September was dry with tornadic activity bringing one really wet day
Posted Oct 2, 2026 08:53:13 AM.
There was one really wet and stormy day in Waterloo Region this past September, and you can probably guess what day it was.
The E.D. Soulis Memorial Weather Station at the University of Waterloo is out with its monthly weather recap, and that one day in early September not only brought a significant amount of rain, but also a tornado to Waterloo Region.
On Wednesday, Sept. 2, 55.0 mm of rain fell across Waterloo Region with tornado alerts and dangerous wind warnings pinging phones across the region.
Just over a week following the storm, the Northern Tornadoes Project confirmed four tornadoes (3 EF1, 1 EF0) and three downbursts (2 EF1, 1 EF0) in southwestern Ontario.
That included a twister in Wellesley Township as well as in Monkton outside of Stratford and around Tavistock.
For the rest of September, only 4.2 mm of rain fell, making it a below average month for precipitation.
“I don’t know if there has ever been one day that has accounted for so much of a month’s total precipitation,” said Weather Station Coordinator Frank Seglenieks.
The total precipitation count for 2026 however, is still well above the average of 683.5 mm, with 799.9 mm recorded since Jan. 1.
Temperature wise it was an above average month, with one cool week. It got as hot as 30.4°C and as cool as 1.7°C.
The full monthly recap from the weather station can be read here.
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