March 2026 was the 4th warmest March on record globally. Note the high-amplitude wavy pattern of anomalies across the Northern Hemisphere.

This month was about 1.48°C above the 1850-1900 pre-industrial average. The last 12-months have been about 1.43°C above it.

Summary of month: https://climate.copernicus.eu/surface-air-temperature-march-2026