In 2023, the December snow cover extent in the Northern Hemisphere reached million square kilometers. This figure represents a decline of over two percent in comparison to the previous December. The Northern Hemisphere's snow cover extent recorded a record high in December 2012, at some **** million square kilometers.
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National Oceanic and Atmospheric Administration. (August 7, 2024). Extent of snow cover in December in the Northern Hemisphere from 1970 to 2023 (in million square kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
National Oceanic and Atmospheric Administration. "Extent of snow cover in December in the Northern Hemisphere from 1970 to 2023 (in million square kilometers)." Chart. August 7, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
National Oceanic and Atmospheric Administration. (2024). Extent of snow cover in December in the Northern Hemisphere from 1970 to 2023 (in million square kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
National Oceanic and Atmospheric Administration. "Extent of Snow Cover in December in The Northern Hemisphere from 1970 to 2023 (in Million Square Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 7 Aug 2024, /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
National Oceanic and Atmospheric Administration, Extent of snow cover in December in the Northern Hemisphere from 1970 to 2023 (in million square kilometers) ÌÇÐÄÆƽâ°æ, /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/ (last visited July 31, 2026)
Extent of snow cover in December in the Northern Hemisphere from 1970 to 2023 (in million square kilometers) [Graph], National Oceanic and Atmospheric Administration, August 7, 2024. [Online]. Available: /statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
