The Sigurd 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
Partly cloudy; warmer
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Showers likely
Partly cloudy
Showers likely
Showers likely
−12° on Nov. 17, 1964, the coldest reading for this week of the year since 1893. Next is −2° in 1955.
Sigurd’s center stands about 5,220 ft above sea level. Within three miles the land runs from 5,210 ft to 6,050 ft, a difference of 840 ft: hilly country. The highest named summit within 15 miles is White Pine Peak, about 10,200 ft, 14 miles west.
Under the town center the state geologic map shows Alluvium and colluvium (unconsolidated), from the Quaternary, less than 2.6 million years old.
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 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 6 mi of the line.
Siltstone-mudstone, sandstone. Age: Late Cretaceous to Early Eocene, 48 to 84 million years old. About 4 mi of the line.
Felsic-volcanic, andesite. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 4 mi of the line.
Limestone. Age: Late Paleocene to Early Eocene, 48 to 59 million years old. About 4 mi of the line.
Felsic-volcanic. Age: Late Oligocene to Middle Miocene, 12 to 28 million years old. About 4 mi of the line.
Mudstone. Age: Middle Jurassic, 164 to 175 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 Sigurd reaches Sevier Lake by way of the Sevier: about 220 river miles. Sevier Lake has no outlet to the sea: the water leaves only by evaporating or soaking into the ground.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Sigurd; river miles along the main stem, rounded.
Sigurd has a cold semi-arid climate. Summer afternoons average 90° in July; winter nights fall to about 16° in December. A normal year brings about 18 inches of snow; with the rain, that comes to about 8 inches of water.
On November 14 Sigurd normally reaches 54° and falls to 24°. The record high is 74°, in 1967; the record low 5°, in 1916. The most rain on this date, 0.45 in, fell in 1991.
Normals 1991–2020 and records since 1893 at Richfield Radio Ksvc, 8 miles southwest. NOAA, through RCC-ACIS.
