The Medway 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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75° on Nov. 15, 1993, the hottest reading for this week of the year since 1972. Next is 74° in 2020.
Medway’s center stands about 200 ft above sea level. Within three miles the land runs from 130 ft to 350 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is Fay Mountain, about 740 ft, 14 miles west-northwest.
Under the town center the state geologic map shows Quincy Granite (alkali-granite), from the Late Ordovician to Silurian, 428 to 459 million years old.
The section below crosses 11 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Alkali-granite. Age: Late Ordovician to Silurian, 428 to 459 million years old. About 4 mi of the line.
Quartzite, schist, phyllite. Age: Neoproterozoic, 542 to 1,000 million years old. About 4 mi of the line.
Granite. Age: Neoproterozoic, 615 to 645 million years old. About 3 mi of the line.
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, 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. 5 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 Medway reaches Boston Harbor and the Atlantic Ocean by way of Chicken Brook and the Charles: about 65 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Medway; river miles along the main stem, rounded.
Medway has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 20° in January. A normal year brings about 56 inches of snow; with the rain, that comes to about 50 inches of water.
On November 14 Medway normally reaches 52° and falls to 34°. The record high is 71°, in 1993; the record low 12°, in 1986. The most rain on this date, 0.96 in, fell in 1988.
Normals 1991–2020 and records since 1972 at Walpole 2, 8 miles east. NOAA, through RCC-ACIS.
