The Lamoille 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 sunny
Partly cloudy; warmer
Showers likely
Showers likely; cooler
Showers likely
Showers likely
Chance of showers
68° on Nov. 12, 1999, the hottest reading for this week of the year since 1910. Next is 67° in 2016.
Lamoille’s center stands about 5,930 ft above sea level. Within three miles the land runs from 5,630 ft to 7,980 ft, a difference of 2,350 ft: mountain country. The highest named summit within 15 miles is Ruby Dome, about 11,340 ft, 7 miles south.
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 3×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sedimentary, volcanic. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 10 mi of the line.
Quartzite. Age: Neoproterozoic to Early Cambrian, 521 to 1,000 million years old. About 5 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 5 mi of the line.
Age: Archean to Tertiary Paleogene. About 2 mi of the line.
Marble. Age: Cambrian to Middle Ordovician, 459 to 542 million years old. About 1 mi of the line.
Granitic, granodiorite, quartz-monzonite. Age: Jurassic, 145 to 202 million years old. About 1 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 Lamoille reaches the Great Basin by way of Lamoille Creek and the Humboldt: about 440 river miles. The Great Basin 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 Lamoille; river miles along the main stem, rounded.
Lamoille has a dry-summer warm-summer continental climate. Summer afternoons average 84° in July; winter nights fall to about 16° in January. About 14 inches of rain fall in a normal year.
On November 14 Lamoille normally reaches 47° and falls to 23°. The record high is 67°, in 2016; the record low 1°, in 1994. The most rain on this date, 0.90 in, fell in 1958.
Normals 1991–2020 and records since 1910 at Arthur 4 NW, 16 miles east-northeast, 330 ft higher. NOAA, through RCC-ACIS.
