Temperatures throughout most of New Zealand were well below average in August, reflecting the storm that brought widespread snow.
The National Institute of Water and Atmospheric Research says numerous low-temperature records for August were broken around the middle of the month.
The average of 8.2 degrees was 0.5 degrees below the average August temperature from 1971 to 2000.
The lowest temperature record was minus-10 at Lake Rotoiti in the Nelson Lakes, while the highest was 22.1 at Whangarei and Cheviot on 30 August.
NIWA says Auckland was the warmest main centre, Christchurch the coldest, Tauranga the sunniest and Wellington the wettest.