The Consumer Prices Index, which is used by the government to measure the annual inflation rate, rose to 3.4% last month (March). It was 3% in February. The increased price of petrol and diesel, and the knock-on effects of this on other sectors, is blamed for the increase. Also, the bad weather in January forced the price of certain produce up, as some vegetables became more scarce as a result.
Source: Office for National Statistics 20/4/10