new zealand average rainfall in cm
Approximately 48 inches of rain per year. Answer Average annual rainfall for New Zealand = 185 centimetres (source: Gale county and world rankings reporter 1996 p.282) or around 72.047 inches.It varies across the country. Some areas get ~600mm and some in excess of 1600mm (23-63).nswer Average annual rainfall for New Zealand = 185 centimetres (source: Gale county and world rankings reporter 1996 p.282) or around 72.047 inches. It varies across the country.