It's time for our giant look back at Edmonton's September 2022 weather.
September 2022's average High of 21.9°C ranked as 5th warmest since 1880. 1938 has the record with 24°C.
The average Low of 9.2°C was the 1st warmest, ahead of 8.9°C from 1967.
Our warm September follows an August with the #2 warmest Highs and #1 warmest Lows; and a July with #27 warmest Highs (not too impressive) and #3 warmest Lows.
High Temperatures
September started really hot, with 3 new record Highs. It got a little cool around the middle of the month, and was well above average at the end.
It ends with 7 Highs below average, and 23 above.
In September we average about 11 Highs of 20°C, and 2022 had 23. In recent years 2009 was closest to that with 20.
We had 9 25°C days, when the average is 3.
And we had 3 Highs reach 30°C, which also happened in 2009.
We talked more about the September heatwave here:
Notably:
- records Highs on September 2, 3 & 4.
- #2, #8 & #10 warmest September days on record
- 3 30°C days in-a-row, which hadn't happened in September.
Warm Days So Far
For the summer so far we have had 49 days reach 25°C, which ties for 11th most.
At the end of June we only had 2 (which was a bottom 10 year), but then from July 1st-September 31st we had 47 (#1 for that period).
For 20°C Highs so far we've had 107, which ties for 14th most.
Recently 2017 reached 111, and 1897 & 1898 are tied for the record with 122.
Low Temperatures
For September 2022's Lows only 6 were below average, compared to 24 above.
We set new records on September 26th & 27th.
September averages about 10 Lows below 5°C, and 2022 had 2.
September also gets frost about half of the time, but 2022 escaped it (along with 2021, 2020, 2017, 2016...)
Frost-Free Days
The first frost at the Airport was September 20th, and at Campsie it was the 10th. Both of those were a few days later than their average.
Blatchford & Stony Plain haven't had theirs yet, but the average dates are September 27th & 23rd.
Warm & Cold Months
September 2022's average High of 21.9°C ends up 5°C above the 20th century average.
The average Low of 9.2°C was 4.8°C warmer.
They're both big orange bubbles, following a very warm August, and a fairly warm July.
The Horserace
With 3 months left in the year, so far 2022 has moved up to Edmonton's 12th warmest year overall, and 1.7°C above the 20th century average.
The Highs are the 18th warmest, and the Lows are the 8th.
The red line really turned upwards at the start of August, and just kept going.
Across Canada
For September Highs across the country Edmonton & Saskatoon were the most above-average.
Winnipeg finally gets a genuinely above-average month, for the first time since last November.
For the Lows Edmonton & Calgary were the most above-average.
Precipitation
September averages 35mm of precipition.
September 2022 was low, with 15mm at the airport, 13mm at Blatchford, and only 7mm at the airport.
September averages 10 days with precipitation.
In 2022 somehow Blatchford was way up at 13 days, while the airport and Stony Plain were down at only 5 days.
By the end of September we average around 380mm of precipitation for the year.
The airport is right on that with 382mm, while Stony Plain is a little high with 427mm and Blatchford is a little low with 340mm.
Precipitation Across Canada
This messy chart has 2022's precipitation for 11 cities.
Saskatoon & Regina are at the bottom.
Next, Edmonton & Calgary are almost tied around 340mm.
At the top Halifax is over 1000mm, and St. John's is over 1300mm.
For the big storms in September:
- St. John's had 80mm on the 11th, 46mm on the 12th & 45mm on the 10th (171mm over 3 days!)
- Halifax got 65mm on the 23rd
- Montréal had 36mm on the 19th.
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.
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