The Cyr 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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67° on Nov. 11, 2020, the hottest reading for this week of the year since 1939. Next is 66° in 2002.
Cyr’s center stands about 910 ft above sea level. Within three miles the land runs from 610 ft to 1,060 ft, a difference of 450 ft: hilly country. The highest named summit within 15 miles is Cold Mountain, about 1,070 ft, 11 miles northwest.
Under the town center the state geologic map shows Silurian New Sweden Formation (mudstone), from the Silurian, 422 to 445 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 30×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, limestone. Age: Late Ordovician to Silurian, 434 to 459 million years old. About 7 mi of the line.
Mudstone, sandstone. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Mudstone. Age: Silurian, 422 to 445 million years old. About 4 mi of the line.
Sandstone, conglomerate. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Mudstone, sandstone. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Sandstone, mudstone. Age: Silurian to Devonian, 359 to 445 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.
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 Cyr reaches the Bay of Fundy and the Atlantic Ocean by way of Hammond Brook and the Saint John: about 230 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cyr; river miles along the main stem, rounded.
Cyr has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 3° in January. A normal year brings about 118 inches of snow; with the rain, that comes to about 41 inches of water.
On November 14 Cyr normally reaches 40° and falls to 26°. The record high is 60°, in 1951; the record low 3°, in 2019. The most rain on this date, 2.22 in, fell in 2006.
Normals 1991–2020 and records since 1939 from the Caribou Area threaded record (Caribou Wfo, 15 miles south, 290 ft lower). NOAA, through RCC-ACIS.
