Frosts 2019

[Simon Culling]

Thanks Richard. I lived in Milton Keynes in the south Midlands of the UK for about 25 years and there were approx. 10 nights in that time with a minimum below -10°C. They were not common occurrences.

With regard to measuring stations not being in the right place, that is a problem everywhere I suppose. Here in the UK, the Met Office moved a full reporting station from Redhill Aerodrome (on the South Downs, just to the south of London) because the low minimums were 'not representative' of the local climate!!!

[Chris W]

As Bradley mentioned there would remote areas in NZ where there are no recording stations that must see some brutal temps, the valleys of the Molesworth cattle station would be one.

Beautiful through there. Lake Tennyson would be interesting too!

[RWood]

There are certainly stations in the current or former network that have recorded some very low temperatures:
Ranfurly (original site holds NZ low record), Ophir (held record until the Ranfurly one was discovered), Moa Creek, (former) Molesworth, Manorburn Dam, Tara Hills, Garston … In the North Island, there was a very cold site (T-minwise) in Minginui Forest.

[NZ Thunderstorm Soc]

Grass was white from frost this morning but nothing much else as high cloud from the west moved across.
Down to zero.

[RWood]

Richard, what is the lowest temperature you have recorded in the Amuri Basin - and does anyone know the lowest recorded at the various sites in Hanmer Springs?

7/6/2012 we had a -13 frost after a 30cm snowfall the day before, a car gauge picked up a pocket of cold air near frog rock of -15deg.
As Bradley mentioned there would remote areas in NZ where there are no recording stations that must see some brutal temps, the valleys of the Molesworth cattle station would be one.

Looks as if the lowest Tmin for Hanmer Forest is still -13.2C (originally read as 8.2F) in July 1934 (records 1906-1995 and 1996+).

[Bradley]

Richard, what is the lowest temperature you have recorded in the Amuri Basin - and does anyone know the lowest recorded at the various sites in Hanmer Springs?

7/6/2012 we had a -13 frost after a 30cm snowfall the day before, a car gauge picked up a pocket of cold air near frog rock of -15deg.
As Bradley mentioned there would remote areas in NZ where there are no recording stations that must see some brutal temps, the valleys of the Molesworth cattle station would be one.

Yes I often wonder if there was a NZ version of "Peters Sink" in Utah which would trap cold air in a natural sinkhole up in the alps in Canterbury or even Otago. The temperature can sometimes be as much as 39C warmer in the warmer air above the valley in Peters Sink, it also rarely goes 4 consecutive days without freezing, even in summer...

[NZ Thunderstorm Soc]

A bit of a frost this morning, down to minus 0.8C.

[NZ Thunderstorm Soc]

Frosty overnight and early this morning, but going off quite early as cloud rolled in from the south.
Down to minus 2.4C.

[cbm]

-1.3 here. Didn't get as cold as Ham airport. Didn't drop below 0 untill 6am.

Sent from my SM-N950F using Tapatalk

[David]

Down to 1.7C here. Coldest of the winter so far. Tiny bit of ice around.

[Richard]

Lowest it got to here was - 3.9deg

[NZ Thunderstorm Soc]

Minus 3C here with traces of frost late morning.

[Richard]

Did dip as low as - 1.3 at 1.00am, by 6.00am it had climbed up to 10 deg

[Orion]

Was +0.1° around 8am, lawn white in parts.

[Richard]

a light one this morning with a temp of +0.3

[NZ Thunderstorm Soc]

Minus 1.1 this morning.

[Richard]

Minus 1.1 this morning.

Sent from my local library ?

[Richard]

Lowest temp overnight was at 2.00am when it was at -1.8, by 5.00am the NW wind arrived and pushed the temperature to + 8 at 7.30

[NZ Thunderstorm Soc]

Back online again with revamped computer.
Frost this morning. Down to minus 1.3C

[NZ Thunderstorm Soc]

A good white frost this morning. Down to minus 1.7C.

[Richard]

Was + .9 at 2.00am then a warmer trend followed and reached 7,1 at 5.20am, sky still clear and no wind

[NZ Thunderstorm Soc]

Dunno if there was a frost this morning. didn't look like it although it got down to minus 0.1C.
Cs sky this morning around 7am, with halo around the moon,when I went out to collect the paper.

[NZ Thunderstorm Soc]

Down to minus 1.6C overnight but warmed up to 0.6C just before 8am, when I went out to get the paper.

[Richard]

Was the same -1.3deg at 2.00am and by 6.00 it was 8deg

[NZ Thunderstorm Soc]

Slight frost this morning with the thermometer dipping down to zero.
Could be more frosts here as this bout of cold weather continues.