Global January temperature anomalies relative to the pre-industrial baseline

1850-1900 baseline; Annually, 1940-2025

A column chart showing January temperature anomalies relative to the 1850-1900 baseline. There's a marked upward trend, with recent Januaries being among the warmest on record. January 2025 was the warmest on record, at 1.75°C above the 1850-1900 baseline.