(CNN) - As we rolled into November, scientists discovered last month was the warmest October on record globally.
The European Union's Copernicus Climate Change Service, which analyzes temperature data from around the planet, said October 2019 was the warmest in their data record, which goes back to 1979.
Last month narrowly edged out the previous record for October, set in 2015, by only 0.01 degrees Celsius (0.018 degrees Fahrenheit).
This year has seen multiple other hottest-month records, including July, which Copernicus said was the warmest month of all on record, replacing the record set in July 2016.
Every month in 2019 has ranked among the four warmest for the month in question.