The Bourne 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. 13, 2022, the hottest reading for this week of the year since 1912. Next is 73° in 1993.
Bourne’s center stands about 40 ft above sea level. Within three miles the land runs from 0 ft to 270 ft, a difference of 270 ft: rolling country. Open water lies within three miles. The highest named summit within 15 miles is Pine Hills, about 410 ft, 13 miles north.
Under the town center the state geologic map shows Granite, gneiss, and schist, undivided (granite, gneiss, schist), from the Neoproterozoic, 542 to 1,000 million years old.
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.
Granite, gneiss, schist. Age: Neoproterozoic, 542 to 1,000 million years old. About 12 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.
A raindrop that lands in Bourne reaches the Atlantic Ocean by way of the Back: about 1 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bourne; river miles along the main stem, rounded.
Bourne has a hot-summer humid continental climate. Summer afternoons average 81° 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 51 inches of water.
On November 14 Bourne normally reaches 54° and falls to 35°. The record high is 72°, in 1959; the record low 16°, in 1986. The most rain on this date, 2.05 in, fell in 1940.
Normals 1991–2020 and records since 1912 at East Wareham, 4 miles west-northwest. NOAA, through RCC-ACIS.
