The Greece 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.
8° on Nov. 16, 1933, the coldest reading for this week of the year since 1871. Next is 10° in 1905.
Greece’s center stands about 430 ft above sea level. Within three miles the land runs from 320 ft to 560 ft, a difference of 240 ft: rolling country. The highest named summit within 15 miles is Ryder Hill, about 820 ft, 15 miles south.
Under the town center the state geologic map shows Queenston Shale, from the Late Ordovician, 445 to 459 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 41×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Late Ordovician, 445 to 459 million years old. About 9 mi of the line.
Dolostone. Age: Silurian, 425 to 434 million years old. About 4 mi of the line.
Shale. Age: Silurian, 428 to 445 million years old. About 3 mi of the line.
Sandstone. Age: Silurian, 428 to 445 million years old. About 1 mi of the line.
Sandstone, shale. Age: Silurian, 434 to 445 million years old. About 0.9 mi of the line.
Sandstone, shale. Age: Silurian, 434 to 445 million years old. About 0.3 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 Greece reaches Lake Ontario by way of Larkin Creek: about 4 river miles. From the lake it goes down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Greece; river miles along the main stem, rounded.
Greece has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 19° in January. A normal year brings about 102 inches of snow; with the rain, that comes to about 35 inches of water.
On November 14 Greece normally reaches 50° and falls to 34°. The record high is 72°, in 1994; the record low 10°, in 1905. The most rain on this date, 1.13 in, fell in 1972.
Normals 1991–2020 and records since 1871 from the Rochester Area threaded record (Frederick Douglass Greater Rochester International Airport, 6 miles south, 110 ft higher). NOAA, through RCC-ACIS.