The Lynden 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.
Showers likely
Chance of showers
Chance of showers
Mostly sunny
Mostly cloudy
Partly cloudy
Partly cloudy
6.59 inches of rain fell in two days, the most for this week of the year since records began in 1903. The next wettest, 4.28 inches, fell in 1910.
Lynden’s center stands about 100 ft above sea level. Within three miles the land runs from 40 ft to 150 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Sumas Mountain, about 3,420 ft, 11 miles east-southeast.
Under the town center the state geologic map shows Younger glacial drift (fine-detrital, coarse-detrital), from the Pleistocene, 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 7×. 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, sand. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 6 mi of the line.
Fine-detrital, coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Conglomerate. Age: Eocene to Oligocene, 23 to 56 million years old. About 2 mi of the line.
Serpentinite. Age: Middle Jurassic to Late Jurassic, 145 to 175 million years old. About 0.4 mi of the line.
Graywacke. Age: Late Devonian to Early Jurassic, 175 to 384 million years old. About 0.3 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 Lynden reaches the Pacific Ocean by way of Fishtrap Creek and the Nooksack: about 18 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Lynden; river miles along the main stem, rounded.
Lynden has a warm-summer Mediterranean climate. Summer afternoons average 77° in August; winter nights fall to about 32° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 50 inches of water.
On November 14 Lynden normally reaches 49° and falls to 36°. The record high is 64°, in 1953; the record low 9°, in 1955. The most rain on this date, 3.42 in, fell in 2021.
Normals 1991–2020 and records since 1903 at Clearbrook, 6 miles east-northeast. NOAA, through RCC-ACIS.
