January 2025 was quite unexpectedly the warmest January on record at 1.75C above preindustrial, beating the prior record set in 2024.

This is despite the presence of La Niña conditions in the tropical Pacific, with the El Niño event of 2023/2024 long faded. https://www.theclimatebrink.com/p/january-sets-an-unexpected-temperature
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