2024/12/01

November 2024 Review

It's time for our big look back at Edmonton weather for a November 2024 which had a bit of everything.

November 2024's average High of -1.1°C ends up below our 10-year average of 1.1°C, and ranks as the 100th warmest on record. That's just ahead of 2022 & 2017, but below other recent Novembers.

The average Low of -7.5°C was basically right on the 10 year avearge.



High Temperatures
The start of November 2024 was well above average, and the end was well below. We weren't close to any records, but we end up with 14 above average Highs, and 16 below average.

On average November has 18 above-freezing Highs. 2024 was a little low with 16, although that included a 15°C day (15.4°C on the 8th) which is pretty unusual in November. We also had 3 Highs below -15°C, which is the most since 2011.



Low Temperatures
For November 2024's Lows we set a new record of 5.2°C on the 7th.

The back half of the month was well below average, although also well above the bottom of our range. 17 were above average and 13 were below.

On average November has 3 Lows above freezing, and 2024 had 5.

We didn't get down to -20°C, although we got close -19.5°C on the 28th. November averages around 3 Lows below -15°C, and 2024 had 7.



Cold Days in a Row
This month wasn't as extremely cold as some of the Novembers that we got back around 2010-2014, but November 2024 did have 11 Lows in-a-row below -13°C, which is the most since 1996.



Warm & Cold Months
November's average High of -1.1°C was -1.6°C colder than the 20th century average, so it's a blue bubble here. The average Low of -7.5°C was 1°C warmer, so it's a little orange bubble.



Across Canada
November 2024's Highs were cool in the west and warm in central Canada. That ranged from Calgary at -2.3°C below their 20th century average for November, to Quebec City at 3.9°C above theirs.



The Horserace
With one month left 2024 currently ranks as Edmonton's 15th warmest year on record overall, at 1.7°C above our 20th century average. That's high, but it's well below 2023's 1st place 3.3°C.

2024 currently ranks as the warmest year on record for Winnipeg, Ottawa, Montréal & Charlottetown. For Kelowna, Quebec City & St. John's it's #2, and for Toronto, Moncton and Halifax it's #4~5. We will see where things up at the end of the year.

For Winnipeg 2024 is in a tight race with its previous warmest year, 1987. But Montréal, Ottawa & Charlottetown are all well ahead of their previous records.



Precipitation
In November Edmonton averages 20mm of precipitation (rain+snow). 

In 2024 Blatchford got 28mm, the airport got 20mm, and Stony Plain got 19mm. So it was pretty average, following a very dry October.

By the end of November we average 422mm of precipitation for the year.

In 2024 the local stations are well below that, because of the dry July. The airport's 352mm is the highest, followed by 345mm at Blatchford, with the rest below that.

For total precipitation for the year so far St. John's is well in the lead with over 1500mm - that's high, but not extreme. Vancouver's 1168mm is the most they've had since 1999. Toronto's 1,081mm is their wettest Jan-Nov on record, ahead of 1,025mm in 2013.

For big November storms: 
  • Halifax got 52.8mm on the 23rd
  • St. John's got 49.2mm on the 23rd, and 3 other 30mm+ days
  • Vancouver got a lot of water (203mm, or about 1/2 of what Edmonton gets in a year), but the biggest single day was the 16th with 26mm.



Snow
In November we average 20cm of snowfall, and 8 days with snow. 2024 was pretty average, with 24cm and 9 days.

At the end of November we average around 10cm snowdepth. Of the local stations Elk Island was the highest with 19cm, and the rest were from 11-15cm.

In 2024 our snowdepth didn't take off until November 20th, which is a few weeks later than a lot of years. But last winter, with the big 2023-2024 El Niño we didn't really see lasting snow until mid-January.

At the end of November the cities with snowfall so far are Calgary's 34cm, Edmonton's 24cm, Moncton's 15cm, and (checks notes) Vancouver's 4cm, and a few more below that.
(although cities like Winnipeg and the Saskatchewan cities don't measure snowfall anymore)

For snowdepth measurements a few more cities are on the board. Saskatoon got up to 38cm, Dawson City to 30cm, Calgary to 24cm, Edmonton to 13cm & Regina to 11cm, with a few others below 10cm.



December
In December we average about 10 days with Highs above 0°C.

For the Lows, about half of the time December will hit -25°C, but since 1990 there have been 6 Decembers which didn't hit -20°C (including 2019 & 2023). 

 December averages 16cm of snow.

2024/11/01

October 2024 Review

It's time for our big look back at Edmonton weather for a pretty quiet October 2024.

October 2024's High of 11.5°C ends up a little above average, as our 66th warmest on record. That's just ahead of 2023, just a bit below 2021, and well below 2022's 15.5°C. The average Low of 1.8°C was the 11th warmest.

October, along with April, is one of the rare months where our average High temperatures haven't increased much over the past century. A month like January is waaaay up, and July is up a bit, but April and October are pretty flat. The Lows are all up, though.



High Temperatures
October's Highs were pretty unremarkable. We had a few pretty warm days around the 7th, but the rest of the month was mostly just a bit above average. Overall we had 19 Highs above average, and 12 below.

On average October has 2 days reach 20°C, and 2024 was right on average with 2. The warmest was 23°C on the 7th. October averages 2 Highs below freezing, and 2024 had none. The coldest was 0.4°C on Halloween.



Hot Days
We've probably seen the final 20°C day of 2024, for a total of 97. That's around average, but well below 121 in 2023 and 119 in 2022. For 30°C Highs 2024 was #2 with 16, behind 2021's record of 17.



Low Temperatures
October 2024's Lows were mostly above average, but none were close to records. Overall 25 were above average and 6 were below.

As we get further into October the chance of freezing Lows increases. 2024's first was on the 12th, and we had 9 overall. That's below October's average of 13. We had no Lows below -5°C, when the average is 3.



First Frost of Fall
October 12th was the first frost for both Blatchford & Stony Plain. Their averages are September 29th and 25th respectively. It was Stony Plain's 2nd latest on record, and Blatchford's 6th. Recently 2022 & 2023 had the records, on October 23rd & 22nd.

October 12th is the first fall frost for both Blatchford & Stony Plain. The airport's was back on September 21st, which was about 2 weeks later than its average. Campsie (100km NW) was September 9th, which was about a week early.



Warm & Cold Months
October's average High of 11.5 was 0.4°C warmer than the 20th century average, so here it's a little orange bubble. The Low of 1.8°C was 2.3°C warmer, and gets a medium bubble.



Across Canada
October 2024 was fairly warm across the country. Victoria's average High was right on their 20th century average, but every other city here was above average, with Regina at the top at 3.6°C above their October average.



Precipitation
In October Edmonton averages 19mm of precipitation. In 2024 the airport got 12mm, while Stony Plain was down at 4mm and Blatchford got a whopping 2mm.

By the end of October we average 402mm of precipitation. In 2024 the local stations are well below that, because of the dry July. The airport's 332mm is the highest, followed by 317mm at Blatchford, with the rest below that.

October 2024 was a pretty quiet month for storms, but so were 2023 & 2022.

For total precipitation for the year so far St. John's is now in the lead with nearly 1200mm. Toronto has flattened out after a wet summer, but their 1,041mm is still their most on record for January-October.

For big October storms: 
  • Vancouver had 67.1mm on the 19th, and 130.1mm from the 18-20th.
  • Victoria got 41mm on the 19th
  • St. John's and Charlottetown had ~35mm days



November
For November, we average around 18 Highs above 0°C, but we also start seeing lows of -10°C or -15°C. -20°C even shows up sometimes, like in 2022, and 2010-2015. 2014 got down to -29.8°C.

2024/09/30

September 2024 Review

It's time for our big look back at Edmonton weather for September 2024.

September 2024 started with some heatwaves, and the average High of 21.6°C was our 6th warmest on record. just a bit below 2022's 21.9°C. The average Low of 9.2°C was the 2nd warmest, just behind 2022's record of 9.4°C.



High Temperatures
September started off hot, with two batches of 30°C days. Then for the rest of the month it was mostly a little above average, but cooled off right at the end. Overall there were only 6 below-average Highs. The hot days set 2 new records on the 6th and 8th.

September 2024 had 5 30°C days, which is the most ever recorded. September averages 3 25°C days, and 2024 had 7. And it averages 8 20°C days, and 2024 had 19. We didn't have any Highs below 10°C, which happens about half of the time.



Hot Days So Far
We've probably seen the final 30°C day of 2024. It's had 16, which is the 2nd most on record, behind 2021's 17. 2021's 30°C days stretched from late-June through mid-August. 2024's were all in July & September.

2024 had 26 Highs reach 28°C, which is the 3rd most on record. 1961 had 28, and 2021 had 32. 2024's 45 25°C days is above our average of around 32, but it's below 2023, 2022, 2021, 2018, 2017 & 2015.



Low Temperatures
September 2024 set 2 new record waremst-Lows on 7th and 25th. Overall there were only 3 below-average Lows, and the coldest was 3.2°C on the 21st.

September had 1 Low reach 15°C, which has only happened 6 other times, most recently in 2022. And it didn't record any frosts, which happens about half of the time. Blatchford's last September with frost was 2019.



First Frost of Fall
For the outlying stations Campsie's first frost was September 10th, just behind its average of the 6th. The airport's was the 21st, when its average is the 10th. Blatchford's average is September 28th, but 2022 & 2023 were October 23rd & 22nd. Where will 2024 end up?



Warm & Cold Months
The warm September joins July here as a large orange bubble. The High of 21.6°C was 4.7°C warmer than the 20th century average. The Low of 9.2°C was 4.6°C warmer.



The Horserace
With 3 months left in the year, 2024 is our 16th warmest year on record, and 1.6°C warmer than the 20th century average. Separately the Highs are only 26th warmest, while the Lows are 9th warmest.



Across Canada
September 2024 was above average across the whole county. Regina was at the top, whose average High of 25.5°C was 6.6°C warmer than their 20th century average.



Precipitation
In September we average 34mm of precipitation. In 2024 Stony Plain was a little high with 37mm, while the airport & Blatchford were low with 28mm & 22mm.

By the end of September we average 393mm of precipitation. In 2024 the local stations are well below that, because of the dry July. The airport's 320mm is the highest, followed by 315mm at Blatchford, with the rest below that.

September 2024 was a pretty quiet month for storms. The biggest was the 26th with about 10mm around town. September averages 10 days with precipitation, and 2024 was pretty typical.

For total precipitation for the year so far Halifax, St. John's & Toronto are all over 1000mm. For Halifax & St. John's that's pretty average, but for Toronto it's the most ever recorded for January-September. Their 1012mm in 2024 is well above 2nd place 2013's 891mm.

For big September storms: - Halifax had 53mm and Moncton had 48mm on the 7th - Toronto had 48mm on the 23rd - Calgary had a surprising 43mm on the 12th



October
For October, we average about 1~2 Highs of 20°C, but half of the time there are none. October also averages 2 Highs below 0°C, and 14 freezing Lows. And...7cm of snow on average, although 2021 & 2022 had none.

October, along with April, are the strange months where the Highs haven't warmed up much over the years. The Lows have crept up, but the Highs are in the same range that they've been for a century (although October 2022 was very warm).