The hottest average annual temperature recorded at a single location was **** degrees Celsius in Makkah, Saudi Arabia in 2010 and again in 2016. Makkah, also spelled Mecca, sees millions of Muslim enter the city every year. Although 2010 set the record for the hottest year globally on record, the record was then broken several times throughout the following decade. As of 2019, the hottest year on record globally was 2016, followed by 2019.
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Scientific American. (March 10, 2020). Highest yearly average temperature on record worldwide as of 2019, by select city (in degrees Celsius)* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1110333/hottest-world-cities-highest-annual-temperature/
Scientific American. "Highest yearly average temperature on record worldwide as of 2019, by select city (in degrees Celsius)*." Chart. March 10, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1110333/hottest-world-cities-highest-annual-temperature/
Scientific American. (2020). Highest yearly average temperature on record worldwide as of 2019, by select city (in degrees Celsius)*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1110333/hottest-world-cities-highest-annual-temperature/
Scientific American. "Highest Yearly Average Temperature on Record Worldwide as of 2019, by Select City (in Degrees Celsius)*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 Mar 2020, /statistics/1110333/hottest-world-cities-highest-annual-temperature/
Scientific American, Highest yearly average temperature on record worldwide as of 2019, by select city (in degrees Celsius)* ÌÇÐÄÆƽâ°æ, /statistics/1110333/hottest-world-cities-highest-annual-temperature/ (last visited July 23, 2026)
Highest yearly average temperature on record worldwide as of 2019, by select city (in degrees Celsius)* [Graph], Scientific American, March 10, 2020. [Online]. Available: /statistics/1110333/hottest-world-cities-highest-annual-temperature/
