Last month was the hottest May since records began, according to NASA data.
It's the 13th consecutive month world average temperatures have broken records. 2015 was the hottest year on record, and 2016 is on track to beat it by a whopping 0.3degC.
This May was 0.93degC above the 1950-1981 average and 0.25degC hotter than May last year.
"The state of the climate so far this year gives us much cause for alarm," David Carlson, director of the World Climate Research Programme, said in a statement.
"Exceptionally high temperatures. Ice melt rates in March and May that we don't normally see until July. Once-in-a-generation rainfall events. The super El Nino is only partly to blame. Abnormal is the new normal."
Finland, Alaska and Australia all posted abnormally high temperatures. In Finland it was between 3 and 5degC hotter than normal in many parts of the country, and Australia was 1.8degC hotter overall, according to its Bureau of Meteorology.
NASA's data shows temperatures in the North Island between 1 and 2degC higher than normal, and between 0.2 and 1degC hotter in the south.
Map showing temperature anomalies in Fahrenheit (NASA)
Last week New Zealand researchers measured atmospheric carbon dioxide at 400 parts per million, a level not seen in more than 3 million years.
Newshub.
