The Dubois 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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−15° on Nov. 16, 1955, the coldest reading for this week of the year since 1925. Next is −8° in 1959.
Dubois’s center stands about 5,130 ft above sea level. Within three miles the land runs from 5,000 ft to 5,320 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Indian Creek Butte, about 6,940 ft, 14 miles northwest.
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 11×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Basalt. Age: Late Pliocene to Pleistocene, less than 3 million years old. About 11 mi of the line.
Gravel, sand, silt. Age: Quaternary, less than 2.6 million years old. About 7 mi of the line.
Sand. Age: Quaternary, less than 2.6 million years old. About 3 mi of the line.
Gravel, sand, silt. Age: Pliocene to Pleistocene, less than 5.3 million years old. About 1 mi of the line.
Gravel. Age: Quaternary, less than 2.6 million years old. About 1 mi of the line.
Rhyolite. Age: Late Miocene to Late Pliocene, 3 to 6.6 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.
Dubois has a warm-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 15° in January. A normal year brings about 47 inches of snow; with the rain, that comes to about 12 inches of water.
On November 14 Dubois normally reaches 42° and falls to 24°. The record high is 66°, in 1999; the record low −1°, in 1978. The most rain on this date, 0.33 in, fell in 1930.
Normals 1991–2020 and records since 1925 at Dubois Experiment Station, 5 miles north-northeast, 320 ft higher. NOAA, through RCC-ACIS.
