๐ŸŒŽ 2025 Climate Review

United States and global weather and climate analysis for 2025

Welcome back to ClimateWatch, your go-to source for the latest climate news and information.

This weekโ€™s newsletter is all about reviewing the notable climate and weather events across the globe and in the United States that shaped 2025.

Enjoy!

๐ŸŒ Global 2025 Climate and Weather Analysis

2025 officially ranked as the third-warmest year since global records began in 1850. The annual global surface temperature was 2.11F above the 20th-century average, falling behind the record-setting year of 2024 by 0.22F and the second-warmest year in 2023 by 0.04F. Every continent, as well as the Arctic region, ranked within its top 10 warmest years. Europe, Oceania, and the Arctic recorded their second-warmest year on record. Globally, land surfaces recorded their second-warmest year and ocean surfaces ranked third. Cooler-than-average conditions were observed in the tropical central and eastern Pacific Ocean and eastern Antarctica. Upper ocean heat content was record high in 2025. Annual sea ice extent for both the Arctic and Antarctic regions ranked among the three lowest years on record. The Northern Hemisphere snow cover extent was the third lowest on record.

๐Ÿ‡บ๐Ÿ‡ธ United States 2025 Climate and Weather Analysis

The results are in and 2025 was the fourth-warmest year on record for the United States. Annual temperatures across the CONUS averaged 54.6F in 2025, which was 2.6F above the 20th-century average. The western third of the country experienced the most pronounced warmth, and the region from the West Coast through the Rocky Mountains recorded its warmest annual temperature on record. Utah and Nevada recorded their warmest years on record, with 10 other states experiencing one of their four warmest years ever. For the first time since 2015, no hurricanes made landfall in the U.S. or its territories in 2025. The tornado in Enderlin, North Dakota was the first verified EF-5 since 2013. California had its second-and-third-most destructive wildfires on record. The Texas Hill Country experienced a 1-in-100- to 1-in-1,000-year flood that killed at least 135 people.

๐Ÿ”ฅ U.S. Billion-Dollar Disasters in 2025

As of July 28, 2025, Climate Central manages and maintains the billion-dollar disaster dataset, building upon the foundational work established by NOAA. Climate Central recently released their 2025 billion-dollar disasters report. 2025 ranked as the third-highest year (after 2023 and 2024) for billion-dollar weather and climate disasters, with 23 such events costing a total of $115 billion in damages. The January 2025 Los Angeles wildfires were the costliest event of the year, and the costliest wildfire on record, with $61.2 billion in damages. It was twice as costly as the previous record wildfire. Severe weather accounted for a record 21 billion-dollar disasters in 2025, consisting of a series of spring and summer tornado outbreaks in the central U.S. Since billion-dollar disaster records began in 1980, the U.S. has sustained 426 billion-dollar disasters, with a total cost exceeding $3.1 trillion. The frequency of billion-dollar disasters has dramatically increased due to the rise in extreme weather and a growing number of people, homes, and businesses in harms way.

Thatโ€™s all for this week! If you enjoyed our newsletter, please share it with your friends!

-Hannah, Eric, Amy, and Nick

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