The Westport 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
Mostly sunny; warmer
Mostly sunny
Partly cloudy
Chance of showers
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Showers likely
−8° on Nov. 14, 1959, the coldest reading for this week of the year since 1940. Next is −5° in 1940.
Westport’s center stands about 1,330 ft above sea level. Within three miles the land runs from 1,320 ft to 1,390 ft, a difference of 70 ft: gently rolling country.
Under the town center the state geologic map shows Foliated to gneissic tonalite and granodiorite (orthogneiss), from the Paleoarchean to Mesoarchean, 2.8 to 3.6 billion years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Orthogneiss. Age: Paleoarchean to Mesoarchean, 2.8 to 3.6 billion years old. About 24 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 Westport reaches the Gulf of America by way of Ashley Creek, the Sauk and the Mississippi: about 2,020 river miles.
Lakes on the way: Lake Pepin and Zumwalles Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Westport; river miles along the main stem, rounded.
Westport has a dry-winter warm-summer continental climate. Summer afternoons average 80° in July; winter nights fall to about 2° in January. About 24 inches of rain fall in a normal year.
On November 14 Westport normally reaches 38° and falls to 24°. The record high is 69°, in 1953; the record low −8°, in 1959. The most rain on this date, 0.22 in, fell in 1951.
Normals 1991–2020 and records since 1940 at Alexandria Chandler Field, 15 miles northwest. NOAA, through RCC-ACIS.
