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File: enso-blog-la-nina-all-counts-snowfall-map-20241022.png

Map of North America showing the high number of La Niña winters with below-average snowfall across the southern half of the United States

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This map shows how many of the 22 historical La Niña winters from 1959–2024 had below-average snowfall from January–March. Red colors mean those places had below-average snowfall more than half the time. Gray colors mean those places had below-average snowfall less than half the time. The long-term trend has been removed to better show the influence of La Niña on its own. NOAA Climate.gov map, based on ERA5 reanalysis data and analysis by Michelle L’Heureux.