Global Climate Report - April 2018
2018 year-to-date temperatures versus previous years

« Global Climate Report - April 2018

2018 year-to-date temperatures versus previous years


2018 year-to-date anomalies through April compared to nine warmest years on record
Global Year to Date Temperature Anomalies

This graphic compares the year-to-date temperature anomalies for 2018 (black line) to what were ultimately the nine warmest years on record: 2016, 2015, 2017, 2014, 2010, 2013, 2005, 2009, and 1998. Each month along each trace represents the year-to-date average temperature anomaly. In other words, the January value is the January average temperature anomaly, the April value is the average anomaly of both January through April, and so on. The average global land and ocean surface temperature for January–April 2018 was 0.76°C (1.37°F) above the 20th century average of 13.7°C (56.7°F)—the fifth highest global land and ocean temperature for January–April in the 1880–2018 record.

The top five warmest January–April were: 2016 (1st), 2017 (2nd), 2015 (3rd), 2010 (4th), and 2018 (5th).

The anomalies themselves represent departures from the 20th century average temperature. The graph zooms into the warmest part of the entire history.