Beef prices, which hit record levels last year on strong US demand following a drought, slid 10 per cent over the month but remained 28 per cent higher than the year earlier.
Skim milk powder dropped 9 per cent, aluminium decreased 7 per cent, cheese slipped 5 per cent, and wool declined 4 per cent, while sheepmeat and pelt prices weakened 3 per cent.
Butter outperformed other dairy products, rising 8 per cent in the month although it remained 25 per cent below year earlier levels. Kiwifruit lifted 1 per cent as the Northern Hemisphere export season tailed off.
Meantime, prices were unchanged for seafood, apples, casein, venison, wood pulp and sawn timber.
The NZD ANZ Commodity Price Index, which shows the price movements in New Zealand dollars eased 3.8 per cent in December, to be 16 per cent below the March 2011 peak.
See the latest commodity price index here: