The Glendale 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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95° on Nov. 13, 1999, the hottest reading for this week of the year since 1964. Next is 92° in 1967.
Glendale’s center stands about 1,150 ft above sea level. Within three miles the land runs from 1,080 ft to 1,200 ft, a difference of 120 ft: gently rolling country. The highest named summit within 15 miles is Camelback Mountain, about 2,580 ft, 13 miles east.
Under the town center the state geologic map shows Holocene surficial deposits (silt, clay), from the Holocene, less than 10,000 years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt, clay. Age: Holocene, less than 10,000 years old. About 15 mi of the line.
Gravel, sand. Age: Pleistocene, less than 0.8 million years old. About 7 mi of the line.
Sand, gravel. Age: Holocene, less than 10,000 years old. About 2 mi of the line.
Metasedimentary, metavolcanic, gneiss. Age: Paleoproterozoic, 1.6 to 1.8 billion years old. About 0.9 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 Glendale reaches the Gulf of California by way of the Agua Fria, the Gila and the Colorado: about 330 river miles.
200 miles of the trip are on the Gila.
Often dry. About 70% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Glendale; river miles along the main stem, rounded.
Glendale has a hot desert climate. Summer afternoons average 105° in July; winter nights fall to about 40° in December. About 8 inches of rain fall in a normal year.
On November 14 Glendale normally reaches 75° and falls to 48°. The record high is 94°, in 1999; the record low 38°, in 1985. The most rain on this date, 0.99 in, fell in 1993.
Normals 1991–2020 and records since 1964 at Youngtown, 8 miles west-northwest. NOAA, through RCC-ACIS.
