Saturday, August 14, 2021

July 2021 was the warmest July on record for the globe; global land surface was also record warm


August 13, 2021

The global temperature for July 2021 was the highest for July in the 142-year NOAA record, which dates back to 1880. The year-to-date (January-July) global surface temperature tied as the sixth highest on record. According to NCEI’s Global Annual Temperature Rankings Outlook, it is very likely that the year 2021 will rank among the 10 warmest years on record.


The July 2021 global surface temperature was 1.67°F (0.93°C) above the 20th-century average of 60.4°F (15.8°C) — the highest for July in the 142-year record. This value was only 0.02°F (0.01°C) higher than the previous record set in 2016, and tied in 2019 and 2020. The seven warmest Julys have all occurred since 2015. July 2021 marked the 45th consecutive July and the 439th consecutive month with temperatures, at least nominally, above the 20th-century average.

Climatologically, July is the warmest month of the year. With July 2021 the warmest July on record, at least nominally, this resulted in the warmest month on record for the globe.

The global land-only surface temperature for July 2021 was 2.52°F (1.40°C) above average and the highest July for the land-only surface temperature on record, surpassing the previous record set in 2020 by 0.31°F (0.17°C). The warmth across the global land surfaces was mainly driven by the very warm Northern Hemisphere land, which also had its highest July temperature at 2.77°F (1.54°C) above average.


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