the monthly global climate report for September 2020 was issued overnight by a unit of NOAA. It's available on a page marked ncdc.noaa.gov..
Earth's climate continued a clear warming trend in the month. Key details of the report follow in both text and graphic form.
NOAA:
"Averaged as a whole, the September 2020 global land and ocean surface temperature was the highest for September in the 141-year record at 0.97°C (1.75°F) above the 20th century average of 15.0°C (59.0°F). This value surpassed the previous record set in 2015 and, again in 2016, by only 0.02°C (0.04°F).
"The month of September 2020 marked the 44th consecutive September and the 429th consecutive month with temperatures, at least nominally, above the 20th century average. The ten warmest Septembers have occurred since 2005, while the seven warmest Septembers have occurred in the last seven years (2014–2020)."
"The global land-only surface temperature for September was also the highest on record at 1.47°C (2.65°F) above average. The previous record of 1.40°C (2.52°F) was set in September 2016. Record warm September temperatures across the global land encompassed 12.55% of the global land surface—the highest on record. This was also the sixth highest percentage for record warm land temperatures for any month in the 837-monthly record.
" Meanwhile, the global ocean-only surface temperature for September 2020 was 0.77°C (1.39°F) and the fourth highest since global records began in 1880. Only Septembers of 2015, 2016, and 2019 were warmer.
"The Southern Hemisphere land and ocean surface temperature departure from average for September 2020 was also the highest on record at 0.70°C (1.26°F) above average. This value exceeded the previous record set in September 2015, 2017, and 2018 by 0.01°C (0.02°F). The Southern Hemisphere's five warmest Septembers have occurred since 2014.
" Meanwhile, the Northern Hemisphere had its third-warmest September on record with a combined land and ocean surface temperature departure from average of 1.21°C (2.18°F)."
