The Day 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.
70° on Nov. 11, 2020, the hottest reading for this week of the year since 1948. Next is 68° in 1989.
Day’s center stands about 1,380 ft above sea level. Within three miles the land runs from 760 ft to 2,350 ft, a difference of 1,590 ft: steep hill country. The highest named summit within 15 miles is Mount Blue, about 2,920 ft, 14 miles north.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metasedimentary, migmatite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 13 mi of the line.
Gneiss, metasedimentary. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 7 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 1 mi of the line.
Quartzite, schist. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.6 mi of the line.
Biotite-gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.5 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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 Day reaches New York Harbor and the Atlantic Ocean by way of Paul Creek, the Sacandaga and the Hudson: about 240 river miles.
Lake on the way: Great Sacandaga Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Day; river miles along the main stem, rounded.
Day has a warm-summer humid continental climate. Summer afternoons average 77° in July; winter nights fall to about 12° in January. A normal year brings about 60 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 Day normally reaches 46° and falls to 31°. The record high is 68°, in 1989; the record low 12°, in 2019. The most rain on this date, 0.78 in, fell in 1988.
Normals 1991–2020 and records since 1948 at Conklingville Dam, 5 miles east, 570 ft lower. NOAA, through RCC-ACIS.