The map shows global yearly temperatures from 1880 to 2010, represented as the difference from the baseline period (1950 - 1980), where red indicates warmer temperatures and blue indicates cooler temperatures. You can choose from temperature sets computed over land (by fixed land-based climate stations), over the ocean, or the full mixed set. Other available data include major population centers and weather stations. Click a weather station pin to see more information and the historical temperature record for that station.
Click and drag to move the map. Zoom by using the [+] and [-] buttons, the mouse wheel, or by double clicking on the map.