Weather nerdery for Edmonton Alberta, with side discussions of nearby rural stations, and other big Canadian cities.
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We're not breaking records, but we're still well above average for this time of year. #yegwx #yeg September 9th's 28.9°C was the 3rd warmest on record, behind 29.5°C in 2011, and 32.9°C in 1981. The Low of 12°C was 5th warmest. 2013 has that record at 13.9°C. public.tableau.com/shared/RK7JC...
...and that brings us to the end of our look back at August 2025 weather in Edmonton. All of these charts are interactive dashboards with data for 17 Canadian cities, accessible at: edmontonweathernerdery.blogspot.com/2025/09/augu...
...for September we average 11 days at 20°C, including 3 at 25°C. And 2024 & 2022 both started with heatwaves. For Lows, about half of the time September is frost-free, but right now our last September frost was 2019. public.tableau.com/shared/4H5C7...
...across the country the biggest August storms were: Halifax & Vancouver over 40mm Ottawa around 35mm Quebec City, Toronto & St. John's around 25mm public.tableau.com/shared/XHR3H...
...these is the precipitation for 2025 across the country. Quebec City is way out ahead with over 800mm. Montréal, St. John's & Halifax are over 600mm. Calgary is at 423mm, while Edmonton and the other prairie cities (also Kelowna & Victoria) are below 250mm. public.tableau.com/shared/JSJZ3...
...by the end of August we average around 345mm of precipitation for the year (about 80% of our yearly total). The airport and Campsie are right around average, while Stony Plain is at 266mm, and Blatchford is down at 248mm. public.tableau.com/shared/R857B...
...the big difference between the stations was the Blatchford's biggest day was only 11mm. The airport had 2 days around 15mm, and Campsie had 3 over 20mm. public.tableau.com/shared/84JM8...
...August averages 52mm of precipitation, which is our 3rd highest month. In 2025 Blatchford was down at 28mm, Stony Plain got 44mm, the airport got 61mm, and Campsie (100km NW) got up to 114mm. public.tableau.com/shared/7ZR38...
...one of the weird quirks of Edmonton's recent heatwaves is that this is the 2nd summer in-a-row where we've had as many (or even more) 30°C days than Winnipeg. public.tableau.com/shared/289PW...
...August 2025 was another mostly above-average month across the country...except for Winnipeg. Kelowna & Edmonton were at the top, with Highs more than 3.7°C above their 20th century averages. Winnipeg was at the bottom, and -0.2°C below theirs. public.tableau.com/shared/BFXCG...
...August 2025's average High of 25.7°C was 3.7°C warmer than the 20th century average, so it gets a medium orange bubble. But 2022 was warmer overall. The average Low of 12.9°C was 3.3°C warmer also gets a medium orange bubble, similar to 2022-2024. public.tableau.com/shared/NY8N9...
...how does the heatwave affect 2025's overall temperatures? The mean was already around top-20, and 1.5°C warmer than the 20th century average. August's hot week is visible here with the red line climbing upwards at the end, to around 13th warmest overall. public.tableau.com/shared/P7RP6...
...August averages 4 Lows over 15°C, and 2025 had 7. But those were all early in the month. During the big heatwave dropped to around 12-14°C overnight. public.tableau.com/shared/JYGP4...
...and the Lows? Compared to the Highs they were a bit boring. For other recent heatwaves we had a lot of record-setting Lows, but August 2025 was warm without being flashy. 21 Highs were above-average and 10 were below. public.tableau.com/shared/RQXYW...
...at the end of August, so far 2025 has had 14 30°C days. That ties 1964 for 3rd most ever recorded. The only years with more? 2024 had 16, and 2021 had 17. (and with the forecast for September, we might catch them?) public.tableau.com/shared/5X28R...
...the previous August record for 30°C days was 7, in 1967 & 1932. But 2025 sets a new record with 8. August 2025's 4 32°C days is also a new record, ahead of 3 in August 2008 & 1981. The 2 33°C days also tie 1922's record. public.tableau.com/shared/WBW34...
...overall, 2025 now has 6 new record Highs. That's fewer that 2024's 11, but more than the 5 for 2021-2023. Just for the summer months of May-September, since 2021 we've set 29 new records, or about 20% of all of the days. public.tableau.com/shared/3ZD8M...
...we set 4 new record Highs in-a-row, from August 26th-29th. Those ranged from 32.2°C to 33.3°C, and were the 4th, 6th, 8th & 9th warmest temperatures ever recorded this late in the year. public.tableau.com/shared/4KZM4...
...the August heatwave also gave us 4 32°C Highs in-a-row. That ties the all-time record from July 2021 and June 1961. And it also doubles the previous late-summer record, which was only 2 in-a-row. public.tableau.com/shared/296KR...
...the August heatwave gave us 6 30°C Highs in-a-row. That's the longest for this late in the year, and is 1 short of the all-time record set in July 2024 and July 2021. For late-August the previous record was only 3, and 2025 doubled that. public.tableau.com/views/Edmont...
...so what made this heatwave unique? Our 30°C season can last from May-September, but it peaks in mid-July. From around June 22-August 18 is when we're most likely to reach 30°C. By August 25 we can still get there, but we're definitely out of the peak time. public.tableau.com/shared/T8K5P...
...August averages around 10 25°C Highs, and 2025 had 19. That included 8 30°C Highs, when the average is around 1. The hottest was 33.3°C on the 27th. The coldest was 13.1°C on the 15th. public.tableau.com/shared/XCR7Q...
...August 2025 started warm, but then was maybe a little cool. But it ended with 8 straight 28°C Highs, 8 of which got to 30°C, and 4 of which got to 32°C. Overall there were 8 below-average Highs compared to 21 above-average, including 4 new records. public.tableau.com/shared/598ZG...
...August 2025's average High of 25.7°C was the 4th warmest on record. That's obviously hot, although recently 2022 got to 2nd spot with 26.6°C. The average Low of 12.9°C was the 9th warmest. And again, that's warm. But it was actually below 2024, 2023 & 2022. public.tableau.com/shared/R23C3...
It's time for our big look back at Edmonton weather for August 2025. August has 31 days, but we're going to talk a lot about the final week. "Unprecedented" gets thrown around a lot, but August gave us an unprecedented heatwave. edmontonweathernerdery.blogspot.com/2025/09/augu... #yegwx #yeg
...2025 now has 14 30°C Highs, which is tied for the 3rd most on record with 1961. The only years with more are 2024's 16, and 2021's 17. public.tableau.com/shared/RXB5Y...
...our streak of 30°C has reached 6 in-a-row. For this time of year the old record was 3. And we're just one away from the overall record of 7, from 2024 & 2021. (Edmonton has only gotten to 6 in-a-row 4 times, and 3 of them have been since 2021) public.tableau.com/shared/QJJ29...
...our string of 32°C ends with 4 in-a-row, which ties 2021 & 1961 for the most ever recorded. Our string of 31°C continues with 5 in-a-row, which is the longest on record for this time of year (2022 had 3). The overall record is 7 from 2022 & 2021. public.tableau.com/shared/7SCYW...
August 30th's High of 31.4°C wasn't another record, but it was the 3rd hottest on record, behind 31.9°C in 2021 and 32.2°C in 1940. The Low of 13.4°C was 7th warmest. The record of 16.7°C is from 2021 & 1971. #yegwx #yeg public.tableau.com/shared/35HYN...
bsky.app/profile/did:...
Yeah, that first week of september looks interesting.
At 2pm we're up to 6 30°C days in-a-row, which continues to extend the new record for this time of year (the old record was 3). And it's one away from the all-time record of 7 from 2024 & 2021. #yegwx #yeg
...this is also now the 2nd summer in a row where we've had as many (or more) 30°C days as Winnipeg, which is weird. public.tableau.com/shared/GBQ3X...
...August 29th was our 4th new record High this week, and the 6th this year. That's less that 2024's 11, but more than the 5 from 2023, 2022 & 2021. public.tableau.com/shared/3RJ6N...
...32°C and 33°C days aren't all that common around here. 2025's 5 32°C days ties for 6th most on record. The 2 33°C days ties for 7th. public.tableau.com/shared/KCJ8Z...
...2025 now has 13 30°C Highs in total, which ties 2002 for 4th most on record. The only years with more are 1961 with 14, 2024 with 16 & 2021 with 17. public.tableau.com/shared/KSJRR...
...we've also had 4 32°C Highs in-a-row. That's a new record for this time of year, ahead of 2 in-a-row in 2022 & 1940. And that also ties the all-time record with June/July 2021, and June 1961. public.tableau.com/shared/QB3G6...
...we've had 5 30°C Highs in-a-row. That's a new record for this time of year, ahead of 3 in 2024, 2022 & 1967. It's also only 2 short of the all-time record of 7, from both July 2024 & June/July 2021. public.tableau.com/shared/NR9B4...
...4 records in-a-row might be it for now, because the forecasts are a tiny bit cooler, and the records for the next few days are both 32.2°C. But this week has given us the 4th, 6th, 8th & 9th hottest temperatures ever recorded this late in the year. public.tableau.com/shared/JQFWH...
Heatwave day 5: August 29th's High of 33.1°C set another new record, ahead of 32.2°C from 2023. #yegwx #yeg That's the 4th new record High in-a-row. The Low of 13.6°C was 8th warmest... public.tableau.com/shared/5SHFB...
Today is the 30th new record High set during the last 5 summers, giving 20% of the summer days new records.
And so, a High of at least 32.5°C at 3PM gives us: - new record for August 29 - 4 new records in a row - 4th top-10 for this time of year - 4 32°C Highs in-a-row, which ties the all-time record #yegwx #yeg
30ºC at 1PM makes that 5 in-a-row, when the old record for this time of year was only 3. 5 in-a-row is also the 3rd longest streak for any point of the year. July 2022 & 2021 both went 7 days, and June 1961 went 6. #yegwx #yeg
...we've had 4 new records Highs this summer (3 this week, and 1 back in May). 2021 & 2022 had 5, 2023 had 6, and 2024 had 9. For May-September, in the past 5 summers we've set 29 record Highs. That's new records for 20% of the days. public.tableau.com/shared/8XMW7...
...August 28th was 2025's 12th 30°C High. That's the 6th most on record. If we get to 13 that would tie for 4th. 14 would tie for 3rd. 15 would be all alone in 3rd, behind just 2024 & 2021. public.tableau.com/shared/Z45TG...
...3 32°C days in-a-row is also just 1 away from the longest streak at any point of the year. We got to 4 during the June 2021 heatdome, and in early-June 1961. public.tableau.com/shared/GFFWS...
...so far we've had 4 30°C days in-a-row, which is a new record for this late in the year. 2024, 2022 & 1967 all got to 3. And we've had 3 32°C days in-a-row, which is a new record for late-summer. 2022 & 1940 got to 2. public.tableau.com/shared/42KSF...
...the records for the next 3 days are all 32.2°C, and we may or may not get to those. But this week has already given us the 4th, 7th & 8th hottest temperatures ever recorded this late in the year. public.tableau.com/shared/87D8F...
August 28th's High of 32.8°C set a new record, ahead of 31.7°C from 1933. #yegwx #yeg That's 3 new records in a row. The Low of 14.2°C was also the 2nd hottest, behind 14.5°C in 2017. public.tableau.com/shared/3SNHQ...
...the longest streak of 32ºC days in-a-row that we've ever recorded is 4, during the June 2021 heat dome, and also in June 1961. Tomorrow's forecast is for another 32°C, so we might tie that on the edge of September.
So a High of at least 32.2ºC at 4PM gives us: - new August 28th record - 3 records in a row - 4 x 30ºC Highs in a row (new record for this late in the year) - 3 x 32ºC Highs in a row (new record for this late in the year) -another top-10 overall for this time of year #yegwx #yeg
...2025 now had 11 30°C Highs, which ties 2022, 1981, 1939, 1936 & 1922 for 6th most on record. If this heatwave keeps up 2025 could reach the #3 spot, behind 2024 & 2021. public.tableau.com/shared/4NC53...
...we've had 3 30°C Highs in-a-row, which ties the record for this late in the year. 2024, 2022 & 1967 also got there, but we've potentially got 3 more to go. And we've had 2 32°C Highs in-a-row, which ties the record from 2022 & 1940. public.tableau.com/shared/9C7CW...
...so we've got new records on the 26th & 27th, with potentially more on the way. And August 27th's 33.3°C was the 4th hottest day ever recorded this late in the year, while the 26th's is tied for 7th. public.tableau.com/shared/M9DMX...
August 27th's High of 33.3°C is a new daily record, ahead of 31.1°C from 1934. #yegwx #yeg The 3-day heatwave we've had so far is exceptional for this time of year. As we continue into days 4 (through 6?) we're moving into unprecedented territory... public.tableau.com/shared/DGYPK...
32.9°C at 4pm ties 1981 as the 5th hottest day ever recorded this late in the year.
32.2ºC at 2PM puts today in a 7-way tie for the 6th warmest day this late in the year.
...if we get to 32ºC today (which seems like a given at this point), that will be 2 in-a-row, which ties the record for this late in the year.
So 31.2°C at noon gives us: - a new record for August 27th. - 3x30°C highs in-a-row, which ties the record for this late in the year. -our 11th 30°C High of 2025, which ties for 6th most on record. And there are plenty of hours left for that temperature to keep climbing. #yegwx #yeg
Yeah, that shows up in the bars at the bottom of this one. bsky.app/profile/yegw...
...and the daily records for the rest of the week are all in range of what the forecasts are calling for. public.tableau.com/shared/HKG36...
...August 26th's 32.2°C is in a 6-way tie for the 6th hottest temperature ever recorded this late in the year. public.tableau.com/shared/3YT6H...
...another thing to watch for is just how many hot days in-a-row we end up with. Right now we've had 2 30°C days in-a-row. The record for this late in the year is 3, from 2024, 2022 & 1967. The forecasts have us possibly getting to 6 in-a-row? public.tableau.com/shared/6X33N...
...August 26th was our 10th 30°C High of the year, which ties 1970, 1967 & 1932 as the 11th most on record. As this heatwave continues we could climb up to the #3 spot, behind 2024 & 2021. public.tableau.com/shared/JW5PB...
August 26th's High of 32.2°C broke the old record of 32°C from 1981. #yegwx #yeg That's our 3rd new record High of the year, which is around average (2024 had 11 of them) The Low of 14°C was our 7th warmest. public.tableau.com/shared/9QBTF...
Yup. Seems unbelievable, but who knows?
A High of at least 32.2ºC at 4PM will make this a new record for August 26th, ahead of 32ºC in 1981. #yegwx #yeg
31.6ºC at 3PM, and inching towards the 32ºC record from 1981. #yegwx
By 1PM we'd gotten to 30.1ºC. With 10 x 30ºC Highs so far, 2025 ties 1970, 1967 & 1932 as the 11th most on record. We've still got plenty of warm hours today, so will we reach the August 26th record of 32ºC from 1981? #yegwx #yeg
...the record High for today (the 26th) is 32°C, and most of the records for the rest of this week are in a similar range. (the forecast is calling for a bunch of 33°C days, so anything might be possible) public.tableau.com/shared/9RCNS...
...August 25th was our 9th 30°C High of the year, which is the 14th most on record. Assuming that we really do get a few more this week (possibly 5?!?) that will push 2025 way up in the rankings, as well as possibly break some records for late-summer heatwaves. public.tableau.com/shared/D2R64...
Edmonton's August 25th High of 30.2°C was the 4th warmest on record, behind 30.4°C in 2022, and 30.6°C in 1966 & 1958. The Low of 12.3°C was 14th warmest. #yegwx public.tableau.com/shared/SFZQ6...
At 5PM we're at 30.2°C, which makes this the 9th 30°C High of 2025, and just a touch below August 25th's record of 30.4°C.
(realized that the last post was a bit of a brain fart. The warmest temperatures ever recorded around this time of year are all above 32°C. But the record daily Highs for the 25th, 27th & 28th are only 30.4°C, 31.1°C and 31.7°C respectively) public.tableau.com/shared/699CZ...
...the record daily Highs for this time of year are all still above 32°C. (although half of that top-10 have been set in the past 10 years) public.tableau.com/shared/T7MWW...
...so far 2025 has had 8 Highs reach 30°C. That's below the records of 17 from 2021 and 16 from 2024, but it is a lot compared to many years. If we were to get another 6(?!?) this week, that would push 2025 into a tie with 1961 for 3rd most on record. public.tableau.com/shared/MGZ5D...
...for strings of 30°C Highs in-a-row this late in the year, the record is 3. That's happened twice recently on Sep 6-8 2024 & Sep 2-4, 2022, and then once back on Aug 30-Sep1 1967. #yegwx public.tableau.com/shared/86D94...
By the final week of August we are out of Edmonton's peak season for 30°C Highs. That really stretches from mid-June through mid-August. #yegwx We still get 30°C days into late-September, but most dates have only gotten there a few times in the last 145 years... public.tableau.com/shared/ZS3BX...
(note to self: don't hyphenate things like "peak-30°C season" when talking about Edmonton)
...August 2nd is still right in the middle of our peak-30°C season. The likelihood of getting that hot really starts to drop off around August 20th. public.tableau.com/shared/HS8RH...
Prior to this lovely storm August 2nd gave Edmonton its 8th 30°C High of 2025. #yegwx It's not on the chart yet, but that's ahead of 2023's 7, but well behind 1st & 2nd place 2021's 17 & 2024's 16. 8 will put 2025 into a 7-way tie for 23rd most on record. public.tableau.com/app/profile/...
...and that brings us to the end of our look back at July 2025 weather in Edmonton. All of these charts are interactive dashboards with data for 17 Canadian cities, accessible at: edmontonweathernerdery.blogspot.com/2025/08/july...
...for August on average we have 25 Highs which reach 20°C, including ~10 above 25°C. About half of the time August hits 30°C. Most Lows are 10~15°C, but half of the time August will have a night below 5°C. And August is our 3rd rainiest month averaging 52mm. public.tableau.com/shared/4QPQN...
...across the country the biggest July storms were: Montréal with 81.6mm on the 13th Toronto with 48mm on the 20th Quebec City with a whole bunch (6) ~30mm days. public.tableau.com/shared/JMPR4...
...these are the precipitation totals across the country. Quebec City is at the top with 750mm, which is their 20th most on record. Calgary's 375mm is well ahead of Edmonton's 220mm, and is their 17th most. And Winnipeg's 126mm is another low year for them. public.tableau.com/shared/HWCG9...
...by the end of July we average around 290mm of precipitation for the year. The airport is right on average, and the other stations are down around 230mm. public.tableau.com/shared/G3NSN...
...the big difference was that the airport got a 20mm storm on the 6th, and 17mm storms on the 19th & 20th. Blatchford's biggest day was only 12.7mm on the 19th. public.tableau.com/shared/BW9CR...
...July is typically our rainiest month, averaging 90mm. In 2025 the airport got up to 102mm, while the other stations were below 40mm. public.tableau.com/shared/J2ZMT...
...for 30°C days so far this summer central Canada is a little above average, while Saskatoon & Regina are pretty low. public.tableau.com/shared/2X5QW...
...July 2025 was not warm in Edmonton, but it was actually cool in Calgary, Saskatoon & Regina, with Highs around 2°C below their 20th century averages. The rest of the country's Highs were around 2°C warmer than theirs. public.tableau.com/shared/QX53F...
...July 2025 was cooler than recent years, but still warmer than the 20th century average, so it gets another small orange bubble. The average High of 23.9°C was 0.6°C warmer than the 20th century average, and the Low of 12°C was 1°C warmer. public.tableau.com/shared/3G6T9...
...our range of July Lows is typically pretty narrow, between 5-20°C. 2025 had 8 cool Lows between 5-10°C, when the average is only 4. public.tableau.com/shared/7QF28...
...July's Lows were pretty chilly, with only 12 above-average and 19 below. And 4 of those were the coldest in at least 30 years. The 15th's 5.6°C and 23rd's 6.1°C were both bottom-10 Lows for those days. public.tableau.com/shared/Q62FG...
...July 31st was our 6th 30°C High of the year, so far. This is the 5th summer in-a-row (2021-2025) to get to 6 of them. That's only happened once before, in 1932-1936. public.tableau.com/shared/NB9GM...
...by the end of July we've had 62 20°C Highs. That's around average, and more than 2024, 2022, 2020, 2019. We've had 25 Highs reach 25°C - less than 2023, 2021 & 2018, but more than a lot of years. public.tableau.com/shared/5H5C7...
...July averages 12 25°C Highs, and 2025 had 12. And it averages 3 30°C Highs, and 2025 got 3. The coldest High was 16.3°C on the 21st, but 2023, 2022 & 2021 all had Highs below 15°C. public.tableau.com/shared/FSFN3...
...July started and ended hot, but was a little cool in the middle. We only had 13 Highs above the 30-year average, compared to 18 below. The hottest was 31.9°C on the 2nd & 8th. The coldest was 16.3°C, which was July 21st's 5th coldest High on record. public.tableau.com/shared/9BGH7...
The general consensus seems to be that July 2025 was pretty cool. The average High of 23.9°C was our 52nd warmest on record, and above 2023 & 2020. The average Low of 12°C was our 49th warmest, and the coldest since 2019. So it was cool, but not particularly cold. public.tableau.com/shared/3GNCB...
It's time for our big look back at July 2025 weather in Edmonton. Was it actually unseasonably cold and rainy, or did it just seem that way? Let's take a look... #yegwx edmontonweathernerdery.blogspot.com/2025/08/july...
July 31st is Edmonton's 6th 30°C of 2025. It's not showing up in the chart yet, but this is the 5th summer in-a-row (2021-2025) to get to 6 of them. That's only happened once before, in 1932-1936. #yegwx public.tableau.com/shared/X823K...
