The Stoneham 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 1872. Next is 76° in 1909.
Stoneham’s center stands about 180 ft above sea level. Within three miles the land runs from 40 ft to 270 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Prospect Hill, about 480 ft, 10 miles southwest.
Under the town center the state geologic map shows Metamorphosed mafic to felsic flow, and volcaniclastic and hypabyssal intrusive rocks (metavolcanic), 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 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metavolcanic. Age: Neoproterozoic, 542 to 1,000 million years old. About 3 mi of the line.
Granite, granodiorite. Age: Neoproterozoic, 615 to 645 million years old. About 3 mi of the line.
Granite, pegmatite. Age: Ordovician to Silurian, 422 to 487 million years old. About 3 mi of the line.
Rhyolite, felsic-volcanic. Age: Neoproterozoic, 593 to 599 million years old. About 3 mi of the line.
Diorite, gabbro. Age: Neoproterozoic, 542 to 1,000 million years old. About 2 mi of the line.
Argillite. Age: Neoproterozoic to Early Cambrian, 521 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 Stoneham reaches Boston Harbor and the Atlantic Ocean by way of Horn Pond Brook and the Mystic: about 12 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Stoneham; river miles along the main stem, rounded.
Stoneham has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 23° in January. A normal year brings about 49 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Stoneham normally reaches 52° and falls to 38°. The record high is 71°, in 1993; the record low 16°, in 1905. The most rain on this date, 1.49 in, fell in 2009.
Normals 1991–2020 and records since 1872 from the Boston Area threaded record (Boston Logan International Airport, 9 miles south-southeast, 170 ft lower). NOAA, through RCC-ACIS.
