In blossom in winter

Spotted this morning: a cherry tree in blossom the Sunday before Shrove Tuesday. There'll be many more and they'll have flowered sooner on the coast; this tree is in the fresher, mountainous interior of Alicante province at an altitude of 800 metres, latitude approx 39ºN and definitely bracingly chilly this morning. Will these trees bear much fruit this year?

A reflection: in the 1980s in North Lincolnshire, between Market Rasen and Cleethorpes (latitude around 53ºN), one of my favourite sights in *May* (!) was an avenue of cherry trees in blossom like this. Two and a half months later! The distance south doesn't account for all of that difference; I'm convinced it's attributable to climate change.