Since I wrote the original blog on London droughts in July 2018 there have been five more meteorological droughts.
The latest, as I write this on August 7th 2022, now sits 12th in longest droughts in this area.
The rolling 12-month rainfall total has now reduced to 457mm; the lowest since 2017, and low given that the annual Jan-Dec rainfall average here is 602mm. At this point last year the rolling 12-month total was 818mm!
Looking further back, at a monthly rainfall series that goes back to 1797, the opening seven months of this 2022 are the 6th driest.
Whatever way you look at it this area is desperate for rain.