The Fulton 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.
Partly cloudy
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3.48 inches of rain fell in two days, the most for this week of the year since records began in 1902. The next wettest, 3.20 inches, fell in 1920.
Fulton’s center stands about 130 ft above sea level. Within three miles the land runs from 80 ft to 690 ft, a difference of 610 ft: hilly country. The highest named summit within 15 miles is Mount Saint Helena, about 4,310 ft, 14 miles north-northeast.
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 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 8 mi of the line.
Sandstone, mudstone. Age: Late Cretaceous to Pliocene, 2.6 to 100 million years old. About 5 mi of the line.
Melange. Age: Jurassic to Cretaceous, 66 to 202 million years old. About 3 mi of the line.
Dacite. Age: Late Miocene to Late Pliocene, 3 to 7 million years old. About 3 mi of the line.
Sandstone, mudstone. Age: Jurassic to Cretaceous, 66 to 202 million years old. About 3 mi of the line.
Sandstone, conglomerate. Age: Miocene to Pleistocene, less than 23 million years old. About 2 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 Fulton reaches the Pacific Ocean by way of Mark West Creek and the Russian: about 35 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fulton; river miles along the main stem, rounded.
Fulton has a warm-summer Mediterranean climate. Summer afternoons average 84° in September; winter nights fall to about 38° in January. About 32 inches of rain fall in a normal year.
On November 14 Fulton normally reaches 68° and falls to 42°. The record high is 88°, in 2008; the record low 22°, in 1916. The most rain on this date, 2.27 in, fell in 1953.
Normals 1991–2020 and records since 1902 at Santa Rosa, 4 miles southeast. NOAA, through RCC-ACIS.
