The Mastic 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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72° on Nov. 11, 1999, the hottest reading for this week of the year since 1993. Next is 72° in 2001.
Mastic’s center stands about 40 ft above sea level. Within three miles the land runs from 0 ft to 110 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Bald Hill, about 290 ft, 9 miles northeast.
Under the town center the state geologic map shows Monmouth Group, Matawan Group and Magothy Formation (clay, sand, gravel), from the Late Cretaceous, 66 to 100 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.
Clay, sand, gravel. Age: Late Cretaceous, 66 to 100 million years old. About 16 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 Mastic reaches the Atlantic Ocean by way of Second Neck Creek: about 3 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mastic; river miles along the main stem, rounded.
Mastic has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 21° in January. About 50 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1993 at Upton Coop - Nwsfo New York, 5 miles north-northwest. NOAA, through RCC-ACIS.
