General September Weather

[tgsnoopy]

Shame missed all the thunder/lightning the other day. Really typical, we usually get events like that when I'm away.

Thanks for taking one for the team

[NZ Thunderstorm Soc]

Some nice Cu forms to the NW this afternoon around the Mt. Peel to the 4 Peaks areas.
Sadly, not delivering 'fruit'

[Nev]

A fairly mild September overall, although much of the Sth Island started cooler, but ended much warmer. Well above normal rainfall around the central Nth Island and Nth Canterbury/Marlborough, with some places receiving more than double their normal rainfall. Interesting to note Mahia Peninsular's 180mm, compared to just 26mm and 22mm further down at Napier and Hastings respectively.

Sep 2017 Climate Anomaly Maps ℅ NIWA.gif

Some very preliminary September 2017 figures for the main centres:

Code: Select all

Sep 2017 Average Temps, Rainfall, Sunshine and departures from 1981-2010 normals ℅ NIWA

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

Auckland, Mangere       17.2  +0.9    10.7  +1.1    13.9  +0.9     97   95%    157  104%
Auckland Aero           16.9  +0.5    10.8  +1.1    13.8  +0.8     98  108%
Tauranga Aero           16.8  +0.2     9.1  +0.8    12.9  +0.5    185  218%    172   99%
Hamilton Aero           16.5  +0.2     7.7  +1.5    12.1  +0.8    195  193%
Hamilton, Ruakura       16.9  +0.6     7.1  +0.4    12.0  +0.5    169  183%    152  104%
Wellington, Kelburn     13.8  +0.1     8.8  +0.9    11.3  +0.5     79   80%    138   84%
Christchurch Aero       15.3  +0.5     5.7  +1.8    10.5  +1.1     67  163%    121   71%
Dunedin, Musselburgh    13.8  +0.6     7.1  +1.2    10.5  +1.0     66  136%    140  104%
Greymouth Aero          14.1   0.0     7.1  +0.5    10.6  +0.3    236  113%    147  111%

[Nev]

Here's NIWA's preliminary, 'September 2017 National Climate Summary'.

A wet month for many and warm on the eastern coasts


The national average temp of 11.2C was 0.7C above normal.

The month's highest temp of 26.6C was shared by Riccarton, Christchurch on the 15th and 25th and Hastings also on the 25th (the latter being a Sep site record). The lowest temp of -6.4C was recorded at Mt Cook Aero on the 4th.

[NZ Thunderstorm Soc]

The month's highest temp of 26.6C was shared by Riccarton, Christchurch on the 15th and 25th

I thought it would be, so as far as I'm, concerned, I will give the maximum to Hastings on the 25th.