Yesterdays Lows/Highs in the USA:

[deneb78]

Originally Posted by B1987

London's overnight low was higher than anything on that map apart from Tampa, Orlando and Miami. The high was the same as Amarillo's.

London recorded a low in the 60s in January? That must surely be a record.

[Zone13]

Here are comparisons between Port Isabel, Texas and Miami, Florida, Texas gets a bad name because of the record lows, but normally it is comparable(though quite cooler) to South FLorida.(First thumbnail is Port Isabel second is Miami)

[B1987]

Originally Posted by deneb78

London recorded a low in the 60s in January? That must surely be a record.

No, the low was 54F, so no record.