The New Zealand dollar was heading for a 12 per cent annual decline after weathering weaker dairy prices and concerns about slowing Chinese economic growth, and may extend its slide in early 2016 as US growth comes into view.
The kiwi fell to US68.41c as at 3pm from US68.56c late on Wednesday. The trade-weighted index slipped to 74.27 from 74.40 on Wednesday and is heading for an annual decline of about 6 per cent.
The year's selloff in the kiwi came as prices of dairy products fell to their lowest levels in six years in August, on the GlobalDairyTrade platform and on concern demand from China was waning in the face on increased supply, especially from Europe.
Prices revived somewhat in the second half of the year. The kiwi has also strengthened somewhat heading into the end of the year, even though the Reserve Bank cut its benchmark interest rate to 2.5 per cent, while the Federal Reserve raised rates for the first time in almost a decade.
"The kiwi has been driven down [in 2015] by weakness in China, the big drop in dairy prices," said Angus Nicholson, market analyst at IG Markets in Melbourne.