Shifts in daytime (maximum) temperature from one day to the next of more than 10C are rare. There are just 52 occasions on record at Woburn #Beds between 1929 and 2019 (on average just once every 3 years). There have been only 5 occurrences of a change of more than 12C.

(records provided by Rothamsted Research). The greatest shift was 13.9C (from 13.6C to -0.3C on 17/03/2018).

Yesterday (12/04) reached 23.7C at http://cliftonweather.co.uk , today's high (so far) is just 9.7C (a difference of 14C). If this holds this will beat their station record (currently 13.2C - 37.8C down to 24.6C on 26/06/2019).

@wanstead_meteo know any greater shifts than 14C in max temp from one day to the next in your area?