Extreme heat Eastern SI 21 December 2015

trickytiger · Unread post by **trickytiger** » Mon 21/12/2015 13:25

sitting on 34.9 in Rangitata, I see Timaru has almost made it to it's December record too

dogmelon · Unread post by **dogmelon** » Mon 21/12/2015 13:46

Look at how the NWer has failed to penetrate through to ground level in Blenheim. They're still 25 odd.

RWood · Unread post by **RWood** » Mon 21/12/2015 13:48

Blenheim still only 26C with easterly breeze. If the NW arrives too late Met's forecast will be well off the mark.

shovelopikis · Unread post by **shovelopikis** » Mon 21/12/2015 13:54

29.4c in the western bays, our temps always have a big variation against a taupo forecast, but we are at a higher altitude and very sheltered from anything other than a north west-north east flow.

Growler · Unread post by **Growler** » Mon 21/12/2015 13:57

Just peaked at 38° flat in Rolleston.

melja · Unread post by **melja** » Mon 21/12/2015 14:02

Just hit the expected high of 34C at chch airport.

Razor · Unread post by **Razor** » Mon 21/12/2015 14:16

Yes in Rolleston... 38 degrees a bit hot to be walking around a factory!

TonyT · Unread post by **TonyT** » Mon 21/12/2015 14:43

Unless its an ice cream factory.

Razor · Unread post by **Razor** » Mon 21/12/2015 14:43

Spies tell me Rangiora just topped 40?

RWood · Unread post by **RWood** » Mon 21/12/2015 14:48

Razor wrote:Spies tell me Rangiora just topped 40?

And the moon is made of green cheese?

Growler · Unread post by **Growler** » Mon 21/12/2015 14:59

Rolly 39.6 at 14:27, dropping now.

dogmelon · Unread post by **dogmelon** » Mon 21/12/2015 15:00

Razor wrote:Spies tell me Rangiora just topped 40?

Thats known as the "Sun Temp", where you put your thermometer in the sun for best accuracy. Har har.

Orion · Unread post by **Orion** » Mon 21/12/2015 15:02

One of those days when the air feels warm as it goes into the lungs

Business is brisk at the bird-baths.

RichyDunedin · Unread post by **RichyDunedin** » Mon 21/12/2015 15:04

Dunedin City was at 34.6C half an hour ago, previous December record was 32.2C

Razor · Unread post by **Razor** » Mon 21/12/2015 15:26

Christchurch Aero currently 35.8. The "official" site. (edited to 3:20pm). Offically the December record I understand?

Razor · Unread post by **Razor** » Mon 21/12/2015 15:28

Separate topic status today I reckon, for future searches etc

moylanr · Unread post by **moylanr** » Mon 21/12/2015 15:34

Christchurch Botanic Gardens tipped 32C just before 2pm. Dropped to 30C then back up to 30.6C ~4:30pm.

Updated:

melja · Unread post by **melja** » Mon 21/12/2015 16:05

Well both my station and a very good one down the road and my car that's been under trees all day all said 40C at on point here in Rangiora but hey what would we know, people outside the area always know best aye.

Razor · Unread post by **Razor** » Mon 21/12/2015 16:10

melja wrote:Well both my station and a very good one down the road and my car that's been under trees all day all said 40C at on point here in Rangiora but hey what would we know, people outside the area always know best aye.

Yes it will be interesting to see the final official washup on today. Given ChCh Aero has touched on 36, 4 degrees more than Botanic Gardens, it is not unreasonable to believe that 40 could have been nudged somewhere.

I certainly noticed a substantial difference between leaving Rolleston at the unofficial 38 to arriving back in town, NW breeze very prominent in Rolly, but NE still puffing through town.

TonyT · Unread post by **TonyT** » Mon 21/12/2015 16:12

Here is a list of the December maximums over 32deg at the Botanic Gardens since the record starts in 1863:

Dec-1975 35
Dec-94 33.8
Dec-1872 33.5
Dec-35 33.3
Dec-1915 33.1
Dec-1916 33.1
Dec-37 32.8
Dec-2010 32.8
Dec-55 32.7
Dec-97 32.7
Dec-23 32.6
Dec-62 32.6
Dec-1907 32.2
Dec-1912 32.2
Dec-30 32.2
Dec-88 32

Richard · Unread post by **Richard** » Mon 21/12/2015 16:13

Topped out at 32deg here,we were at Ashworth Beach till 2.00pm where it felt warmer than here, so would say 35-36deg at least down there.

Razor · Unread post by **Razor** » Mon 21/12/2015 16:14

Metservice has confirmed 36.1 maximum for ChCh Aero as new record

TonyT · Unread post by **TonyT** » Mon 21/12/2015 16:25

Here is the list for Chch Airport, record started in 1953

Dec-75 35.4
Dec-94 33.5
Dec-10 32.8
Dec-07 32.8
Dec-62 32.6

So 1975 was the previous hottest day at the airport, and looks like (based on the graph above) remains the record for the Gardens. Interesting that back then both Gardens and Airport recorded almost identical temperatures, yet this time around the Airport is markedly warmer then the Gardens. Over the the last 40 years there has been a lot more development at the Airport which would tend to raise temperatures there, while the Gardens site has become more closed in with tree growth (tending to make it cooler).

36.1 would also be the third warmest day (in any month) recorded at the Airport. Only February 1973 (the infamous 40+ day) and February 1982 were warmer.

Captain Salty · Unread post by **Captain Salty** » Mon 21/12/2015 16:37

And yet it's only 19 at the beach with a south-easterly

I was working by the airport today and was nice to have a hot day without the gusty stuff and clear skies

Razor · Unread post by **Razor** » Mon 21/12/2015 16:38

See my note above re the easterly today, it was noticeably cooler in town compared to Rolleston, which like the airport has been far enough inland to avoid the sea breeze today. A notably hot NW breeze out there. The NW has not made to the CBD town today, must have been right on the boundary. I note its struggled to reach even 20 at New Brighton today. Quite a remarkable differential

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Extreme heat Eastern SI 21 December 2015

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