Record heat in the US south-west:
Just like they had to in Australia in the southern hemisphere summer.
Record heat in Iran and Europe:
The heatwaves in Europe have been made more intense by climate change:
After the last great El Niño in 1998, global temperatures dropped 0.2 degrees C in 1999. The post El Niño decline so far this year has been 0.17 degrees (January to May 2017 vs same period 2016) and June's data will likely reduce this still fall further.