The Knox 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
Mostly cloudy
Mostly cloudy
Partly cloudy
Sunny
Partly cloudy
Partly cloudy
68° on Nov. 13, 1989, the hottest reading for this week of the year since 1962. Next is 68° in 1994.
Knox’s center stands about 1,690 ft above sea level. Within three miles the land runs from 1,320 ft to 1,850 ft, a difference of 530 ft: hilly country. The highest named summit within 15 miles is Edeburn Hill, about 1,950 ft, 15 miles north.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 22×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 18 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 million years old. About 0.7 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 Knox reaches the Gulf of America by way of Fivemile Run, Redbank Creek, the Allegheny, the Ohio and the Mississippi: about 2,070 river miles.
970 miles of the trip are on the Ohio.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Knox; river miles along the main stem, rounded.
Knox has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 17° in January. About 42 inches of rain fall in a normal year.
On November 14 Knox normally reaches 48° and falls to 32°. The record high is 68°, in 1994; the record low 8°, in 1986. The most rain on this date, 1.05 in, fell in 2011.
Normals 1991–2020 and records since 1962 at Dubois Regional Airport, 9 miles northeast, 120 ft higher. NOAA, through RCC-ACIS.
