April 2021 – Sixth most anticyclonic since 1871

April 2021 may well have become the sixth most anticyclonic (60%) since 1871 using the Objective Lamb Weather Type series from the CRU, but it still fell well short of the most anticyclonic April of them all – 1938 (92%). This April was well and truly a blocked month with a notable incursion of Arctic air from the 4th to the 12th, and again from the 27th to the end of the month.

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