Northern Sierra Nevada's Lovers Leap at Giant Gap American River Gorge
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Donner Summit Average Snowfall & Snowpack Depth


Donner Summit Snowfall and Snowpack Data

Northern Sierra Nevada snowfall and precipitation data have been gathered for 130 years, a relatively lengthy weather record for this western mountain range. The record began in 1870 with basic precipitation measurements taken every eight hours by Central Pacific Railroad employees at stations located along the tracks running over Donner Pass. Today's extremely accurate readings are taken by hydrologists, meteorologists, and remote sensors linked to satellites which offer the weatherwise individual real-time analysis.