2023 year-to-date temperatures versus previous years

Global Year to Date Temperature Anomalies

This graphic depicts the ten warmest years on record (1850-2022): 2016, 2020, 2019, 2015, 2017, 2022, 2021, 2018, 2014, and 2010. 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 February value is the average anomaly of both January and February, and so on.

The average global land and ocean surface temperature for January–December 2023 was 1.18°C (2.12°F) above the 20^th century average of 13.9°C (57.0°F)—the highest global land and ocean temperature for January–December in the 1850–2023 record.

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