(6 of 6) Significant Climate Events Map: January saw 4 named tropical storms form — one reached tropical cyclone strength. See more: NOAANCEI StateOfClimate
Globally, January 2023 saw the lowest January sea ice extent on record. This surpassed the previous record low, set in 2017, by 150,000 square miles.
Antarctic sea ice extent hit a record low for January at 1.25 million square miles, which is about 700,000 square miles below the 1991-2020 average. This January’s extent was roughly 210,000 square miles smaller than the previous record low from January 2017. Arctic sea ice extent in January averaged 5.15 million square miles, which is about 243,000 square miles below the 1991-2020 average. This marks the third-smallest January extent in the 45-year record. January precipitation was above average across parts of northeastern and inland eastern Northern America, the central and southern coast of the western U.S., central Europe, central Asia and eastern Oceania. Auckland, New Zealand, recorded its wettest month on record since 1853.
In the U.S., nine back-to-back atmospheric rivers pummeled California, which brought a total of 32 trillion gallons of rain and snow to the state this January. Meanwhile, drier-than-average conditions covered much of Mexico and parts of the northwestern U.S., as well as eastern, southern and western Asia. Four named storms spun across the globe in January 2023, which is below the 1991-2020 average for January.
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