November 2023 was by far the hottest November on record globally in analyses dating back to 1850, said NOAA’s National Centers for Environmental Information on December 14. NOAA, NASA, the Japan Meteorological Agency, and the European Copernicus Climate Change Service all rated November 2023 as the warmest November on record, beating the previous November record by a large margin.
According to NOAA, November global temperatures were a remarkable 1.44 degrees Celsius (2.59 °F) above the 20th-century average. Using NASA data, November 2023 was 1.67 degrees Celsius above the temperature of the 1880-1899 period, which is commonly called “preindustrial” (the difference between the 1951-1980 baseline reported on the NASA website and the 1880-1899 period is 0.226 °C). This is the second-highest departure from average in the NASA database, behind only September 2023 (1.7 °C). Their other top-five departures from average are February 2016 (1.59 °C), March 2016 (1.58 °C), and October 2023 (1.57 °C).
Land and ocean areas each had their warmest November on record in 2023, and November was the eighth consecutive month with record-high global ocean temperatures. South America, Africa, and Asia each had their warmest November on record. November 2023 ranked second-warmest on record for North America and fifth-warmest for Oceania. Europe tied 2003 for its 15th-warmest November on record. The month ranked as the 19th-warmest November on record in the United States.