Warning
This information was published in 1966 in An Encyclopaedia of New Zealand, edited by A. H. McLintock. It has not been corrected and will not be updated.
Up-to-date information can be found elsewhere in Te Ara.
Thunderstorms are not numerous. Their frequency is greatest in the north and west where thunder is heard on 15–20 days a year; east of the ranges the figure is five or less.