In fact, GISS first exceeded 1°C in October 2015, so until then everything over 1°C is a monthly record. October was 1.07, so April is getting back to that. GISS 2016 went from 1.29°C in March to 1.11°C in April. The drop in GISS was higher than other indicators; TempLS mesh was down 0.075°C (China increased it); NCEP/NCAR down 0.15°C. For the lower troposphere, RSS was down about 0.09°C, UAH down 0.02°C.
The Arctic was cooler, and GISS is sensitive to that. Other regional changes were much as discussed in the TempLS post. As usual, I'll show the GISS map and the corresponding TempLS below the fold.
In other news, Arctic Sea Ice is still melting fast..
Here is the GISS map for April:
And here is the TempLS mesh spherical harmonics map for April: