2025 Ties for Warmest Year

In their latest analysis, NASA scientists have reported that the global surface temperature in 2025 was slightly warmer than in 2023, though the difference falls within the margin of error, essentially tying the two years. This data confirms that 2024 remains the hottest year on record since measurements began in 1880.

The comprehensive study conducted by NASA’s Goddard Institute for Space Studies utilized air temperature data collected from over 25,000 meteorological stations worldwide, alongside measurements from ship- and buoy-based instruments and Antarctic research facilities. The methods used in the analysis are designed to address changes in the distribution of temperature recording stations and to mitigate urban heating effects that could distort the findings.

Further affirming these findings, independent research by other prominent scientific bodies such as the National Oceanic and Atmospheric Administration, Berkeley Earth, the UK’s Hadley Centre, and Copernicus Climate Services in Europe also ranked 2025 as the third warmest year on record. Despite employing varied methodologies and models, all agencies noted a consistent global warming trend. Detailed information on the global surface temperatures and the methodologies used in the analysis are available on NASA’s website, inviting further public scrutiny and understanding of ongoing climate changes.