If you look at 1976 and 2018 on the basis of the Summer Index formula that Kevin B uses
10*(Mean Max JJA + Sun Hours JJA/67 - Rain Days JJA/8)
Then 1976 beats 2018 by a country mile
The Met Office Regional Data for Summer 2018 is now out and when using this to compare the two dates then 1976 comes out on top in every region


Originally Posted by: lanky