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nyas12182-sup-0001-FigureS1.docx247KFigure S1. The 4.3-km elevational gradient created by Mt. Rainier (A) generates large gradients in temperature (B), winter precipitation (C, falling primarily as snow), and summer precipitation (D). Picture© Michael Arthur Hill/Wikimedia Commons/CC-BY-SA-3.0. Data in B–D are smoothed from 800×800-m grid cell estimates of 30-year monthly temperature and precipitation averages (1971–2000) through the PRISM climate model.[79] Mean annual temperature is the average temperature across all months; winter precipitation, the sum of November–March values; and summer precipitation, the sum of May–September values.

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