The Milan 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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−6° on Nov. 17, 2019, the coldest reading for this week of the year since 1996. Next is −4° in 2018.
Milan’s center stands about 1,130 ft above sea level. Within three miles the land runs from 1,100 ft to 1,770 ft, a difference of 670 ft: hilly country. The highest named summit within 15 miles is Old Speck Mountain, about 4,180 ft, 11 miles east.
Under the town center the state geologic map shows Porphyritic biotite granodiorite in northern Jefferson dome in Milan quadrangle, from the Late Ordovician, 445 to 459 million years old.
The section below crosses 15 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×. 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. Age: Middle Jurassic to Late Jurassic, 145 to 175 million years old. About 5 mi of the line.
Granodiorite. Age: Late Ordovician, 445 to 459 million years old. About 4 mi of the line.
Metabasalt. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 3 mi of the line.
Felsic-volcanic, mafic-volcanic. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 3 mi of the line.
Trondhjemite, quartz-diorite. Age: Late Ordovician, 445 to 459 million years old. About 2 mi of the line.
Granite. Age: Late Ordovician, 445 to 459 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. 9 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 Milan reaches Long Island Sound and the Atlantic Ocean by way of the North Branch Upper Ammonoosuc, the Upper Ammonoosuc and the Connecticut: about 350 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Milan; river miles along the main stem, rounded.
Milan has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 3° in January. About 36 inches of rain fall in a normal year.
On November 14 Milan normally reaches 45° and falls to 23°. The record high is 66°, in 2011; the record low −1°, in 2019. The most rain on this date, 0.76 in, fell in 2009.
Normals 1991–2020 and records since 1996 at Berlin Regional Airport, here. NOAA, through RCC-ACIS.
