March 2021 – Northern hemisphere temperature anomalies

I have been producing and publishing these charts of monthly temperature anomalies for most of the northern hemisphere for some years now, and I think this is the first time at a glance colder anomalies seem to outweigh the warmer anomalies. Across IONA the gradient cold to mild ran south north for a change. It seems to me that in March the various cold and warm pools seem to be aligned along a curve or am I just imagining it? I will admit that I seem to have left out all of the Arctic above 76° north, but what the hell, If you have any objections you are free do download the gridded reanalysis data and have a go yourself.

What do you think?

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