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Event Tracker

The climate behind the weather.

Map image for How spring plant milestones are shifting in response to changing climate

How spring plant milestones are shifting in response to changing climate

June 25, 2025

Map image for First blooms of the 2025 spring season were earlier than average across most of the United States

First blooms of the 2025 spring season were earlier than average across most of the United States

June 11, 2025

Map image for 2025 summer minimum sea ice extent in Antarctic tied for second-lowest on record

2025 summer minimum sea ice extent in Antarctic tied for second-lowest on record

April 18, 2025

Map image for 2025 Winter maximum sea ice extent in Arctic smallest on record

2025 Winter maximum sea ice extent in Arctic smallest on record

April 9, 2025

Map image for First signs of spring make their way northward across the U.S.

First signs of spring make their way northward across the U.S.

March 20, 2025

Map image for The weather and climate influences on the January 2025 fires around Los Angeles

The weather and climate influences on the January 2025 fires around Los Angeles

February 19, 2025

Map image for Historic January 2025 snowstorm in the Southern U.S.

Historic January 2025 snowstorm in the Southern U.S.

January 29, 2025

Map image for Record-breaking lake effect snow arrives as winter starts

Record-breaking lake effect snow arrives as winter starts

December 11, 2024

Map image for Several Great Lakes experience record-warm water temperatures heading into winter

Several Great Lakes experience record-warm water temperatures heading into winter

December 9, 2024

Map image for Unusual fire risk across the Northeast in fall of 2024

Unusual fire risk across the Northeast in fall of 2024

November 21, 2024