Photo: Guillaume Hébert-Jodoin · CC BY 3.0A flood study covers Rougemont: 1 on the national inventory, the newest from Gouvernement du Québec
Burn scars are few around Rougemont, with 0% of the land within 25 km touched by fire since 1986 (0.001% a year). Shaking is a bigger worry than in most places, at $0.11 a year per $1,000 of building value ($0.030 typical). Radon is about average around Rougemont: 8.2% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Rougemont grades C for hazard risk; wildfire is low here, so it earns no credit.
What stands out about Rougemont’s hazards
For Rougemont, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Rougemont faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Rougemont: C
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Rougemont with little fire nearby would get no credit for it.
Its place: #131 of 507 in Quebec and #2,066 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Rougemont: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Rougemont’s residents live, and the fuel next to their homes.
Forty years of fire maps put Rougemont at 0.001% a year, low next to the typical Canadian town’s 0.000%.
Land that isn’t forest covers nearly all the ground around Rougemont: forest fuel is 0.1% within 5 km and 1% within 25 km.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Quebec · highest of 513
Rougemont sits mid-table in Quebec: 136th of 513 towns, at 0.001% a year, well behind Mistissini (0.31%).
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Some fire is mapped around Rougemont, but not enough to leave the low band, where 92% of Canada’s 2,610 towns are; 7.5% rank higher.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
Rougemont is on the flood map inventory: 1 study, by Gouvernement du Québec
Flood studies whose area touches Rougemont, from NRCan’s inventory, each linked to its owner.
The flood study touching Rougemont is Gouvernement du Québec’s, dated 1983; its own map shows the zones street by street.
| Study | By | Year | Status |
|---|---|---|---|
| Yamaska-St-Hyacinthe-St-césaire | Gouvernement du Québec | 1983 | final |
Towns with a flood study on file
Rougemont is one of the 45% of towns in Quebec with a flood study on file, fewer than Canada’s 58%.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood is shown here, never graded: a study says where a map exists, not how many of Rougemont’s homes stand in a flood zone.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Shaking is Rougemont’s costliest hazard: $0.11 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
At $0.11 per $1,000, Rougemont carries roughly 3.6 times the typical Canadian town’s earthquake risk ($0.030).
Shaking damage a year per $1,000 of building value
Below the middle in Quebec: Rougemont’s $0.11 against a median of $0.14; La Pocatière has $0.48.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Rougemont sits above most of Canada’s 2,611 towns on earthquake risk; 25% are higher.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
What a quake does after the shaking, fire, landslides, tsunami, falls outside NRCan’s figure for Rougemont.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Some radon around Rougemont: 8.2% of area homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline. · The radon tests numbers here cover the Monteregie health region
Near the middle for radon: Rougemont’s area 8.2%, the typical Canadian town 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Around Rougemont, 8.2% of tests topped the guideline, about the same as the typical town in Quebec (8.2%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Rougemont is in the 5–10% band with 37% of Canada’s 2,611 towns; 26% have more.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
A low area share in Rougemont doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Rougemont
Environment and Climate Change Canada issues the weather alerts for Rougemont; Alert Ready carries the urgent ones to phones, radio and TV.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Smoke and fire warnings for Rougemont come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Rougemont’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Rougemont | Low | $0.11 | 8.2% | Yes |
| Saint-Césaire 6,150 · 4.7 km | Low | $0.13 | 8.2% | Yes |
| Sainte-Angèle-de-Monnoir 1,862 · 5.7 km | Low | $0.14 | 8.2% | None listed |
| Saint-Damase 2,390 · 9.1 km | Low | $0.12 | 8.2% | Yes |
| Marieville 11,910 · 9.2 km | Low | $0.16 | 8.2% | None listed |
| Saint-Jean-Baptiste 3,332 · 9.9 km | Low | $0.12 | 8.2% | None listed |
| Saint-Paul-d'Abbotsford 2,891 · 13 km | Low | $0.096 | 8.2% | Yes |
The fire record around Saint-Jean-Baptiste is a touch heavier than Rougemont’s, but the band is the same: low (here low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Rougemont faces
What to do about the hazards Rougemont faces, and what to ask before you buy.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Drop, cover and hold on.
- Strap the water heater down.
- Keep 72 hours of supplies.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Rougemont’s included.
- Radon is a survey. The radon share comes from about 14,000 long-term home tests in 2009–2011, pooled for now by the 2007 health region Rougemont sits in.
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Rougemont.
- Flood studies aren’t flood zones. A study’s area can be a whole watershed or province, so being on the inventory says a map exists, not that a home in Rougemont floods.
Questions about flooding and hazards in Rougemont
How big is the earthquake risk in Rougemont?
About $0.11 a year per $1,000 of building value, NRCan’s long-run expectation for Rougemont.
Does Rougemont flood?
Rougemont’s area has been studied for flooding, and the owner’s map shows which streets lie in a zone; the grade leaves flood out.
Is Rougemont at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Rougemont has burned since 1986, the last in 2025, a low band that leaves Risk alone.
How is Rougemont’s Hazard risk Grade worked out?
Hazard risk gives Rougemont C, weighing earthquakes and radon and counting wildfire only against it.
Is radon a problem in Rougemont?
In Health Canada’s survey, 8.2% of 110 homes tested in Rougemont’s area were above 200 Bq/m³, though only a test tells you about one house.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).