Dec. 5, 2019: 410.45 ppm
Dec. 5, 2018: 408.44 ppm
Nov. 2019: 410.27 ppm
Nov. 2018: 408.02 ppm
2nd Warmest Oct. since 1880: 2019
Coolest Oct. since 1880: 1912
There are no articles in this category. If subcategories display on this page, they may contain articles.