TempLS mesh, reported here (as of 8 May, 4263 stations, China still to arrive), was down from 1.032°C in March to 0.928 in April (base 1961-90). This is slightly smaller drop than the NCEP/NCAR index (0.15), but larger than the satellite reductions(UAH 0.02; RSS 0.09). TempLS grid dropped by more (0.136°C), which is similar to NCEP/NCAR.
The spherical harmonics map is here:
Again unusually warm in Russia and W North America (except Labrador strait region). Not so warm in Arctic, cold over Hudson's Bay.
In the attributions plot, the main point of interest is that SST has risen again. The land pattern is similar to recent, but more subdued.
In other news, JAXA Arctic Sea Ice shows continued melting and record low levels; since mid April the margin between it and previous years has become quite marked.
Earth Hour supporters propose ‘Carbon Law’
23 minutes ago