The Nantucket 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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69° on Nov. 11, 2022, the hottest reading for this week of the year since 1948. Next is 68° in 2014.
Nantucket’s center stands about 30 ft above sea level. Within three miles the land runs from 0 ft to 70 ft, a difference of 70 ft: gently rolling country. Open water lies within three miles.
Under the town center the state geologic map shows Cretaceous sediments (fine-detrital, coarse-detrital), from the Cretaceous to Late Cretaceous, 72 to 145 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.
Fine-detrital, coarse-detrital. Age: Cretaceous to Late Cretaceous, 72 to 145 million years old. About 11 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 Nantucket runs straight into the Atlantic Ocean.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Nantucket; river miles along the main stem, rounded.
Nantucket has a oceanic climate. Summer afternoons average 76° in August; winter nights fall to about 27° in January. About 41 inches of rain fall in a normal year.
On November 14 Nantucket normally reaches 53° and falls to 40°. The record high is 65°, in 2008; the record low 22°, in 2019. The most rain on this date, 1.52 in, fell in 1972.
Normals 1991–2020 and records since 1948 at Nantucket Memorial Airport, 3 miles southeast. NOAA, through RCC-ACIS.
