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Snowfall Trends
As of March 30, 2026, the western U.S. is experiencing a historic snow drought, with snow water equivalent at its lowest record for April 1 and 65% below the 1991-2020 normal. This condition is attributed to a record-warm winter and a record-shattering March heat wave fueled by heat-trapping pollution. Long-term trends from 1955 to 2023 show an 18% average decline in April 1 snowpack across 652 monitoring stations, with snow droughts growing 28% longer between 1980 and 2018. These trends increase risks for water supplies, hydropower, and wildfires, with projections suggesting a further 25% decline in snow water equivalent by 2050.
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Document type: Fact sheet