According to the climate records of New Zealand , the country had over 160 mm of rainfall each month in 2016 .
The Meteorological Service of New Zealand Limited ( MetService ) , established as a State-Owned Enterprise in 1992 , issues weather forecasts and official weather warnings. Rainfall is generally plentiful in New Zealand , with most cities receiving between 620 mm ( as in Christchurch ) and 1317 mm ( Whangarei ) of precipitation annually .
Climate of New Zealand