The Ririe 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.
Mostly cloudy
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Showers likely; cooler
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−11° on Nov. 15, 2014, the coldest reading for this week of the year since 1977. Next is −8° in 1978.
Ririe’s center stands about 4,970 ft above sea level. Within three miles the land runs from 4,920 ft to 5,130 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Twin Peaks, about 7,730 ft, 15 miles east.
Under the town center the state geologic map shows Alluvial deposits (gravel, sand, silt), from the Quaternary, less than 2.6 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 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gravel, sand, silt. Age: Quaternary, less than 2.6 million years old. About 17 mi of the line.
Rhyolite. Age: Late Miocene to Late Pliocene, 3 to 6.6 million years old. About 5 mi of the line.
Rhyolite. Age: Pleistocene, 0.6 to 2 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.
Ririe has a warm-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 14° in January. About 13 inches of rain fall in a normal year.
On November 14 Ririe normally reaches 43° and falls to 24°. The record high is 63°, in 1999; the record low −2°, in 1978. The most rain on this date, 0.42 in, fell in 1996.
Normals 1991–2020 and records since 1977 at Rexburg Byu Idaho, 12 miles north. NOAA, through RCC-ACIS.
