The Galesburg 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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5° on Nov. 12, 1911, the coldest reading for this week of the year since 1887. Next is 8° in 1933.
Galesburg’s center stands about 800 ft above sea level. Within three miles the land runs from 770 ft to 1,000 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is The Hogback, about 960 ft, 13 miles north.
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 63×. 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: Carboniferous, 324 to 359 million years old. About 22 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 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 Galesburg reaches Lake Michigan by way of the Kalamazoo: about 80 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Galesburg; river miles along the main stem, rounded.
Galesburg has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 18° in January. About 33 inches of rain fall in a normal year.
On November 14 Galesburg normally reaches 48° and falls to 33°. The record high is 68°, in 1953; the record low 10°, in 1986. The most rain on this date, 1.18 in, fell in 1957.
Normals 1991–2020 and records since 1887 from the Kalamazoo Area threaded record (Kalamazoo Battle Creek International Airport, 8 miles west-southwest). NOAA, through RCC-ACIS.
