The Rupert 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.
70° on Nov. 15, 1956, the hottest reading for this week of the year since 1893. Next is 69° in 1909.
Rupert’s center stands about 840 ft above sea level. Within three miles the land runs from 690 ft to 2,310 ft, a difference of 1,620 ft: steep hill country. The highest named summit within 15 miles is Equinox Mountain, about 3,830 ft, 8 miles southeast.
Under the town center the state geologic map shows Bull Formation - Mettawee slate facies (phyllite), from the Neoproterozoic, 542 to 1,000 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Phyllite. Age: Neoproterozoic, 542 to 1,000 million years old. About 9 mi of the line.
Slate, phyllite. Age: Early Ordovician to Middle Ordovician, 459 to 487 million years old. About 4 mi of the line.
Phyllite, metasiltstone. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 4 mi of the line.
Phyllite, metasiltstone. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 2 mi of the line.
Argillite, mudstone. Age: Late Ordovician, 445 to 459 million years old. About 2 mi of the line.
Slate, phyllite. Age: Cambrian, 487 to 542 million years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 3 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.
Rupert straddles the St. Lawrence Divide. Rain on the northeast side runs to the St. Lawrence River; most of the rest goes to New York Harbor and the Atlantic Ocean.
From the center of town, a raindrop reaches New York Harbor and the Atlantic Ocean by way of White Creek, Batten Kill and the Hudson: about 210 river miles. One that lands on the northeast side reaches the St. Lawrence River by way of the Mettawee and the Richelieu: about 250 river miles. The St. Lawrence carries it on to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Rupert; river miles along the main stem, rounded.
Rupert has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 10° in January. About 38 inches of rain fall in a normal year.
On November 14 Rupert normally reaches 47° and falls to 28°. The record high is 67°, in 1973; the record low 5°, in 1905. The most rain on this date, 1.45 in, fell in 2009.
Normals 1991–2020 and records since 1893 from the Glens Falls Area threaded record (Glens Falls/Floyd Bennett Memorial Airport, 20 miles west-northwest, 520 ft lower). NOAA, through RCC-ACIS.