The Chepachet 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.
Partly cloudy
Mostly sunny
Partly cloudy
Sunny
Mostly sunny
Mostly sunny
Mostly sunny
75° on Nov. 15, 1993, the hottest reading for this week of the year since 1974. Next is 70° in 2020.
Chepachet’s center stands about 440 ft above sea level. Within three miles the land runs from 370 ft to 680 ft, a difference of 310 ft: rolling country. The highest named summit within 15 miles is Wood Hill, about 930 ft, 12 miles northwest.
Under the town center the state geologic map shows Esmond Igneous Suite - augen granite gneiss (gneiss, amphibolite), from the Neoproterozoic, 542 to 1,000 million years old.
The section below crosses 12 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 30×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gneiss, amphibolite. Age: Neoproterozoic, 542 to 1,000 million years old. About 9 mi of the line.
Gneiss. Age: Neoproterozoic, 542 to 1,000 million years old. About 4 mi of the line.
Migmatite. Age: Neoproterozoic, 542 to 1,000 million years old. About 3 mi of the line.
Granite. Age: Neoproterozoic, 542 to 1,000 million years old. About 2 mi of the line.
Granite. Age: Neoproterozoic, 613 to 629 million years old. About 2 mi of the line.
Quartzite. Age: Neoproterozoic, 542 to 1,000 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. 6 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 Chepachet reaches Narragansett Bay and the Atlantic Ocean by way of the Chepachet, the Branch, the Blackstone, the Seekonk and the Providence: about 40 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Chepachet; river miles along the main stem, rounded.
Chepachet has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 19° in January. A normal year brings about 62 inches of snow; with the rain, that comes to about 54 inches of water.
On November 14 Chepachet normally reaches 50° and falls to 33°. The record high is 72°, in 1993; the record low 11°, in 1986. The most rain on this date, 2.03 in, fell in 2009.
Normals 1991–2020 and records since 1974 at North Foster 1 E, 5 miles southwest, 190 ft higher. NOAA, through RCC-ACIS.
