2025/06/30

June 2025 Review

It's time for our big look back at June 2025 weather in Edmonton. It was a pretty unremarkable month, although sometimes that's not a bad thing...

June 2025's average High of 21.6°C was our 46th warmest June on record, and the average Low of 10°C was our 36th warmest. Those are both below the recent averages of 22.2°C and 11.1°C.





High Temperatures
June 2025 had 18 above-average Highs and 12 below-average. But they were all comfortably within our typical range, and nothing was particularly hot or cold.

June 2025 didn't get to 30°C, but the only recent Junes to get there were 2023 & 2021, and before that 2015.

June averages 5 25°C Highs, and 2025 had 6. It averages 18 20°C Highs, and 2025 got to 20.

And it averages 2 Highs below 15°C, and 2025 had 1, with 14.5°C on the 23rd.





Hot Days
By the end of June we average 35 20°C Highs, and 2025 is just a bit above that with 38.

Our recent average for 25°C Highs is around 11 (although the range is from 2 in 2022 to 26 in 2023), and 2025 has 13 so far.



Low Temperatures
June 2025 had 15 above-average Lows, and 15 below-average. None of the warm Lows were particularly warm, but June 22nd's 3.1°C and June 24th's 3.4°C were the coldest in 30 years.

On average June gets 1 Low below 5°C, and 2025 had 2. June also averages 2 Lows above 15°C, and 2025 had 1, with June 30th's 15.3°C.



Warm & Cold Months
June 2025 was cooler than recent years, but still warmer than the 20th century average, so it gets a small orange bubble here.

The average High of 21.5°C was 0.8°C warmer than the 20th century average, and the Low of 10°C was 1.3°C warmer.



Across Canada
Across the country the Highs for March through June have all been warmer than the 20th century average for all of these Stations. 

For June St. John's was the most above-average, at 4.9°C above their average, followed by Kelowna at 2.7°C above theirs.



The Horserace
6 months into 2025, and so far it's a pretty warm year.

Overall it's Edmonton's 16th warmest year on record, at 1.3°C warmer than the 20th century average. The Highs are 21st warmest, and Lowest are 17th warmest.

Across the country January-June 2025 is Dawson City's 6th warmest and St. John's 7th warmest. Quebec City is at the bottom, with 2025 as its 68th warmest January-June.



Precipitation
In June we average 77mm of precipitation, and 2025 was pretty average. The airport got 82mm, Blatchford got 72mm, and Stony Plain got 64mm.

By the end of June we average around 203mm of precipitation for the year. In 2025 Blatchford is a little low with 183mm, the Airport has had 187mm, and Stony Plain had had 189mm.

These are the precipitation totals for 2025 so far across the country. 

St. John's and Quebec city are at the top around 540mm. All of the prairie cities, along with Victoria, are below 200mm.



Big Storms
Around Edmonton June's biggest storms were: 
  • Campsie 17.1mm on June 14st
  • Blatchford 17.8mm on June 14th 
  • Stony Plain 29.4mm on June 19th 
  • The Airport 32.9mm on June 19th

Across the country the biggest June storms were: 
  • Charlottetown 53mm on June 7th 
  • Calgary 48mm on June 21st 
  • Moncton 32mm on June 7 
  • Quebec City had 3 ~30mm storms.



July
For July, the average High is about 23.5°C. It has around 25 days reach 20°C, including about 10 at 25°C. 

 Most July's will get at least one 30°C day, but recently 2020, 2019 and 2016 didn't.

July is also usually our rainiest month, with an average of 90mm.

2025/06/01

May 2025 Review

May 2025 ended on a hot note, so let's take a look back at Edmonton weather for the month.

May 2025 was pretty warm, but not as extreme as 2023 (#1) or 2018 (#2). 

The average High of 20.5°C was the 9th warmest on record, and average Low of 7.6°C was 5th warmest.





High Temperatures
May 2025 had 23 above-average Highs, and 8 below-average. It started and ended really warm, with a bit of a cool down in the middle. 

May 29th's 32.7°C set a daily record, and was the 3rd hottest May High on record. 

The coldest High was 11.1°C on the 21st.

May averages 10 20°C Highs, and in 2025 we got 16. 

We average 3 25°C days, and got 7. 

And we got 3 30°C days, which is the most since 1986's 4. 

May also averages 3 Highs below 10°C, and 2025 had none.





Hot Days
By the end of May we average 15 20°C Highs. 2025 is a bit above that with 18, but well below 2023's 25 & 2018's 27. 

Our 3 30°C Highs are the 4th most on record, behind 1986, 1936 & 1928 which all got to 4. Recently 2023 & 1995 had 2 by this point.





Records
May 29th's High of 32.7°C was our second daily record of 2025, following February 22nd's 12.5°C. 

A typical year might set around 3 new records Highs. But recently 2021 & 2022 had 5, 2023 had 6, and 2024 had 11.

May 29th's 32.7°C was our 3rd hottest May temperature on record. It was our earliest 32°C day since 1986. Between 1986 & 2025 the earliest that we'd gotten to 32°C was almost a month later, on June 26th in 2002 & 2021.



Low Temperatures
May 2025 had 25 above-average Lows, and only 6 which were below average. 

But one of those snuck in as a relatively late frost at -0.8°C on May 16th.

In May we average around 2 below-freezing Lows, although a lot of years don't have any (2022-2024, 2020, 2017-2018, 2011-2013, etc). The final frost on May 16 was fairly late. But 2025 also had a Low above 15°C, with 18°C on May 29th.



Final Spring Frost
Blatchford's average date for final spring frost is May 5th. It seemed like 2025 would be early like 2020 (April 19th), 2023 (April 22nd) & 2024 (April 20). 

But then May 16th gave us another one. So 2025 is a pretty late year like 2021 (May 21st) & 2015 (May 17th).

Stony Plain missed the May 16th frost, so their final frost was April 28th. At the airport and Campsie their last frost was May 16th, so they might be done for the year, but June frosts aren't impossible there.



Warm & Cold Months
May 2025 gets a medium sized orange bubble. 

The average High of 20.5°C was 3°C warmer than the 20th century average. The average Low of 7.6°C was 2.9°C warmer.

The last time that we had a warm March-April-May like this was maybe 2016, or maybe even 2001.



Across Canada
Across the country March-April-May have been mostly above-average. 

For May the 2 exceptions were Dawson City & Quebec City with Highs -0.5°C cooler than their 20th century average. 

Winnipeg was the most above-average, at 4.8°C above their 20th century average.

Somewhat unusually, Edmonton final frost on May 16th was later than most of the prairie cities. Calgary's final frost on April 28th was their 2nd earliest on record, just behind 2023's April 26th.



Snow
In May we average 6cm of snowfall. 

In 2025 we got 0cm, following 0cm in April. 

The Airport has only gone snowless in April-May in 1998, and now 2025. When Blatchford recorded snow it had a snowless April-May in 2005, 1998, 1988, 1949 & 1905.

By the end of the winter Edmonton averages 120cm of total snowfall. 

 After the snowfree April-May the winter of 2024-2025 was a little low at 105cm. 

But recently we've had lower winters, like 77cm in 2023-2024, 75cm in 2022-2023, and 53cm in 2015-2016.

At the end of the winter Charlottetown takes the top spot with 450cm of snow, which is a little below average. St. John's was the only city here with snow in May, adding 3cm to reach 251cm. Calgary was the biggest outlier, with 83.5cm as a bottom-10 year.



Precipitation
May is normally when our summer storm season kicks off, and we definitely got some this year, but not a lot. We average 49mm of precipitation. Stony Plain got close with 44mm, but the airport had 31mm and Blatchford had 26mm. Campsie (100km NW) was up at 77mm.

May averages 11 days with precipitation. Even with the low rainfall Blatchford and the airport both had 12 days, Stony Plain had 10, and Campsie way up at 17 days.

By the end of May we average around 125mm of precipitation for the year.

By the end of May we average around 125mm of precipitation for the year.
Blatchford and the airport are a little low, with 111mm & 106mm.

These are the precipitation totals for 2025 so far across the country.

Edmonton and the prairie cities are all down around 100mm, while St. John's & Halifax are heading towards 500mm (which is below average for both of them).



Big Storms
Around Edmonton May's biggest storms were: 
  • Blatchford 7.9mm on May 26th
  • Stony Plain 11.8mm on May 20th 
  • Airport 15mm on May 20th 
  • Campsie 28.9mm on May 21st

Across the country the biggest May storms were: 
  • Charlottetown 28.8mm on May 23rd 
  • Halifax 23.9mm on May 7th 
  • Quebec City 23.3mm on May 18th 
  • Winnipeg 21.7mm on May 15th



June
In June usually about half of the Highs are above 20°C, with maybe a week above 25°C. The last time that Blatchford had a June frost was 1942. But we've had snow in June in 2011, 1967, 1922 and 1888.

2025/04/30

April 2025 Review

Suddenly it's May, so it's time for our big look back at April 2025 weather in Edmonton.

April 2025 ends up as a pretty warm one. 

The average High of 13.3°C was the 30th warmest on record, and average Low of 1.3°C was 15th warmest. 

That made it our warmest April since 2016.

April is one of the months, along with October, where our average Highs haven't changed much over the past century. Both have stayed a little below 11°C going back to 1880. The Lows for both have increased by around 2.5°C, though.





High Temperatures
April 2025 had 22 above-average Highs, and 8 below-average. The 6th & 26th got near the top of our 30-year range, although they weren't close to any all-time records. And none of the below-average Highs were particularly cold.

April averages 2 below-freezing Highs, and 2025 didn't have any. The last April that did get some was 2022, with 5. 

April also averages 3 20°C Highs, and this year we got 2 (although 2024 had none).

20°C Highs often start to show up around mid-April. The first one of 2025 was April 26th. 

Before that our last one was back on October 8th. So we went 198 days below 20°C, which is fairly typical. 

Recently 2022 went just 173 days, while 2017 went 218.



Low Temperatures
April 2025's Lows looked a lot like the Highs, with 20 above-average and 10 below-below average. A few days were up at the top of our 30-year range, and the below-average Lows weren't particularly cold.

April averages around 15 below-freezing Lows, and 2025 had 9. The coldest was -7.4°C on the 4th. 

April average 2 Lows above 5°C, and 2025 had 7.



Final Spring Frost
The average date of the final spring frost at Blatchford is May 4th. 

Right now the last frost was on April 18th, although there's still plenty of time for the weather to turn again. 

But 2024's final frost was April 20th, 2023's was the 22nd, and 2020's was the 19th.



Warm & Cold Months
April 2025 gets a medium sized orange bubble. The average High of 13.3°C was 2.7°C warmer than the 20th century average. The average Low of 1.3°C was also 2.7°C warmer. And it was the warmest April since 2016.



Across Canada
April follows March as another warm month across the whole country. Dawson City was the most above average with a High 3.2°C above its 20th century average, and Edmonton's 2.7°C was second.



Snow
In April we average 14cm of snowfall. In 2025 we got...0cm! 

The airport has only had 1 other snowless April, back in 1998.

When Blatchford still recorded snow it was snowfree in 2005, 1998, 1984, 1949, 1919, 1906 & 1905 (and 6 more before 1900, which seems suspect)

Quite a few other cities did get snow in April. Charlottetown was up at 43cm, Halifax had 43cm, and Calgary got 11cm.

By the end of April Edmonton averages 114cm of total snowfall. After the snowfree April the winter of 2024-2025 is stuck at 105cm. But in May we get more snow about half of the time.

At the end of the winter Charelottetown takes the top spot with 450cm of snow, well ahead of Ottawa, St. John's and Moncton around 250cm. 

Calgary was the biggest outlier here, as its 83.5cm was a bottom-10 year.



Snowdepth
The airport's last day with snow on the ground was April 4th. Stony Plain's was the 6th. Elk Island's was basically the 10th, although it bounced around a bit. Campsie was at 1cm on the 8th, but then also bounced around.

The airport has snow on the ground from November 22nd to April 4th. That's 133 days in-a-row, which is fairly typical. For Stony Plain it was 99 days (it originally got to 0cm in March), and Elk Island was 138 days.



Precipitation
In April we average 27mm of combined precipitation (rain+snow). 

2025 was low, with 4.9mm at Blatchford, and 12.8mm at the airport and Stony Plain. Campise (100km NW) was right on average. 

Blatchford's 4.9mm was still more than April 2019, 2020 or 2021.

By the end of April we average around 75mm of precipitation for the year. 

Right now the stations range from 75mm at the airport to 85mm at Blatchford. 

Things usually pick up from mid-May through mid-August, with about 60% of our total precipitation for the year.

While Edmonton has had 75mm of precipitation so far in 2025, and Calgary is at 51mm, at the other end St. John's is up at 443mm, Halifax has 385mm, and Vancouver has 351mm.



May
For May we average a week or two of days above 20°C, and quite often we will reach 30°C. 

About a third of the time our final frost is in April, but May often has a few of frosty nights. 

And the airport recorded May snow in 2022, 2021, 2020, 2019, 2015...