The Lakeville 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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73° on Nov. 11, 2020, the hottest reading for this week of the year since 1948. Next is 69° in 2006.
Lakeville’s center stands about 630 ft above sea level. Within three miles the land runs from 300 ft to 850 ft, a difference of 550 ft: hilly country. The highest named summit within 15 miles is Duck Mountain, about 1,240 ft, 9 miles south-southwest.
Under the town center the state geologic map shows Devonian granite-quartz monzonite (hornblende accessory mineral), from the Devonian, 359 to 422 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 26×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Quartz-monzonite. Age: Devonian, 359 to 422 million years old. About 14 mi of the line.
Age: Devonian, 359 to 422 million years old. About 6 mi of the line.
Mudstone. Age: Ordovician, 445 to 487 million years old. About 2 mi of the line.
Granite. Age: Devonian, 359 to 422 million years old. About 1 mi of the line.
Mudstone. Age: Ordovician, 445 to 487 million years old. About 0.9 mi of the line.
Mudstone, sandstone. Age: Cambrian to Ordovician, 445 to 542 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 Lakeville reaches the Atlantic Ocean by way of Junior Lake, the Grand Lake Stream and the Saint Croix: about 85 river miles.
Lakes on the way: Junior Lake and Lewy Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lakeville; river miles along the main stem, rounded.
Lakeville has a warm-summer humid continental climate. Summer afternoons average 78° in July; winter nights fall to about 9° in January. A normal year brings about 74 inches of snow; with the rain, that comes to about 46 inches of water.
On November 14 Lakeville normally reaches 45° and falls to 29°. The record high is 67°, in 2010; the record low 7°, in 1990. The most rain on this date, 1.60 in, fell in 2006.
Normals 1991–2020 and records since 1948 at Grand Lake Stream, 17 miles east-southeast, 340 ft lower. NOAA, through RCC-ACIS.
