The Ulster 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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76° on Nov. 11, 2020, the hottest reading for this week of the year since 1893. Next is 74° in 1902.
Ulster’s center stands about 800 ft above sea level. Within three miles the land runs from 720 ft to 1,560 ft, a difference of 840 ft: hilly country. The highest named summit within 15 miles is Robwood Mountain, about 2,350 ft, 14 miles south-southeast.
Under the town center the state geologic map shows Lock Haven Formation (sandstone, siltstone, mudstone), from the Late Devonian, 359 to 384 million years old.
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.
Sandstone, siltstone, mudstone. Age: Late Devonian, 359 to 384 million years old. About 24 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 Ulster reaches Chesapeake Bay and the Atlantic Ocean by way of Cash Creek and the Susquehanna: about 290 river miles.
Lake on the way: Lake Aldred.
240 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Ulster; river miles along the main stem, rounded.
Ulster has a warm-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 16° in January. About 37 inches of rain fall in a normal year.
On November 14 Ulster normally reaches 50° and falls to 30°. The record high is 74°, in 1902; the record low 7°, in 1905. The most rain on this date, 0.94 in, fell in 1997.
Normals 1991–2020 and records since 1893 at Waverly, 11 miles north. NOAA, through RCC-ACIS.
