The rolling 12-month average maxima anomaly in Wanstead on June 10th is sitting at 1.6C.

Considering local statistics back to 1959 the figure reached an all-time high of 2.1C last November, a level it stayed until December 11th, when a very remarkable week of snow and frost arrived.

With unremarkable maxima for most of this year the figure has been falling. But with a building El Nino it remains to be seen if the highest anomaly ever of 2.1C will be breached.

Date	12-month rolling anomaly
10/6/2023	1.6
10/6/2022	1.1
10/6/2021	0.4
10/6/2020	1.3
10/6/2019	1.7
10/6/2018	0.5
10/6/2017	1.2
10/6/2016	0.9
10/6/2015	1.0
10/6/2014	1.4
10/6/2013	-1.3