Strong sales of party food and clothes ahead of the Diamond Jubilee celebrations helped beleaguered retailers keep their heads above water in June.
Online sales rose 12% - faster than a year ago - as people stuck indoors did their shopping online.
More top news
Temperatures will remain close to freezing.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.
Prime Minister Theresa May said in October the Government will shift towards an organ donation system in England which presumes consent.