May 2021 – Globally 12th warmest on record

May 2021 in my DIY Global Temperature series was the twelfth warmest in the record that started in 1948. There are signs that the sharp fall in 12 month global average temperatures that started in March 2020 has now started to flatten out a little, more than likely because the SST in the central Pacific are now returning closer to average after the end of the latest La Niña event. Global 12 month average temperatures remain as low as they were back in early 2015.

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