by P. Homewood, August 1, 2018 in NotaLotofPeopleKnowThat
There have been just seven summers over 20c since 1910:
1911
1933
1947
1976
1995
2003
2006
While we don’t know how this summer will work out (and neither does Bob Ward), since 2006 we have had eleven distinctly average summers.
The hot summers above are still rare events, and are all essentially weather events. There is no evidence that these extreme weather events are becoming more frequent.