Does your location usually experience its coldest day of the year in early, mid, or late winter? Find an answer with this map based on weather observations between 1991-2020.
It's been 45 years since the planet had a cooler-than-average year.
La Niña is likely near its peak strength, but that doesn't mean its impacts will disappear anytime soon.
NOAA National Centers for Environmental Information recaps the 2021 climate for the United States.
The fingerprints of La Niña were all over the global precipitation map.
Ice older than 4 years once dominated the winter ice pack in the Arctic. Today, only a tiny fraction of old, thick survives.
But fires and other disturbances create patches of "browning" in satellites' view of Arctic vegetation.
Greenland has lost ice mass every year since 1998. Losses in 2021 would have added about 0.2 millimeters to global sea level.
A record-warm autumn boosted Arctic 2020-21 surface temperatures to the rank of seventh-warmest year on record since 1900.
Climate change is transforming the Arctic into a ‘dramatically different state.’ Browse this collection of image highlights from NOAA's 2021 Arctic Report Card.