General January Weather

[shovelopikis]

Is indeed a high dewpoint for down here Spwill. Might get a heat shower in the hills behind here later if that sun gets through, a few patches of blue above me at the mo but we'll see.

50/50 blue sky/cloud and some building clouds,was thinking a shower could be on the cards.

Sounds a ripper storm shovelopikis,how much rain did ya get from it.

pah-only 10mm

[Manukau heads obs]

had a report from NW of Taupo about those heavy showers too where their driveway got washed out it was so heavy

[Manukau heads obs]

24 hour temperature here (midnight to midnight) was 22c
whew

[David]

Already 23C with 19C dewpoint at 8.30am. My morning exercise was much sweatier than usual
Overall the humidity hasn't actually been that bad this summer, so can't complain too much!

[NZstorm]

Overall the humidity hasn't actually been that bad this summer, so can't complain too much!

Auckland hasn't had what I call proper humidity for a few years now. Summers of late have been less humid it seems. We don't get the periods of 20C+ dps anymore.

[spwill]

Very true, its been a warm January but not humid by Auckland standards.

The unreliable indicators point to the gate possibly opening to the tropics after about the 10th Feb, rain and humidity coming down.

Greylynn average temp range for Jan has been min 15.5C - max 26C, 10mm rain, sunshine hrs near 300hr ( a guess) an exceptional January.

[David]

Auckland hasn't had what I call proper humidity for a few years now. Summers of late have been less humid it seems. We don't get the periods of 20C+ dps anymore.

Here are the results of some queries from my database. This January has the second highest average dewpoint in the last few years, but that is because of the higher average temperature. The average humidity is more informative in the stats below:

Code: Select all

+-------+------+----------------+-------------+-------------+
| Month | Year | AvgTemperature | AvgDewpoint | AvgHumidity |
+-------+------+----------------+-------------+-------------+
|     1 | 2010 |           19.2 |        14.6 |        76.4 |
|     1 | 2011 |           20.2 |        16.3 |        79.5 |
|     1 | 2012 |           18.3 |        14.9 |        81.3 |
|     1 | 2013 |           19.5 |        14.6 |        74.9 |
|     1 | 2014 |           18.7 |        14.1 |        75.5 |
|     1 | 2015 |           20.6 |        15.7 |        74.7 |
+-------+------+----------------+-------------+-------------+

Code: Select all

+-------+------+----------------+-------------+-------------+
| Month | Year | AvgTemperature | AvgDewpoint | AvgHumidity |
+-------+------+----------------+-------------+-------------+
|     2 | 2010 |           20.8 |        16.5 |        78.3 |
|     2 | 2011 |           20.7 |        17.2 |        81.4 |
|     2 | 2012 |           19.1 |        15.8 |        82.2 |
|     2 | 2013 |           19.5 |        14.5 |        74.7 |
|     2 | 2014 |           20.1 |        15.5 |        76.0 |
+-------+------+----------------+-------------+-------------+

[Manukau heads obs]

humidity is relative though
so you are best to compare dew point only

[jamie]

2011 stands out and 2012 to a lesser degree.

Certainly haven't had those 20+ degree nights end on end in the last few years.

New what about drawing out something along the lines of number of days with min temps higher than 18 or something?

[David]

2011 stands out and 2012 to a lesser degree.

Certainly haven't had those 20+ degree nights end on end in the last few years.

New what about drawing out something along the lines of number of days with min temps higher than 18 or something?

Here are some numbers (I used December-March for each summer period because March can have quite a few warm nights). Only one min above 18 so far this summer (today will be the second)

Code: Select all

+-------+------+--------------+
| Month | Year | MinAtLeast18 |
+-------+------+--------------+
|    12 | 2009 |            1 |
|     1 | 2010 |            4 |
|     2 | 2010 |           10 |
|     3 | 2010 |            0 |     15
+-------+------+--------------+
|    12 | 2010 |            9 |
|     1 | 2011 |            4 |
|     2 | 2011 |            9 |
|     3 | 2011 |            5 |     27
+-------+------+--------------+
|    12 | 2011 |            3 |
|     1 | 2012 |            0 |
|     2 | 2012 |            1 |
|     3 | 2012 |            0 |      4
+-------+------+--------------+
|    12 | 2012 |            7 |
|     1 | 2013 |            4 |
|     2 | 2013 |            2 |
|     3 | 2013 |            3 |     16
+-------+------+--------------+
|    12 | 2013 |            0 |
|     1 | 2014 |            1 |
|     2 | 2014 |            5 |
|     3 | 2014 |            2 |      8
+-------+------+--------------+
|    12 | 2014 |            0 | 
|     1 | 2015 |            1 |      1
+-------+------+--------------+

[David]

The Mangere Auckland station has recorded 298 hours of sunshine ending on the 28th. With a reasonable amount of sun yesterday & today, and likely more tomorrow, I guess we will end up with our sunniest January on record

[RWood]

The Mangere Auckland station has recorded 298 hours of sunshine ending on the 28th. With a reasonable amount of sun yesterday & today, and likely more tomorrow, I guess we will end up with our sunniest January on record

Though perhaps not the Mechanics Bay record of 316 in 1957. N Plymouth is likely to "record" a value comfortably ahead of the NZ record of 335, but I won't buy it!!

[Nev]

The Mangere Auckland station has recorded 298 hours of sunshine ending on the 28th. With a reasonable amount of sun yesterday & today, and likely more tomorrow, I guess we will end up with our sunniest January on record

Think you mean 'ending on the 29th' (yesterday). But yes, only 6.4 hrs needed to match its Jan record, which I think we will we easily get today.

[David]

Think you mean 'ending on the 29th' (yesterday). But yes, only 6.4 hrs needed to match its Jan record, which I think we will we easily get today.

Yes, my mistake! Guess that means the final tally will end up around 310 hours.

[RWood]

Think you mean 'ending on the 29th' (yesterday). But yes, only 6.4 hrs needed to match its Jan record, which I think we will we easily get today.

Yes, my mistake! Guess that means the final tally will end up around 310 hours.

Some totals to 29th: Kelburn 272 Mangere 298 Tekapo 310 Whakatane 314 Nelson 312 Blenheim 296.

[Manukau heads obs]

is that rain west of northland going to make landfall?
certainly clouded up alot out to the west of me now and the DP is now 18

[NZstorm]

Looking like patchy rain tomorrow for Auckland. It won't be a fine day.

[melja]

M/S showing 27mm in Queenstown for the last hour, must be a thunderstorm.

[Manukau heads obs]

sheet kicker as Jim would say, tonight. 21c at pm

[spwill]

Has been some light showers here but I see Greylynn down the road has had 15.4mm last hr

[Manukau heads obs]

surprised to wake up to see 10mm recorded
nice
low cloud on the hills, DP 18.5

edit...wow, looking at rain radar...its a narrow line of rain...which Ricky is catching and which extends down to here...convergence I would say...slow moving too

[Nev]

Yes, weird looking skinny rainband formed and stalled over Akld in the last hour or two…

[NZstorm]

The line had been there in the gfs for the last few days.

[spwill]

The convergence has been in the GFS for atleast a few days.

[Manukau heads obs]

its very much like an easterly surge line