2025 was the third hottest year on record, according to a new report from Copernicus, Europe’s climate change service.

Map of the U.S. notable weather and climate events in 2025.

Increasing greenhouse gas buildup and exceptionally high ocean temperatures drove the significantly hot conditions, the new report said.

With an annual average temperature of 72.6 degrees, 2025 ended up tied with 2023 for the second-hottest year on record in San Antonio.

January was America's coldest in over three decades, but it wasn't enough to keep the planet from setting another monthly global warmth record, according to just released data. January shivering: January 2025 was the Lower 48's chilliest January since 1988 ...