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  #27301  
Old Posted Oct 1, 2020, 4:11 PM
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This was our first September in 11 years where we failed to reach 30.0C . The last time was back in 2009.

Our average high was 21.5C
(exactly normal). We did get a couple nights of light frost but nothing catastrophic.
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  #27302  
Old Posted Oct 1, 2020, 4:14 PM
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St. John's Weather - September 2020

St. John's International Airport (Official Station)

Average high: 19.2 (2.7 degrees above normal)
Average low: 10.3 (2.1 degrees above normal)
Mean temp: 14.8 (2.4 degrees above normal)

Highest high: 26.6 (September 5)
Lowest high: 10.8 (September 20)

Highest low: 17.9 (September 30)
Lowest low: 2.4 (September 20)

Monthly rainfall: 100.1 mm (29.5 mm less than usual)
Strongest wind gust: 85 km/hr (September 17)
Highest humidex: 33 (September 30)

Days above 20: 10
Days above 25: 3
Days above 30: 0


CBC University Avenue

Average high: 19.8
Average low: 11.2
Mean temp: 15.5

Highest high: 26.9 (September 5)
Lowest high: 10.7 (September 20)

Highest low: 18.4 (September 30)
Lowest low: 3.8 (September 21)

Strongest wind gust: 64 km/hr (September 17)
Highest humidex: 34 (September 30)

Days above 20: 15
Days above 25: 3
Days above 30: 0

------------

Above average September for St. John's. Warmer than July too (lol).
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  #27303  
Old Posted Oct 1, 2020, 6:22 PM
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Edmonton had a very pleasant September. Not hot, not cold, just nice.

Avg High: 18.7
Avg Low: 7.5
Total Rain for the month: 5 mm (very dry)

First September since 2017 that we haven't had temps dip below zero even once. In fact, if we make it to Oct 19, it will be officially 6 months since the temp at Edmonton Blatchford has gone below 0.0 (which last happened April 19). I doubt we'll get that far, but who knows! 2020 has been weird! LOL
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  #27304  
Old Posted Oct 1, 2020, 6:43 PM
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Quote:
Originally Posted by goodgrowth View Post
That jet stream:

Calgary and Edmonton have had a very calm quiet start to Fall as compared to other parts of Canada with smoke and post tropical rainfall. Alberta looks to start October with no mentionable large fluctuations in temperature or weather events.
Just looking at that weather network website they show Canada's first snowfall for southern parts of the country this weekend and for once it's not Calgary like it usually is.

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  #27305  
Old Posted Oct 1, 2020, 7:05 PM
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  #27306  
Old Posted Oct 1, 2020, 7:33 PM
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Original post was in the wrong thread. Oops.

Currently 24C as of 2pm. Gorgeous afternoon.

Last edited by hollywoodcory; Oct 1, 2020 at 8:10 PM.
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  #27307  
Old Posted Oct 1, 2020, 9:31 PM
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This might be our hottest October day in my 9 October's here, if we hit 24.2 degrees. There's a good chance we've exceeded that, as it's been 23.5 for two straight hours now.
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  #27308  
Old Posted Oct 1, 2020, 9:38 PM
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MétéoMedia made a Facebook post today about the prospects for October with "Été des Indiens" in the title.

Most of the comments below were about the accuracy of the forecast, but when there was some talk about the use of the term, it was almost all about whether the proper term was "Été des Indiens" or "Été indien". And not about... you know.
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  #27309  
Old Posted Oct 1, 2020, 9:43 PM
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I may be out to lunch but my impression is that we will be reaching peak leaf colour a bit early this year. We seem very well along for just the first of October, and things started earlier than usual in September.

Now, we had a really cold stretch in mid-September but in spite of popular beliefs leaves turning colour are not really related to cold temperatures.

They are a reaction to the decline in daily sunlight I believe. In theory the change should occur roughly around the same time every year as a date's daylight hours don't change from year to year, but I wonder if we are especially cloudy (as this September kinda was) if that will accelerate the leaf colour change?
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  #27310  
Old Posted Oct 1, 2020, 9:55 PM
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Quote:
Originally Posted by Acajack View Post
I may be out to lunch but my impression is that we will be reaching peak leaf colour a bit early this year. We seem very well along for just the first of October, and things started earlier than usual in September.

Now, we had a really cold stretch in mid-September but in spite of popular beliefs leaves turning colour are not really related to cold temperatures.

They are a reaction to the decline in daily sunlight I believe. In theory the change should occur roughly around the same time every year as a date's daylight hours don't change from year to year, but I wonder if we are especially cloudy (as this September kinda was) if that will accelerate the leaf colour change?
Yes, it seems to me that we are about a week ahead of normal.
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  #27311  
Old Posted Oct 1, 2020, 10:25 PM
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Quote:
Originally Posted by Acajack View Post
Now, we had a really cold stretch in mid-September but in spite of popular beliefs leaves turning colour are not really related to cold temperatures.

They are a reaction to the decline in daily sunlight I believe. In theory the change should occur roughly around the same time every year as a date's daylight hours don't change from year to year, but I wonder if we are especially cloudy (as this September kinda was) if that will accelerate the leaf colour change?
It is possible the daylight hours play some direct role but the idea that it is the dominant factor is not really consistent with microclimates.

Around here at nearly the same latitude you can find inland (higher elevation/colder, and sunnier) areas that turn much earlier while the coastal and lowland areas are much later. It is the same in NS where a drive from the interior of the province to the coast (which is only 30 mins or so) can look like going forward or backward in time by weeks.

I would guess that the minimum temperatures have a big impact, with few deciduous trees keeping their leaves once temperatures have been near 0 or below for significant periods of time.
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  #27312  
Old Posted Oct 1, 2020, 11:36 PM
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Quote:
Originally Posted by Chadillaccc View Post
This might be our hottest October day in my 9 October's here, if we hit 24.2 degrees. There's a good chance we've exceeded that, as it's been 23.5 for two straight hours now.
24.2 is the high so far today.
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  #27313  
Old Posted Oct 1, 2020, 11:57 PM
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Fairly smoky again in Vancouver today.
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  #27314  
Old Posted Oct 2, 2020, 12:35 AM
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Quote:
Originally Posted by someone123 View Post
It is possible the daylight hours play some direct role but the idea that it is the dominant factor is not really consistent with microclimates.

Around here at nearly the same latitude you can find inland (higher elevation/colder, and sunnier) areas that turn much earlier while the coastal and lowland areas are much later. It is the same in NS where a drive from the interior of the province to the coast (which is only 30 mins or so) can look like going forward or backward in time by weeks.

I would guess that the minimum temperatures have a big impact, with few deciduous trees keeping their leaves once temperatures have been near 0 or below for significant periods of time.
Heck in Hamilton even elevation makes a difference. Trees on top of the mountain go earlier than those at lake level. The mountain is typically a degree or two cooler as well, which is what likely contributes to it.
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  #27315  
Old Posted Oct 2, 2020, 1:25 AM
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Strangely, around here the first to go are trees in marshy areas. There were a few trees with colour at Rondeau and Pelee last week, but not in the heavily wooded areas, only at the edge of marshes.
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  #27316  
Old Posted Oct 2, 2020, 1:55 AM
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Weird weather today. Sunny, then rainy, then sunny, then hail and thunderstorms, then sunny. High was just 15.8, our coolest day yet.

We're getting quite a light show right now, strange to have so much lightning when it's only 9 degrees.

Went to a corn maze this evening, pretty neat. Terry Fox theme.





Pumpkin harvesting
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  #27317  
Old Posted Oct 2, 2020, 3:41 AM
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Freeze List - 2020

1) - Whitehorse YT - September 5th (-0.3C)
2) - Saskatoon, SK - September 7th (-3.4C)
3) - Regina, SK - September 7th (-0.9C)
4) - Winnipeg, MB - September 8th (-0.7C)
5) - Iqaluit NU - September 8th (-0.4C)
6) - Thunder Bay, ON - September 9th (-0.3C)
7) - Yellowknife, NT - September 12th (-0.1C)
8) - Prince George, BC - September 15th (-1.2C)
9) - Sherbrooke, QC - September 15th (-1.1C)
10) - Sudbury, ON - September 17th (-0.4)
11) - London, ON - September 19th (-0.6C)
12) - Ottawa, ON - September 19th (-0.4C)
13) - Quebec City, QC - September 19th (-0.1C)
14) - Fredericton, NB - September 20th (-2.4C)
15) - Charlottetown, PEI - September 20th (-0.2C)
16) - Saint John, NB - September 21st (-2.1C)
17) - Moncton, NB - September 21st (-1.3C)
18) - Lethbridge, AB - October 1st (-0.3C)


Vancouver BC
Victoria BC
Kamloops BC
Kelowna BC
Calgary AB
Edmonton AB
Windsor ON
Toronto ON
Kingston ON
Montreal QC
Halifax NS
Sydney NS
Corner Brook NL
St. John's NL

Lethbridge added to the list.
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  #27318  
Old Posted Oct 2, 2020, 3:54 AM
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Our monthly stats... coldest September in 20 years (since 2000). Just overall a very crappy month. Felt like the Prairies with those cold nights.


Mean: 15.0
Avg high: 19.8
Avg low: 10.1

Days over 25: 3
Days over 20: 17
Days over 15: 26

Lows over 15: 6
Lows over 10: 17
Lows over 5: 24

Highest high: 27.6
Lowest high: 13.7

Highest low: 18.4
Lowest low: 2.0

Rain: 75.8mm

The fact our warmest day this month happened on Sept 27th and our warmest low was on Sept 28th (when day length is 1h 25 min shorter than at the beginning of the month) should tell you enough about this month.
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  #27319  
Old Posted Oct 2, 2020, 3:58 AM
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18C today and a mix of sun and clouds. We had everything... some sunshine, some cloud cover, some brief but heavy downpours. Typical October day.

Low of 12C this morning.

The warmspot was Bullhorn Coulee Reservoir, AB at 25.8C.
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  #27320  
Old Posted Oct 2, 2020, 4:12 AM
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Quote:
Originally Posted by Doug_Cgy View Post
Edmonton had a very pleasant September. Not hot, not cold, just nice.

Avg High: 18.7
Avg Low: 7.5
Total Rain for the month: 5 mm (very dry)

First September since 2017 that we haven't had temps dip below zero even once. In fact, if we make it to Oct 19, it will be officially 6 months since the temp at Edmonton Blatchford has gone below 0.0 (which last happened April 19). I doubt we'll get that far, but who knows! 2020 has been weird! LOL
Although it's only been slightly warmer than normal it's felt much nicer, in part because it's been so dry and sunny, and in part because the last few Septembers (2018 in particular) were so horrible!
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