The week's hottest temperature was 111.2 degrees Fahrenheit (44.0 degrees Celsius) at Nouakchott, Mauritania. This was a record high for the date and for the month of October.
The week's coldest temperature was minus 89.1 degrees Fahrenheit (minus 67.3 degrees Celsius) at Russia's Vostok Antarctic research station.
Temperatures were tabulated from the more than 10,000 worldwide synoptic weather stations. The United Nations World Meteorological Organization sets the standards for weather observations, and provides a global telecommunications circuit for data distribution.