I looked at the list of maxima and assumed the Trawscoed figure was an obvious error. Nowhere else in the UK exceeded 19C today. Colour me very sceptical.
As far as I can see the next warmest was 18.9C at Capel Curig and Bala. Across the Irish Sea Valentia hit 19.5C.
Was Trawscoed really 3.5C warmer than anywhere else in the country? It seems to be being reported as genuine but it's the kind of reading that would raise major red flags if you were looking back at old records.
Originally Posted by: Rob K