Chicken pieces became more expensive but lamb prices plummeted 14 per cent, the lowest since February 2009.
Fruit and vegetables rose 0.7 per cent, with apples, potatoes and kiwifruit all seeing double-digit price seasonal lifts.
Tomato and broccoli-lovers will have been happy though, as prices for both fell by about 30 per cent last month and are 75 per cent lower than their off-season peak in August 2012.
On an annual basis, grocery food was down 3.6 per cent compared to a year ago.
Dairy prices are also significantly lower, with fresh milk down 9.4 per cent and cheese down 8.2 per cent.
Statistics NZ visits shops across New Zealand to collect prices for the FPI and check package sizes.