The Kirby 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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3° on Nov. 13, 2019, the coldest reading for this week of the year since 1942. Next is 10° in 1959.
Kirby’s center stands about 870 ft above sea level. Within three miles the land runs from 830 ft to 920 ft, a difference of 90 ft: gently rolling country.
Under the town center the state geologic map shows Tymochtee and Greenfield Formations, Undivided (dolostone), from the Silurian, 428 to 445 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Dolostone. Age: Silurian, 428 to 445 million years old. About 22 mi of the line.
Dolostone. Age: Silurian, 425 to 445 million years old. About 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 Kirby reaches Lake Erie by way of Perkins Run, Tymochtee Creek and the Sandusky: about 90 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
65 miles of the trip are on the Sandusky.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Kirby; river miles along the main stem, rounded.
Kirby has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 21° in January. About 34 inches of rain fall in a normal year.
On November 14 Kirby normally reaches 52° and falls to 35°. The record high is 70°, in 1971; the record low 12°, in 1986. The most rain on this date, 1.78 in, fell in 1993.
Normals 1991–2020 and records since 1942 at Findlay Airport, 19 miles northwest. NOAA, through RCC-ACIS.
