The Guildhall 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.
Chance of showers
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−4° on Nov. 17, 2019, the coldest reading for this week of the year since 1996. Next is −1° in 1996.
Guildhall’s center stands about 860 ft above sea level. Within three miles the land runs from 840 ft to 1,740 ft, a difference of 900 ft: steep hill country. The highest named summit within 15 miles is Mount Cabot, about 4,150 ft, 8 miles east-southeast.
Under the town center the state geologic map shows Lost Nation granite, from the Late Ordovician to Silurian, 438 to 446 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Syenite. Age: Jurassic, 145 to 202 million years old. About 6 mi of the line.
Metasandstone, metasiltstone, phyllite. Age: Middle Cambrian to Early Ordovician, 485 to 500 million years old. About 4 mi of the line.
Quartzite. Age: Early Devonian, 394 to 422 million years old. About 4 mi of the line.
Granite. Age: Late Ordovician to Silurian, 438 to 446 million years old. About 3 mi of the line.
Granite. Age: Middle Jurassic to Late Jurassic, 145 to 175 million years old. About 3 mi of the line.
Granite, granodiorite. 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. 3 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 Guildhall reaches Long Island Sound and the Atlantic Ocean by way of Jones Brook and the Connecticut: about 320 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Guildhall; river miles along the main stem, rounded.
Guildhall has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 5° in January. About 37 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1996 at Whitefield Mount Washington Regional Airport, 14 miles south, 190 ft higher. NOAA, through RCC-ACIS.
