Snow cover plays an important role in the regulation of climate due to its reflective properties. Melting snow also provides water for drinking and crop irrigation in many regions around the world. In January 2023, the snow cover extent in North America reached 15.51 million square kilometers, slightly up from the previous January.
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National Oceanic and Atmospheric Administration. (March 15, 2023). Extent of snow cover in January in North America from 1970 to 2023 (in million square kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 29, 2026, from /statistics/1039671/snow-cover-extent-in-north-america/
National Oceanic and Atmospheric Administration. "Extent of snow cover in January in North America from 1970 to 2023 (in million square kilometers)." Chart. March 15, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 29, 2026. /statistics/1039671/snow-cover-extent-in-north-america/
National Oceanic and Atmospheric Administration. (2023). Extent of snow cover in January in North America from 1970 to 2023 (in million square kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 29, 2026. /statistics/1039671/snow-cover-extent-in-north-america/
National Oceanic and Atmospheric Administration. "Extent of Snow Cover in January in North America from 1970 to 2023 (in Million Square Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 15 Mar 2023, /statistics/1039671/snow-cover-extent-in-north-america/
National Oceanic and Atmospheric Administration, Extent of snow cover in January in North America from 1970 to 2023 (in million square kilometers) ÌÇÐÄÆƽâ°æ, /statistics/1039671/snow-cover-extent-in-north-america/ (last visited July 29, 2026)
Extent of snow cover in January in North America from 1970 to 2023 (in million square kilometers) [Graph], National Oceanic and Atmospheric Administration, March 15, 2023. [Online]. Available: /statistics/1039671/snow-cover-extent-in-north-america/
