NZ Weather Forum

Nev wrote: ↑Tue 01/08/2023 20:20 July 2023 was another exceptionally warm month overall. It was also much drier than previous months for most parts, except for the east and south of the South Island, which included some flooding in Canterbury. The odd heavy rainfall event also caused more slips in the Coromandel Peninsula and Gisborne/Tairāwhiti.


Jul 2023 Climate Anomaly Maps ℅ NIWA.png


Preliminary stats for the main centres:

Code: Select all

July 2023 Average Temps, Rainfall, Sunshine and departures from 1991-2020 normals ℅ NIWA

Site                     T-max °C      T-min °C      T-mean °C     Rain mm      Sun hrs

Auckland, Mangere       15.5  +0.8     9.2  +1.7    12.4  +1.3    104   75%    137  102%
Tauranga Aero *         15.7  +1.1     8.1  +1.8    11.9  +1.4     79   59%
Hamilton Aero *         14.6  +0.8     5.5  +1.5    10.1  +1.2     47   34%    129  101%
Wellington, Kelburn     12.6  +0.9     6.5  -0.2     9.6  +0.4    114   36%    126  104%
Christchurch Aero       12.3  +1.1     0.8  +0.1     6.6  +0.6    155  241%    150  117%
Dunedin, Musselburgh    11.6  +1.2     5.4  +2.4     8.5  +1.8     79  153%     93   80%
Greymouth Aero          13.4  +1.1     5.3  +1.0     9.4  +1.1     97   49%    117  103%

* Tauranga missing 4 days of rainfall data. * Hamilton sunshine from Ruakura. 

Dunedin recorded its warmest July average T-min and T-mean from records since 1947.

BeaconHill wrote: ↑Wed 02/08/2023 08:35 I think the Wellington rainfall figure of 114 being 36% of average is a typo?
MetService site says July average for Kelburn is 132.7, vs them also reporting 114 for July.
So percentage figure should be 86%.

Wellington_July_Rain.png