The Jasper 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.
Sunny
Mostly sunny; warmer
Mostly sunny
Sunny
Mostly sunny
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4° on Nov. 13, 2019, the coldest reading for this week of the year since 1955. Next is 8° in 1959.
Jasper’s center stands about 470 ft above sea level. Within three miles the land runs from 450 ft to 620 ft, a difference of 170 ft: gently rolling country. The highest named summit within 15 miles is Harbison Hills, about 760 ft, 10 miles east-northeast.
Under the town center the state geologic map shows Raccoon Creek Group (shale, sandstone), from the Carboniferous, 299 to 324 million years old.
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 60×. 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, sandstone. Age: Carboniferous, 299 to 324 million years old. About 23 mi of the line.
Sandstone, limestone. Age: Carboniferous, 324 to 359 million years old. About 0.7 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 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 Jasper reaches the Gulf of America by way of the Patoka, Big Bayou, the Wabash River Old Channel, the Old Channel Wabash, the Ohio and the Mississippi: about 1,280 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Jasper; river miles along the main stem, rounded.
Jasper has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 19° in January. A normal year brings about 13 inches of snow; with the rain, that comes to about 52 inches of water.
On November 14 Jasper normally reaches 56° and falls to 32°. The record high is 79°, in 1955; the record low 11°, in 1986. The most rain on this date, 2.59 in, fell in 1957.
Normals 1991–2020 and records since 1955 at Dubois Srn In Forage Farm, 13 miles east-northeast, 220 ft higher. NOAA, through RCC-ACIS.
