
Image caption
Global year-to-date temperature anomalies by month for the 10 warmest years on record and 2023 year-to-date values through May. May 2023’s year-to-date temperature anomaly ranks fourth highest among the 10 warmest years, but it is roughly as large as the annual 2020 anomaly. 2020 was the second-warmest year on record. NOAA Climate.gov image, adapted from original by NOAA NCEI.