The Morrisville 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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72° on Nov. 11, 2020, the hottest reading for this week of the year since 1911. Next is 69° in 1956.
Morrisville’s center stands about 1,300 ft above sea level. Within three miles the land runs from 1,050 ft to 1,680 ft, a difference of 630 ft: hilly country. The highest named summit within 15 miles is Muller Hill, about 2,050 ft, 11 miles southwest.
Under the town center the state geologic map shows Marcellus Formation (black-shale), from the Middle Devonian, 388 to 394 million years old.
The section below crosses 11 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 13×. 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. Age: Middle Devonian, 384 to 394 million years old. About 6 mi of the line.
Black-shale. Age: Middle Devonian, 388 to 394 million years old. About 4 mi of the line.
Shale. Age: Middle Devonian, 384 to 388 million years old. About 3 mi of the line.
Shale, limestone. Age: Middle Devonian, 384 to 388 million years old. About 3 mi of the line.
Limestone. Age: Early Devonian to Middle Devonian, 388 to 410 million years old. About 2 mi of the line.
Limestone. Age: Early Devonian, 394 to 422 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. 5 smaller units 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 Morrisville reaches Chesapeake Bay and the Atlantic Ocean by way of Callahan Brook, the Chenango and the Susquehanna: about 420 river miles.
Lake on the way: Lake Aldred.
290 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Morrisville; river miles along the main stem, rounded.
Morrisville has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 11° in January. About 48 inches of rain fall in a normal year.
On November 14 Morrisville normally reaches 45° and falls to 29°. The record high is 64°, in 1989; the record low 4°, in 2019. The most rain on this date, 1.09 in, fell in 1968.
Normals 1991–2020 and records since 1911 at Morrisville 6 SW, 6 miles southwest, 380 ft higher. NOAA, through RCC-ACIS.
