The Montgomery 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
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Sunny
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75° on Nov. 11, 2020, the hottest reading for this week of the year since 1982. Next is 72° in 1994.
Montgomery’s center stands about 1,700 ft above sea level. Within three miles the land runs from 1,440 ft to 1,940 ft, a difference of 500 ft: hilly country. The highest named summit within 15 miles is Kinter Hill, about 2,110 ft, 7 miles west-northwest.
Under the town center the state geologic map shows Casselman Formation (shale, clastic), from the Carboniferous, 299 to 324 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 21×. 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: Carboniferous, 299 to 324 million years old. About 14 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Shale, clastic. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 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 Montgomery reaches Chesapeake Bay and the Atlantic Ocean by way of Shryock Run, the West Branch Susquehanna and the Susquehanna: about 360 river miles.
Lake on the way: Lake Aldred.
230 miles of the trip are on the West Branch Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Montgomery; river miles along the main stem, rounded.
Montgomery has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 16° in January. A normal year brings about 50 inches of snow; with the rain, that comes to about 41 inches of water.
On November 14 Montgomery normally reaches 50° and falls to 30°. The record high is 65°, in 2010; the record low 8°, in 1986. The most rain on this date, 0.61 in, fell in 1993.
Normals 1991–2020 and records since 1982 at Prince Gallitzin State Park, 18 miles east-southeast, 180 ft lower. NOAA, through RCC-ACIS.
