10 February – Major cuts in power supply due to shortages of fuel under severe winter conditions are imposed in England and Wales.[4] The BBC Television Service is temporarily suspended until 11 March.
February – The coldest February in the CET series with an average of −1.9 °C (28.6 °F)[6] features the coldest Central England maximum temperature for any month since records began in 1878 at 0.1 °C (32.2 °F).[7]
4 March – Treaty of Dunkirk (coming into effect 8 September) signed with France providing for mutual assistance in the event of attack.
3 April – The private healthcare firm BUPA is founded.[1]
9 April – How Does Your Garden Grow? first broadcast on BBC Radio. As Gardeners' Question Time, it will still be running more than sixty-five years later.[12]
15 April – A large bomb planted by members of Israeli militant group Lehi at the Colonial Office building in Whitehall (London) fails to explode.[13]
12 November – Chancellor of the ExchequerHugh Dalton inadvertently reveals some of the contents of his Budget while on his way to the House of Commons to deliver his speech, effectively finishing his political career.[26]
^Smallman-Raynor, M. R.; Cliff, A. D. (2006). Poliomyelitis : a world geography: emergence to eradication. Oxford University Press. pp. 317–18. ISBN019924474X.