The Hornby 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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9° on Nov. 13, 2019, the coldest reading for this week of the year since 1909. Next is 14° in 1996.
Hornby’s center stands about 1,560 ft above sea level. Within three miles the land runs from 1,270 ft to 2,010 ft, a difference of 740 ft: hilly country. The highest named summit within 15 miles is Huey Hill, about 1,960 ft, 11 miles north.
Under the town center the state geologic map shows Nunda Formation, West Hill Formation (sandstone), from the Late Devonian, 359 to 384 million years old.
The section below crosses 6 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. Age: Late Devonian, 359 to 384 million years old. About 9 mi of the line.
Shale. 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 4 mi of the line.
Sandstone. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Shale, siltstone. Age: Late Devonian, 359 to 384 million years old. About 1 mi of the line.
Shale. Age: Late Devonian, 359 to 384 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 Hornby reaches Chesapeake Bay and the Atlantic Ocean by way of Cutler Creek, the Chemung and the Susquehanna: about 340 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 Hornby; river miles along the main stem, rounded.
Hornby has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 12° in January. A normal year brings about 53 inches of snow; with the rain, that comes to about 39 inches of water.
On November 14 Hornby normally reaches 46° and falls to 27°. The record high is 65°, in 1994; the record low 9°, in 2019. The most rain on this date, 0.87 in, fell in 1937.
Normals 1991–2020 and records since 1909 at Corning, 8 miles south, 410 ft lower. NOAA, through RCC-ACIS.
