° and falls to 30°. The record high is 71°, in 1989; the record low 12°, in 1905. The most rain on this date, 1.40 in, fell in 1972.
Normals 1991–2020 and records since 1880 at Port Jervis, 16 miles north, 110 ft lower. NOAA, through RCC-ACIS.
