The figures put little pressure on the Bank of England to raise interest rates imminently.
Deloitte chief economist Ian Stewart said: “Falling prices of essentials, including food and energy, are delivering a windfall bonus to UK consumers, bolstering spending power and enabling consumers to spend more on cars and big ticket items.
“This reduction in prices, combined with rising real incomes and ultra-low interest rates, should help the UK recovery plough on despite the headwinds from emerging markets.”