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We set a new monthly record low this morning of -4.4 C. This is a record for the aero site (59 years of data) and was only beaten by the botanical gardens site once in 1919 (records from 1863), so quite impressive.
Been a very chilly last few days, quite a shock after the warm weather last week. Highs barely breaking into double digits with sub-freezing lows. Still, it's been pretty sunny.
Quite nice here now -- 17 C and sunny. The forecast suggests that unseasonably cool conditions are likely to persist with a mixture of sun and rain:
Tomorrow15 Sep
High 16°C
Overnight 8°C
High cloud, evening rain. Northeasterlies.
Issued: 11:10am 14 Sep
Sunday16 Sep
High 11°C
Overnight 4°C
Rain clears to fine spells. Southwesterly dies away.
Issued: 11:03am 14 Sep
Monday17 Sep
High 13°C
Overnight 3°C
A period of rain. Fresh cold southerlies.
Issued: 11:03am 14 Sep
Tuesday18 Sep
High 14°C
Overnight 3°C
Mainly fine. Westerlies.
Issued: 11:03am 14 Sep
Wednesday19 Sep
High 13°C
Overnight 3°C
Dry. Light winds.
Issued: 1:10am 14 Sep
Thursday20 Sep
High 12°C
Overnight 4°C
Dry with light winds.
Issued: 1:10am 14 Sep
Friday21 Sep
High 11°C
Overnight 4°C
Showers with light winds.
Issued: 1:10am 14 Sep
Saturday22 Sep
High 12°C
Overnight 5°C
Showers with not much wind.
Yesterday saw the loveliest day in weeks with cloudy and rainy conditions prevailing with a strong southerly blowing in - funny how a southerly always feels warmer than an westerly . 5mm fell here - not a lot - but at least the driest September on record has been averted . Unfortunately today saw a return to very vapid and bad sunny weather
Temperatures dropped from 24C in the morning to 12C by evening. This is turning out to be an unusual September - the city is yet to reach 30C -, sunnier and drier than usual but it has remained cold to cool on most nights and it's not been that warm during the days too. On another weather (Oz) forum, a certain person was ranting on about how we would see a lot of 30C days this month - yet to happen - and that person is now so quiet....
This morning the low dropped to 7C in an, of course, icy cold wind blowing from the west. Looking forward to next week's easterly fetch with milder minimums, cloud and showers . About time we had a break from the monotonous sunny and dry westerlies!
The summer easterly wind pattern seems to have arrived early here, 25.6C today and 27C forecast for Saturday, 29C Sunday. We also recorded a 29C last Sunday. Normally we get our first 25C+ day during the Royal Show (last week of September), so it's easily been the warmest start to spring that I can remember.
Showers forecast for next week but nothing much in it...we will end up with a severe rainfall deficit again this year, barring some kind of freak storm. It's strange how dramatically this climate has dried up since the 1970's.
The summer easterly wind pattern seems to have arrived early here, 25.6C today and 27C forecast for Saturday, 29C Sunday. We also recorded a 29C last Sunday. Normally we get our first 25C+ day during the Royal Show (last week of September), so it's easily been the warmest start to spring that I can remember.
Showers forecast for next week but nothing much in it...we will end up with a severe rainfall deficit again this year, barring some kind of freak storm. It's strange how dramatically this climate has dried up since the 1970's.
It's not strange, as I have pointed out before - remember? - the poleward movement of the southern jet.
28.6C today and sunny, looking like it maybe a little thundery tomorrow with a few showers on and off through the week.
Quote:
Originally Posted by RWood
It's not strange, as I have pointed out before - remember? - the poleward movement of the southern jet.
Yes obviously the major reason for the drop of rainfall is the increasing influence of subtropical high pressure over the cooler months. My point is that it's strange how rapidly this shift occurred (over a couple of decades, in an area of highly reliable winter rains) , and the significance of the decrease in rainfall (~20%). I wouldn't think there are many other areas in the mid-latitudes that have seen such a drop.
I know of no other mid-latitude climates have seen that much of a decrease, but then again I'm not a sleuth when it comes to rainfall stats. The poleward movement of the jet stream that was mentioned appears to be for the most part a regional phenomenon.
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. 5mm fell here - not a lot - but at least the driest September on record has been averted 
. Unfortunately today saw a return to very vapid and bad sunny weather 
