The Arkport 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
Mostly sunny
Mostly sunny
Partly cloudy
Partly cloudy
80° on Nov. 11, 2020, the hottest reading for this week of the year since 1917. Next is 76° in 1956.
Arkport’s center stands about 1,190 ft above sea level. Within three miles the land runs from 1,170 ft to 1,920 ft, a difference of 750 ft: hilly country. The highest named summit within 15 miles is Call Hill, about 2,420 ft, 13 miles south.
Under the town center the state geologic map shows Nunda Formation (sandstone), 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 12×. 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, sandstone. Age: Late Devonian, 359 to 384 million years old. About 15 mi of the line.
Shale, siltstone. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Sandstone. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Sandstone. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
Shale, sandstone. Age: Late Devonian, 359 to 384 million years old. About 0.8 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 Arkport reaches Chesapeake Bay and the Atlantic Ocean by way of Lime Kiln Creek, the Tioga, the Chemung and the Susquehanna: about 390 river miles.
Lake on the way: Lake Aldred.
250 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Arkport; river miles along the main stem, rounded.
Arkport has a warm-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 17° in January. A normal year brings about 36 inches of snow; with the rain, that comes to about 31 inches of water.
On November 14 Arkport normally reaches 51° and falls to 32°. The record high is 72°, in 1961; the record low 14°, in 2019. The most rain on this date, 0.80 in, fell in 1997.
Normals 1991–2020 and records since 1917 at Dansville, 12 miles north, 530 ft lower. NOAA, through RCC-ACIS.
