The Tulelake 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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−10° on Nov. 15, 1955, the coldest reading for this week of the year since 1932. Next is −5° in 1985.
Tulelake’s center stands about 4,040 ft above sea level. Within three miles the land runs from 4,030 ft to 4,040 ft, a difference of 10 ft: nearly flat ground. The highest named summit within 15 miles is Mount Dome, about 6,490 ft, 15 miles southwest.
Under the town center the state geologic map shows Quaternary alluvium and marine deposits (coarse-detrital), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 11 mi of the line.
Andesite, basalt. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 4 mi of the line.
Basalt. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 4 mi of the line.
Sandstone, conglomerate. Age: Miocene to Pleistocene, less than 23 million years old. About 1 mi of the line.
Andesite. Age: Late Oligocene to Pleistocene, 2 to 24 million years old. About 0.6 mi of the line.
Andesite, basalt. Age: Late Oligocene to Pleistocene, 2 to 24 million years old. About 0.6 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 Tulelake reaches the Pacific Ocean by way of Tule Lake and the Klamath: about 280 river miles.
Lake on the way: Tule Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tulelake; river miles along the main stem, rounded.
Tulelake has a cold semi-arid climate. Summer afternoons average 86° in July; winter nights fall to about 20° in December. A normal year brings about 23 inches of snow; with the rain, that comes to about 11 inches of water.
On November 14 Tulelake normally reaches 50° and falls to 25°. The record high is 67°, in 1995; the record low 1°, in 1985. The most rain on this date, 0.31 in, fell in 1990.
Normals 1991–2020 and records since 1932 at Tulelake, here. NOAA, through RCC-ACIS.
