The Tiverton 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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78° on Nov. 15, 1993, the hottest reading for this week of the year since 1904. Next is 75° in 1909.
Tiverton’s center stands about 230 ft above sea level. Within three miles the land runs from 0 ft to 290 ft, a difference of 290 ft: rolling country. Open water lies within three miles.
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 59×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Granite. Age: Neoproterozoic, 600 to 601 million years old. About 5 mi of the line.
Granite. Age: Neoproterozoic, 542 to 1,000 million years old. About 4 mi of the line.
Gneiss, schist, amphibolite. Age: Neoproterozoic, 542 to 1,000 million years old. About 3 mi of the line.
Alkali-granite. Age: Neoproterozoic, 542 to 1,000 million years old. About 1 mi of the line.
Age: Carboniferous, 299 to 324 million years old. About 0.7 mi of the line.
Conglomerate, sandstone. Age: Carboniferous, 299 to 324 million years old. About 0.3 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.
Rain that falls on Tiverton runs straight into Narragansett Bay and the Atlantic Ocean.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tiverton; river miles along the main stem, rounded.
Tiverton has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 22° in January. A normal year brings about 37 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Tiverton normally reaches 54° and falls to 36°. The record high is 75°, in 1993; the record low 16°, in 1905. The most rain on this date, 2.13 in, fell in 2009.
Normals 1991–2020 and records since 1904 from the Providence Area threaded record (Rhode Island T.F. Green International Airport, 13 miles west-northwest, 180 ft lower). NOAA, through RCC-ACIS.
