A total of 22,825 MT of product was sold to 169 successful bidders.
Fonterra started the 2021/22 season with a rise in the forecast farmgate milk price range from $7.30-$7.90 per kg to $7.25-$8.75.
The midpoint of the range, off which farmers are paid, also rose from $7.60 per kg to $8 per kg.
Fonterra chief financial officer Marc Rivers was pleased with the result.
"Steady as she goes is the way I'd describe it," he told The Country's Jamie Mackay.
Whole milk prices were still "hanging in there" which showed demand remained strong, Rivers said.
Volumes offered at the auction were relatively low, but that reflected the end of the season.
"We're starting to sell into the new season now but they're still a bit lower than they were before."
However, 21,000 MT still generated NZ$126 million for New Zealand's economy.
Also in today's interview: Rivers talked about how the co-op was supporting its farmers facing the floods in Canterbury and explained the reasons behind the co-op's current low share prices.
Listen to the full interview below: