General October Weather

[David]

Trend - last 4 months have been below average rainfall, mean daily temp continues above average.

That's interesting, my station recorded 0.4C cooler than it's historical average (2010-2018)

[Cyclone Tracy]

Trend - last 4 months have been below average rainfall, mean daily temp continues above average.

That's interesting, my station recorded 0.4C cooler than it's historical average (2010-2018)

There might be a couple factors involved this year, including our own little microclimates

1.You have had much higher rainfall.
2. Not sure how close to the water you are, I'm only 200 metres from the water and the sea surface temperatures were significantly higher in the first half of the year with that marine heat. This assisted milder overnight lows for the first 7 months for my station.

[David]

There might be a couple factors involved this year, including our own little microclimates

1.You have had much higher rainfall.
2. Not sure how close to the water you are, I'm only 200 metres from the water and the sea surface temperatures were significantly higher in the first half of the year with that marine heat. This assisted milder overnight lows for the first 7 months for my station.

That proximity to water probably makes a difference for overnight lows especially. I'm 2km from the nearest coastline.

[Nev]

October 2018 was a variable, but generally mild month becoming unsettled towards the end…

Oct 2018 Climate Anomaly Maps ℅ NIWA.gif

Some very preliminary Oct 2018 figures for the main centres:

Code: Select all

Oct 2018 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       18.5  +0.9    10.2  -0.9    14.4   0.0     74   81%    205  116%
Auckland Aero           18.2  +0.5    10.4  -0.8    14.3  -0.2     77   82%
Tauranga Aero           19.3  +1.2     9.4  -0.8    14.3  +0.2     79   88%    n/a   n/a
Hamilton Aero           18.7  +0.7     6.6  -1.5    12.7  -0.4     78   79%
Hamilton, Ruakura       19.7  +1.7     6.6  -1.8    13.2   0.0     53   59%    205  117%
Wellington, Kelburn     15.5  +0.6     9.7  +0.7    12.6  +0.6    114   97%    193  100%
Christchurch Aero       16.8  -0.1     5.5  -0.5    11.2  -0.3     78  160%    209  102%
Dunedin, Musselburgh    15.4  +0.7     7.6  +0.5    11.5  +0.6     55   90%    181  108%
Greymouth Aero          14.5  -0.6     8.3  +0.3    11.4  -0.2     96   43%    165  105%

[NZ Thunderstorm Soc]

94.7mm for the month here, much more than the RPA site at Levels by 40.9mm.
Shows you it can be wetter here.
5 frosts for the month.