January 2023 rainfall

It was a month of contrasts for the weather in Taranaki in January with a couple of weeks of cool, wet and windy conditions followed by dry and warmer weather and ending with huge downpours across the region.

Rainfall was on average 193.5% of the long-term average, ranging from 89% at Kotare at O’Sullivans to 547% at Whanganui at Mataimona Trig. Rainfall was highest in the south-west ring plain area, and in the south and eastern parts of the hill country. Kaupokonui at Glenn Rd has already received 15% of a typical year’s rainfall.

Mean river flows for January were generally above typical averages at around 179.9% while mean river non-mountain water temperatures were 18ºC, an average of -0.5ºC cooler than long-term values. The average air temperature (excluding Te Maunga sites) was 18.4ºC, which is 0.3ºC warmer than usual.

January 2023 hydrology report [PDF, 1.7 MB]

January 2023 rainfall maps

What you should know:

  1. The site maps show data from a selection of the sites we monitor, but not all of them.

  2. The distribution maps are based on mathematical modelling and may not accurately represent actual rainfall in some unmonitored areas.

Click on each map for larger version.

MONITORED SITES

RAINFALL DISTRIBUTION