Search results
How much have temperatures risen in countries across the world? Our World in Data is free and accessible for everyone. Help us do this work by making a donation. The temperature of the air measured 2 meters above the ground, encompassing land, sea, and in-land water surfaces.
This graph shows the change in global surface temperature compared to the long-term average from 1951 to 1980. Earth’s average surface temperature in 2023 was the warmest on record since recordkeeping began in 1880 (source: NASA/GISS).
20 gru 2023 · The temperature anomaly is calculated by comparing the average surface temperature of a specific time period (e.g., a particular year or month) to the mean surface temperature of the same period from 1991 to 2020.
Comparing the average temperature of land, ocean, or land and ocean combined for any month or multi-month period to the average temperature for the same period over the 20th century shows if conditions are warmer or cooler than the past. Where do these data come from?
18 sty 2024 · The animated bar graph shows global temperatures each year from 1976 (left) to 2023 (right) compared to the 1901-2000 average. 1976 (blue bar at far left) was the last time a year was cooler than the 20th-century average. 2023 (far right) set a new record for warmest year.
NOAA Climate.gov graph, based on data from the National Centers for Environmental Information. Global average surface temperature has risen 0.14 degrees Fahrenheit per decade since 1880. The rate of warming has more than doubled since 1981.
These figures are checked before they are used to calculate the global-average temperature. The monthly updates are combined with archives of historical observations that have been gathered...
