WHICH STORMHIT YOUR ROOF?
Every major Calgary hailstorm from 2020 onward: the date, the time, the areas hit and what insurers paid out. If you're filing a claim, the date of loss is the first thing you'll be asked for.
- STORMS5
- SINCE2020
- CHECKEDOCTOBER 11, 2026
FIVE STORMS.DIFFERENT PARTSOF THE CITY.
Where you live decides which storm damaged your roof. The 2020 storm hit the northeast, 2021 the south, 2023 the south centre, and 2024 (the costliest hailstorm in Canadian history) the north.
- $164 million
First reported at close to $92 million in August 2025.
A smaller event than the ones below it, and heavily weighted to vehicles: IBC reported that vehicle damage made up more than half of all claims. Roof damage from a storm this size tends to be patchy and street-by-street rather than city-wide, which is exactly the situation where an inspection is worth more than a guess from the ground.
- $3.35 billionmore than 130,000
First reported at nearly $2.8 billion, then $3.25 billion in February 2025 and $3.29 billion in August 2025, before CatIQ's final estimate of $3.349 billion in August 2026.
The costliest hailstorm in Canadian history and the second-costliest insured disaster the country has ever had. CatIQ recorded hail punching through vinyl siding, breaking windows, and severely damaging roofs, with Calgary International Airport among the damaged properties. If your roof is in north Calgary and you have never had it looked at since, this is almost certainly your date of loss.
- CatIQ, August 2026: Final industry loss estimate for the 2024 Calgary hailstorm
- CatIQ, August 2025: Updated industry loss for the Calgary hailstorm of August 5, 2024
- IBC, September 2024: August hailstorm in Calgary results in nearly $2.8 billion in insured damage
- IBC, February 2025: Cost of historic Calgary hailstorm continues to rise
- Environment Canada: 10 most impactful weather stories of 2024
- Western University, Northern Hail Project, August 2024
- CBC News, August 6, 2024: Hailstorm aftermath at the Calgary airport
- over $110 million
A south-central Calgary storm that broke part of the ceiling at Chinook Centre and caused over $110 million in insured damage, per IBC. Residents reported golf-ball hail in Riverbend and Marda Loop.
- over $600 million39,000 by December 2021
Initially estimated by CatIQ at $247 million in August 2021.
Hail plus serious flooding. Streets, underpasses and parking lots went under. The estimate for this storm more than doubled from the first figure published, which is the clearest example on this page of why an early loss number should never be treated as the final one.
- IBC, September 2022: Summer storms across Western Canada result in over $300 million in insured damage
- Environment Canada: Top ten weather stories of 2021
- IBC via Cision, August 2021: Calgary hailstorm causes $247 million in insured damage
- CatIQ, August 2025: Where the 2020, 2021 and 2024 storms hit
- Global News, July 2, 2021: Calgary storm
- CBC News, July 2, 2021: Severe thunderstorm hits Calgary
- over $1.3 billionapproximately 70,000
First reported by IBC at almost $1.2 billion in July 2020.
Held the record as Canada's costliest hailstorm until August 2024 broke it, and ranked as the country's fourth-costliest natural disaster at the time. Note the area: this one hit the northeast, while 2021 hit the south and 2024 hit the north. Which storm damaged your roof depends heavily on where in the city you live.
- IBC, August 2024: Insurers ready to help following destructive hailstorm in Alberta
- IBC, July 2020: Insurers to pay a record $1.2 billion to Albertans recovering from Calgary hailstorm
- Environment Canada: Top ten weather stories of 2020
- CBC News, June 13, 2020: Thunderstorm hits Calgary
- CBC News, July 8, 2020: Calgary hailstorm damage
Figures last checked against their sources on October 11, 2026. Insured-loss estimates are published by third parties and are revised after an event, sometimes for years. Treat every number here as an estimate, not a final figure.
FIRST ESTIMATE
IS NEVER
THE LAST ONE.
Every storm on this page with a revised estimate cost more than first announced.
- July 13, 2025: First reported at close to $92 million in August 2025. Latest: $164 million (September 2025).
- August 5, 2024: First reported at nearly $2.8 billion, then $3.25 billion in February 2025 and $3.29 billion in August 2025, before CatIQ's final estimate of $3.349 billion in August 2026. Latest: $3.35 billion (August 2026).
- July 2, 2021: Initially estimated by CatIQ at $247 million in August 2021. Latest: over $600 million (September 2022).
- June 13, 2020: First reported by IBC at almost $1.2 billion in July 2020. Latest: over $1.3 billion (August 2024).
The practical version for a homeowner: hail damage that nobody noticed at the time is normal, not suspicious. A roof can be bruised and still look fine from the street for years, which is why damage from an old storm is still being found today.
“Insured damage from hailstorms in Alberta over the past five years now stands at $6 billion.”
Source: IBC, August 2025YOU'VE GOT A DATE.
NOW WHAT?
Don't sit on it
Alberta home policies require prompt notice of a loss. The longer you wait, the harder it gets to tie damage to a specific storm instead of plain wear. Check your own policy for any other time limits.
Check your deductible first
Hail deductibles in Alberta have gone up: many carriers now set them at $2,500 to $5,000, and higher for homes without a hail-resistant roof. It's on your declarations page. Know the number before you file.
Get the roof looked at
Hail bruising is hard to confirm from the ground. We photograph every slope and write it up against the storm date, so the damage is tied to the day it happened.
WAS YOUR ROOFIN ONE OF THESE?
Tell us the storm date and your address. We'll document what's actually on the roof.