graph for Blitz July 31, 2015 1187 × 732 London’s worst-ever lightning tragedy This graph shows how much colder the weather was at the time of the Blitz compared with the period September 2014 – May 2015 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Share on LinkedIn (Opens in new window) LinkedIn Print (Opens in new window) Print Like Loading...