California’s mountains saw up to 15 feet of snow during the atmospheric river events between Dec. 26 and Jan. 17. This brings the statewide average snow depth to 245% of average for this time of year, Andrew writes.

Why it matters: The mountain snowpack is a crucial source of water for drinking and agriculture during the dry season in lower elevations of the state.

By the numbers: Mammoth Mountain saw 240 inches, according to NOAA, with 181.7″ at Donner Pass.

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