Rules of the Game
Suffocating heat in the Southeastern US, floods in the midwest, calamitous fires in Europe and the drought stricken Western US, records broken every day in the disappearance of Arctic sea ice. Evidence of global warming? Except possibly for the sea ice, scientific caution suggests that it's too early to tell.
Denialist nuts find proof for their doubt in one cool summer day in one city, but science can't afford to work that way.
Cherry picking the evidence is a standard tactic of the dishonest in every endeavor, so the climate doubters are hardly an exception here.
Extreme local weather events, taken in isolation, can't be evidence of global change, but they do serve a useful purpose in reminding us that reality can be ignored only at our peril. Some, of course, are notably slow learners.