On 24 May, 09:28, Ian Currie-Weather eye
wrote:
The maximum temperature on Sunday 23rd May was 28.0C and with a
minimum of just 4.9C the range of temperature in the Chipstead Valley,
Surrey,was 23.1C.

Noticed an even larger diurnal range on the 23rd at Santon Downham in
Suffolk. Max 28.4C with a min of 4.6C and diurnal range of 23.8C.
A rather more modest range of 16.5C here in Raunds, Northants.
Max 26.7C, Min 10.2C. No sandy soil or frost hollow here ;(

Ian,

Raunds, East Northants. 63m amsl. NGRSP9972.