The Chandler 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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79° on Nov. 14, 1999, the hottest reading for this week of the year since 1973. Next is 72° in 2001.
Chandler’s center stands about 1,710 ft above sea level. Within three miles the land runs from 1,630 ft to 1,830 ft, a difference of 200 ft: rolling country.
Under the town center the state geologic map shows Undifferentiated (conglomerate, sandstone, mudstone), from the Late Cretaceous, 72 to 100 million years old.
The section below crosses 2 rock units mapped at the surface.
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.
Conglomerate, sandstone, mudstone. Age: Late Cretaceous, 72 to 100 million years old. About 15 mi of the line.
Quartzite, mudstone. Age: Paleoproterozoic, 1.6 to 2 billion years old. About 9 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 Chandler reaches the Gulf of America by way of Chanarambie Creek, the Rock River, the Big Sioux, the Missouri and the Mississippi: about 2,090 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Chandler; river miles along the main stem, rounded.
Chandler has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 4° in January. A normal year brings about 46 inches of snow; with the rain, that comes to about 30 inches of water.
On November 14 Chandler normally reaches 41° and falls to 22°. The record high is 79°, in 1999; the record low −4°, in 2014. The most rain on this date, 1.12 in, fell in 2024.
Normals 1991–2020 and records since 1973 at Lake Wilson, 5 miles north. NOAA, through RCC-ACIS.
