25 March – A large National Front rally is held in London, in protest against European integration.[12]
26 March – British Leyland releases their new family saloon, the Morris 18-22wedge styled by Harris Mann to replace the ageing Austin 1800Landcrab range. There are Austin, Morris and the luxury Wolseley versions at launch. However, in less than six months, the entire range is rebranded as the Princess and the marque "Wolseley" is abandoned.
13 April – A 22-year-old woman is raped at her bedsit in Cambridge. Cambridgeshire Police believe that she was the sixth victim of a rapist who had been operating across the city since October last year. In June, the police arrest 47-year-old Peter Cook for the rapes; he is sentenced to life imprisonment in October.[15]
24 April – Unemployment exceeds the 1,000,000 mark for March 1975.[5]
26 April
A conference of Labour Party members vote against continued membership of the EEC.[16]
27 May – Dibbles Bridge coach crash: a tour coach runs away following brake failure and falls off a bridge near Hebden, North Yorkshire, en route to Grassington, killing the driver and 31 female pensioners on board, the highest ever toll in a UK road accident.[20]
2 June – Snow showers occur across as the country even as far south as London which last happened in 1761.
5 June – 67% of voters support continuing membership of the EEC in a referendum.[24]
9 June – Proceedings in Parliament are broadcast on radio for the first time.[25]
11 June – In Uganda, British author and adventurer Denis Hills is sentenced to death by firing squad for referring to Idi Amin as a 'village tyrant'.
13 June – UEFA places a three-year ban on Leeds United from European competitions due to the behaviour of their fans at last month's European Cup final.
14 June – Ambulance crews in the West Midlands stage a ban on non-emergency calls in a dispute over pay and hours.[5]
17 June – Leeds United lodge an appeal against their ban from European competitions.[26]
19 June – A coroner's court jury returns a verdict of wilful murder, naming Lord Lucan as the murderer, in the inquest on Sandra Rivett, the nanny who was found dead at his wife's London home seven months previously.[27]
30 June – UEFA reduces Leeds United's ban from European competitions to one season on appeal.[28]
July
July – The Government and Trades Union Congress agree to a one-year cash limit on pay rises.
1 August – The Government's anti-inflation policy comes into full effect. During the year, inflation reaches 24.2% - the second-highest recorded level since records began in 1750, and the highest since 1800.[31] A summary of the White Paper Attack on Inflation is delivered to all households.
11 August – British Leyland Motor Corporation comes under British government control.
19 August – Headingley cricket ground is vandalised by people campaigning for release from prison of the armed robber George Davis. A scheduled test match between England and Australia which was meant to take place there has to be abandoned. This is the climax to a campaign in which the slogan George Davis is Innocent was widely sprayed throughout London.[34]
21 August – The unemployment rate reaches the 1,250,000 mark.
27 August – A 14-year-old, Tracy Browne, is badly injured in a hammer attack in a country lane at Silsden, near Keighley.[35]
27 September – The National Railway Museum is opened in York, becoming the first national museum outside London.
28 September–3 October – The Spaghetti House siege, in which nine people are taken as hostages, takes place in London.[40]
October
October
Vauxhall announces its second new model launch of the year - the Cavalier, which replaces the Victor, is based on the German Opel Ascona, and is a direct competitor for the big-selling Ford Cortina.
Statistics show that Britain is in a double-dip recession, as the economy contracted for the second and third quarters of the year.[41]
December – Donald Neilson, 39, is arrested in Mansfield, Nottinghamshire, on suspicion of being the "Black Panther" murderer who was believed to have carried out five murders in the last two years.[2]
6–12 December – Balcombe Street Siege: IRA members on the run from police break into a London flat, taking the residents hostage. The siege ends after six days with the gunmen giving themselves up to the police.[47][48]
^Warner, David (2011). The Yorkshire County Cricket Club: 2011 Yearbook (113th ed.). Ilkley, Yorkshire: Great Northern Books. p. 381. ISBN978-1-905080-85-4.