Are you ready for our 2021 Year-in-Review Part 3: Precipitation!
We will take a look at Edmonton, and some other cities across Canada.
Our epic 2021 Year-in-Review has 4 Parts:
Each year Edmonton averages about 438mm of combined precipitation (rain + snow).
In 2021 the International recorded 362mm, Stony Plain had 328mm, and Blatchford had 266mm.
For Blatchford that is a bottom-5 year, going back to 1880. Although recently both 2020 and 2019 were above-average.
There are quite a few stations around Edmonton, and here we have the totals for all of them.
The airport's 361mm was an outlier compared to the others. St. Albert had 326mm, and the rest were between 247-292mm.
So it was a dry year all around the city.
On a monthly basis May and December were well above average, while March, April, June and July were very low.
June and July average 161mm, while in 2021 Blatchford had 45mm and Stony Plain had 47mm.
Big Storms
Our peak rain season is mid-May through mid-August, usually with lots of summer storms.
But even at the International, which was the station with the most rain, there was very little going on this summer.
For large~ish 10mm storms Blatchford recorded 6, and the International had 8.
The average is around 12, and in 2020 there were 16.
For large 20mm storms Blacthord had 3 and the International had 3, compared to an average of about 4.
Blatchford's largest storm was 29.7mm on May 18th. That was also the International's, but with 40.8mm.
Precipitation Across Canada
For cities across Canada the total precipitation ranged from Edmonton down at 266mm, up to St. John's at 1468mm.
Calgary, Regina and Winnipeg were all around 350-375mm. Toronto, Ottawa and Montréal were around 800mm. And Vancouver was up over 1100mm.
The total year precipitation is pretty close to the average for cities like St. John's, Vancouver, Toronto and Regina.
The total year precipitation was below average for Montréal, Ottawa, Calgary, and Winnipeg.
(and Edmonton was way below average).
Big Storms Across Canada
These festive-looking charts show the biggest storms of the year.
Winnipeg recorded the biggest single day, with 65.7mm on August 20th.
Regina recorded 54.8mm on June 11th, and Toronto had 56mm on September 22nd.
As usual, St. John's is the winner for most big storms, with 5 40mm+ days. That included 50mm on September 19th.
Vancounver had 4 40mm+ days, including 50.9mm on September 17th.
There are quite a few stations around Edmonton, and here we have the totals for all of them. 
On a monthly basis May and December were well above average, while March, April, June and July were very low.
June and July average 161mm, while in 2021 Blatchford had 45mm and Stony Plain had 47mm.
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