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 Statista. Retrieved July 12, 2025, from https://www.statista.com/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. Statista. Accessed July 12, 2025. https://www.statista.com/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). Statista. Statista Inc.. Accessed: July 12, 2025. https://www.statista.com/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)." Statista, Statista Inc., 7 Aug 2024, https://www.statista.com/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) Statista, https://www.statista.com/statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/ (last visited July 12, 2025)
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: https://www.statista.com/statistics/505589/snow-cover-extent-in-december-in-the-northern-hemisphere/
