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Lowest Maximum: 12°C / 53°F (21st)
Highest Minimum: 15°C / 59°F (11th)
---------------------
Precipitation: 28 mm
Days with rain/drizzle: 17
Most in one day: 8 mm (24th)
Sunshine: 131 h
So a dry and mild October for the area, once again.
Wow, Invercargill beat us by 13 hours. I guess it's going to happen from time to time.
According to NIWA Nelson Aero recorded 171 hours, Appleby 2 EWS 176 hours and Blenheim Research EWS 165.
Balclutha, in south Otago, measured 211 hours but I suspect this is somewhat faulty as readings in previous months has been too high compared to surrounding areas.
Northerly airflows bring cloud and rain to Nelson and the reverse for Invercargill but during W-SW airflows, Nelson fares quite poorly whereas Invercargill gets the ‘best” of it.
Invercargill, last year, had its sunniest October on record with 238.9 hours – previous high 234.7 hrs in 1937 - and even though this year's total was comparatively lower, it was still well above average and one of the sunniest main centres in the whole country; a fact in which my brother did not like at all.
Due to numerous requests, the MTD for both NZ and Australia centres:
North Auckland: 190
South Auckland: 166
Wellington: 126
CHCH: 141
DUD: 169
INV: 184
Sydney: 207
Melb: 205
In Melbourne's case it were the 5th consecutive cloudy October, at the current site, and a far cry from 2006 when the record high of 305 hours was reached.
As for Sydney: the 14th consecutive month of well below to average sunshine. Not since August last year has the monthly total exceeded 271 hours. Last year saw the lowest total since 1999 (2499 hrs) with 2512 hours measured at the airport site which was nearly around 120 hours below average.
In fact all Australian state capitals (for October) measured well below average sunshine:
Darwin: 278.5
The Alice: 269.4
Perth: 267.9 (lowest total since 1993; 264 hrs)
Adelaide Airport: 244.2
Brisbane: 234.8
Hobart: 219.8
Sydney: 207.9
Melbourne: 204.9
Canberra: 201.7 (4DM)
Rain: only the ACT, coastal NSW and to an lesser extent, SA and TAS, fared very poorly in terms of the MTD rainfall in spite of the higher than usual number of showery/rain days especially in the case of NSW :-(
Darwin: 149.2
Brisbane City: 117.8
Brisbane Aero: 100.6
Melbourne Aero: 71.6
Perth Aero: 64.4 (highest Oct. total in 12 years)
Melbourne City: 64.2
Perth: 64.2 (highest Oct. total in 12 years)
Hobart: 61.2
Sydney Aero: 46.4
Adelaide City: 41.8
Hobart Aero: 40.4
Sydney (Ob Hill): 37.4
Rose Bay: 36.8 (prelim.)
Adelaide Aero; 23.2
The Alice: 11.8
Also bear in mind that the distance between those two Auckland sites is around 60km apart which makes a big difference.
From what I've obtained from the NIWA database, the south Auckland site tends to be a bit more cloudier than the North Auckland one (Albany) in W-SW airflows and the reverse in N-NE conditions. I'm very glad that NIWA set up the new north Auckland site as it very clearly measures the differences between those two sites, it would even be more better if they set one up each on the North Shore, Eastern Auckland and on the isthmus too. There used to be several in the case of the latter but they kept getting closed down.
There's almost not a single site in Australia - apart from Adelaide city in which I don't even bother with it (and the same applies to Canberra too) as there's too much data missing - which simultaneously records sun at the same time.
In Sydney's case, I live right on the coast and work in the CBD and on many occasions I've observed a lot of cloud hanging around just north of the airport blocking out the sun whereas the airport site often shows hours of unbroken, or high, sunshine.
I know that, due to obstructions from nearby tall buildings, Observatory Hill site is not an ideal location but they could surely set up a new site at, say Bondi or Rose Bay, as I feel those locations would further reveal the true picture of "sunshine".
According to NIWA Nelson Aero recorded 171 hours, Appleby 2 EWS 176 hours and Blenheim Research EWS 165.
Balclutha, in south Otago, measured 211 hours but I suspect this is somewhat faulty as readings in previous months has been too high compared to surrounding areas.
Northerly airflows bring cloud and rain to Nelson and the reverse for Invercargill but during W-SW airflows, Nelson fares quite poorly whereas Invercargill gets the ‘best” of it.
Invercargill, last year, had its sunniest October on record with 238.9 hours – previous high 234.7 hrs in 1937 - and even though this year's total was comparatively lower, it was still well above average and one of the sunniest main centres in the whole country; a fact in which my brother did not like at all.
The Balclutha EWS reads too high, like most of them. Not so for Invercargill of course as I have pointed out many times. Last year Invercargill EWS registered 86 hours less than the manual equipment did, similar to the average difference through their joint history. I have yet to get any sort of satisfactory answer regarding the Invercargill anomaly - and no centralised checking to investigate such matters means it may be a long time before it is ever explained. Until that distant day the suspiciously high improvement in sun values at the manual site, uncorrelated with rainfall or rainday frequency will remain just that. NIWA are far too stretched in their resources to spend time on such projects.
Also bear in mind that the distance between those two Auckland sites is around 60km apart which makes a big difference.
From what I've obtained from the NIWA database, the south Auckland site tends to be a bit more cloudier than the North Auckland one (Albany) in W-SW airflows and the reverse in N-NE conditions. I'm very glad that NIWA set up the new north Auckland site as it very clearly measures the differences between those two sites, it would even be more better if they set one up each on the North Shore, Eastern Auckland and on the isthmus too. There used to be several in the case of the latter but they kept getting closed down.
Even after October's lead Albany is 20 hours behind Mangere to end-October this year, quite unlike last year. They may have tuned the instrument to more realistic readings. I will be surprised if the average overall difference amounts to much. EWS equipment at Paraparaumu however is still giving numbers that are far too high.
That's an incredibly low max dew point! I knew Colorado was dry; but I didn't realize it was that dry. Our average last month was 44°F, max 70°F. We had an 85°F day; dew point 54°F.
You also got a lot more sunshine than us. Only 3 cloudy days...
Yeah, it's usually sunny here. In fall, it's usually a cloudless morning and cold and crisp. Some clouds roll in the afternoon, but not like summer. But you see the sun plenty here. It was dry here, shocked myself a few times opening doors.
Average high 14.7C/ 58.5F
Average low 6.2C / 43.2F
Average temp 10.5C / 50.9 F
Highest high 27.5C / 81.5F
Lowest high 4.7C / 40.5F
Highest low 13.7C / 56.7F
Lowest low -2.0C/ 28.4 F
Precipitation: 119.2 mm/4.69 in. over 16 days (all rain, no snow).
Warm spell for a week or so early-mid month (five days above 20C); the rest more seasonal. A few frosty nights at the end of the month (first frost on the 27th).
Environment Canada can never get their act together and get the data out for the month in a timely manner (i.e. the next day). I think it is due to budget cuts.. I read they had to lay off some of their staff a few months ago.
Quote:
Originally Posted by nei
Did Winnipeg really record 0.0 mm of precipitation ?!
Overall, a cool, cloudy, rainy month -- exactly the kind I hate! quote]
Not disputing that of course. What we face in both our cities is the strong possibility of having 2 consecutive years with sunshine somewhat below the 1971-2000 mean (and more so relative to the 1981-2020 mean). This has not happened here since 1992-93, or in Ch'ch since 1991-92. The adaptation phenomenon means that the change seems more marked, too.
What we face in both our cities is the strong possibility of having 2 consecutive years with sunshine somewhat below the 1971-2000 mean (and more so relative to the 1981-2020 mean). This has not happened here since 1992-93, or in Ch'ch since 1991-92. The adaptation phenomenon means that the change seems more marked, too.
This makes me angry! November got off to a good start here, but we just had our first day with nil sunshine and it looks like we will have a lot more in the next couple of weeks.
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