New Zealand Climate
The first half of January was cool, but warm summer conditions dominated the last 10 days of the month. The mean temperature for January was about 3.5 °C higher than for December.
Rainfall was below average in many areas, especially eastern Bay of Plenty. The southern Wairarapa, Kapiti, and Upper Hutt districts experienced heavy rainfall on 5 January, with local flooding, road closures, and other damage.
For more information on the climate in January, visit the climate summaries page at www.niwa.co.nz/ncc/cs/mclimsum_05_01