Calgary hail storm history: every major storm since 2010
If you're filing a claim, the first thing your insurer asks for is the date of loss. This page lists the major hailstorms that have hit Calgary and nearby towns, which areas were reported, how big the hail was, and what insurers paid, with a source for every figure.
By [OWNER / LEAD ESTIMATOR NAME] · Last updated
Book a free hail inspectionMajor storms at a glance
| Date | Areas reported | Hail size | Insured loss | Claims | Sources |
|---|---|---|---|---|---|
| Storm details | Crossfield–Airdrie corridor, Madden, Rocky View County; edges of north and west Calgary | Quarter-size (warning) | Not published | – | Culture Alberta |
| Storm details | North Calgary, just south of the 2024 storm path | Toonie-size | $164 million | – | Canadian Underwriter, Insurance Business |
| Northern Calgary (NW incl. Evanston, Sage Hill; NE incl. Redstone), Calgary airport, Cochrane, Strathmore, Lyalta | Golf ball to hen egg; baseball-size in places | $3.35 billion (CatIQ final) | 130,000+ | Insurance Portal (CatIQ final), IBC via Insurance Journal, Daily Hive (hail sizes) | |
| Calgary, mainly the south; widespread flash flooding | Not stated | $600 million+ (revised) | – | IBC via Newswire, Beinsure (CatIQ on areas) | |
| Northeast Calgary (Saddle Ridge, Taradale, Skyview Ranch, Redstone), Airdrie, Rocky View County | Up to tennis-ball size | $1.2 billion (IBC initial) | 70,000+ | CTV News, Canadian Underwriter | |
| Series of storms across Hailstorm Alley incl. Calgary, Airdrie, Red Deer | Varied | ~$450 million | – | Wikipedia: Hailstorm Alley | |
| Calgary | About 4 cm | ~$400 million | – | Wikipedia: Hailstorm Alley |
Insured losses are industry estimates from CatIQ, published by the Insurance Bureau of Canada, and are often revised upward for months after a storm. Figures are in Canadian dollars, not adjusted for inflation.
Insured losses by storm
- July 12, 2010$400M
- August 2014$450M
- June 13, 2020$1.20B
- July 2, 2021$600M
- August 5, 2024$3.35B
- July 13, 2025$164M
What the record shows
Every part of the city has been hit. The 2020 storm hammered the northeast. The 2021 storm mostly hit the south. The 2024 storm crossed the north from Evanston and Sage Hill to the northeast and the airport, then went on to Strathmore. In 2025, a storm tracked just south of the 2024 path. No quadrant has been spared.
The season is short and predictable. Every storm on this list fell between mid-June and mid-August, when afternoon heat builds storms over the foothills that drift east across the city.
Losses are climbing. The Insurance Bureau of Canada says Alberta has had at least one major hailstorm every year for two decades, with about $6 billion of hail damage in the five years to 2025 alone. Part of that is more homes and higher repair costs; part is more frequent large storms.
The same homes get hit twice. Many northeast Calgary roofs were replaced after 2020 and again after 2024. That repeat exposure is why so many homeowners now choose Class 4 impact-resistant roofing when they replace.
How to find your date of loss
- Check the table for storms that covered your community.
- Look at your own photos: phone pictures of hail, damaged cars or yards are time-stamped.
- Check old Environment Canada alerts on your phone or local news for your area.
- If more than one storm could apply, tell your insurer and let the inspection evidence guide it. A roofer can often tell older, weathered hits from fresh ones.
Then read how to file a hail damage claim in Alberta, or book a free hail roof inspection.
Using this page
Journalists, community associations and insurance brokers are welcome to link to or cite this page. If you know of a significant Calgary-area storm we have missed, or a revised loss figure, let us know and include a source.
Not sure if hail damaged your roof?
Book a free inspection. You get photos of every finding and a straight answer on whether a claim makes sense, before you call your insurer.