Islam noted, however, after some car shipments were blocked in February, car imports bounced back in the following months.
Aircraft and parts posted the next largest decline, down 48 per cent from the same month last year at $153 million. Aircraft imports are irregular and can cause large rises or falls in monthly figures.
The fall in imports was offset by rises across a range of other commodities, including fertilisers, soya bean oil cake, and palm oil cake, Stats NZ said.
Monthly goods exports were up 71 per cent at $4.9 billion.
Exports of aluminium and beef were the leading contributors to the rise in exports, with aluminium up $59 million, or 142 per cent, from November 2017 when values and quantities had been unusually low.
Meat and edible offal rose $56 million, or 11 per cent, to $553 million. Beef rose $51 million, or 28 per cent, in value and 30 per cent in quantity.
The largest rise in beef exports was to China, up $32 million.
Milk powder, butter, and cheese exports rose $30 million, or 2.1 per cent, to $1.5 billion.
Fruit exports climbed $32 million, or 60 per cent, to $86 million.
That was led by green kiwifruit, up $34 million, or 167 per cent in value and 162 per cent in quantity.