...
The plot below shows a map of the global temperature anomalies for JJA 2018, calculated from 00, 06, 12 and 18UTC ERA-Interim analyses.
The plot below shows a Howmoller plot of 850hPa temperature anomalies averaged between 50-55N, starting from 1 April on the bottom. The anomalous heat started already in April and May for central-northern Europe.
...
The plots below show 2-metre anomalies for JJA from ECMWF (left), UKMO (middle) and MeteoFrance, all issued by C3S on 1 May.
The next plots show the same as above but for z500.
...