In anticipation of the next SIE update I'm going to look back at what air and sea surface temperatures did in the past month, and compare that to what happened in previous years. This month of June saw the AO Index go negative, which means that large parts of the Arctic have been relatively clear. In the month of the Summer solstice this is bound to influence temperatures.
As in the previous blog post on temps in April I have made use of the Daily Mean Composite page, compiled by the Physical Science Division of NOAA's Earth System Research Laboratory. Thanks to comments in that previous blog post I have managed to improve the images.
This is the mean composite image of temperature anomalies for June this year, that's to say, until June 26th, as it takes a few days for the NOAA/ESRL/PSD to process the data. I don't expect these last 4 days to make much of a difference:
As we can see temperatures over Siberia were relatively high, on the other side not much higher than the long-term average. Here's what June looks like in previous years (click for a larger version):