International milk prices edged higher and volumes jumped more than 6% at Fonterra global dairy auction.
The Global Dairy Trade index rose 0.1% overnight on Tuesday with an average selling price of $US4,805 per tonne.
A total of 52,297 tonnes was sold, up 6.1% from the last auction.
Producers' prices affected
Separately, higher dairy prices are continuing to push up producers' prices.
Statistics New Zealand says producers' output prices, or what they received for their goods and services, jumped 2.4% in the three months to September compared with the previous quarter, its biggest quarterly rise in five years.
Producers' input costs increased 2.2%, also due to higher dairy costs, as well as higher prices for lamb and beef.
On an annual basis, costs rose 3.3%, while prices rose 4.1% percent.