Photo: Gordalmighty · CC BY-SA 3.0In Saint-Denis-de-Brompton, July heat, January cold and precipitation all sit near the middle of Canadian towns
A typical January night drops to −15.0°C and a July afternoon reaches 25.6°C; 1,015 mm of rain and snow falls in a year. Winter nights are cold: in January they are colder than in 71% of Canadian towns. The seasons are far apart: from a winter night to a summer afternoon the average spans 41°C. Frost comes on about 170 days a year, so leave time to clear the car.
Borrowed figures: Saint-Denis-de-Brompton has no normals station, so these come from Richmond, 20 km north.
A year in Saint-Denis-de-Brompton at a glance
Each month’s typical high and low, in °C.
What stands out about Saint-Denis-de-Brompton’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Saint-Denis-de-Brompton feels like
Each season’s and each month’s usual high and low, 1991–2020.
Frost on 170 days, 20°C on 114
Frost comes from September to May; in January almost every night freezes. On about 23 nights a year the air falls below −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 1,015 mm of rain and snow a year
The most falls in August, the least in February. About 147 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Precipitation: Lennoxville, 24 km away (Richmond records no complete year of it).
269 cm of snow in a typical year
Snow falls from October to April, most of all in December (about 65 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Saint-Denis-de-Brompton
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A heating degree day is one degree of shortfall below 18°C for one day, summed over the year.
Living with Saint-Denis-de-Brompton’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
Plan time outside for Jun, Jul, Aug and Sep: highs of 17–27°C and nights no colder than 8°C.
Parks & trails →A typical year is calm by definition; Saint-Denis-de-Brompton’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Richmond
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Richmond.
| Distance from the town | 20 km north |
| Station altitude | 123 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Lennoxville, 24 km |
| Coldest reading, 1991–2020 | −42.0°C |
| Hottest reading, 1991–2020 | 34.4°C |
| Next-nearest location | Lennoxville, 24 km |
How Saint-Denis-de-Brompton compares
Against the 2,611 Canadian towns and neighbourhoods of 2,500 or more, each read from its own normals location; the dots are the other locations those towns use in Quebec.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Saint-Denis-de-Brompton’s would only repeat its figures.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Saint-Denis-de-Brompton Richmond | 25.6°C | −15.0°C | 1,015 mm |
| Saint-François-Xavier-de-Brompton 9.8 km · Richmond | 25.6°C about the same | −15.0°C about the same | 1,015 mm |
| Orford 15 km · Lennoxville | 25.7°C about the same | −14.9°C about the same | 1,015 mm |
Saint-Denis-de-Brompton weather by month
Average daily high and low, mean temperature, rain and snow (as water) and snowfall by month, 1991–2020.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −4.7°C | −15.0°C | −10.0°C | 76 mm | 59 cm |
| February | −2.9°C | −14.3°C | −8.6°C | 66 mm | 58 cm |
| March | 2.6°C | −8.3°C | −2.9°C | 68 mm | 53 cm |
| April | 10.5°C | −0.7°C | 5.1°C | 82 mm | 14 cm |
| May | 18.8°C | 6.0°C | 12.4°C | 85 mm | 1 cm |
| June | 23.4°C | 11.3°C | 17.4°C | 102 mm | 0 cm |
| July | 25.6°C | 14.1°C | 19.5°C | 99 mm | 0 cm |
| August | 24.7°C | 13.1°C | 18.9°C | 104 mm | 0 cm |
| September | 20.4°C | 8.8°C | 14.6°C | 96 mm | 0 cm |
| October | 12.9°C | 3.0°C | 8.0°C | 91 mm | 1 cm |
| November | 5.7°C | −2.9°C | 1.6°C | 70 mm | 17 cm |
| December | −1.3°C | −9.8°C | −5.7°C | 75 mm | 65 cm |
| Year | 11.3°C | 0.4°C | 5.9°C | 1,015 mm | 269 cm |
In February, anything from −42.0°C to 17.2°C
Two years in three, January’s average falls within 3.3°C of its normal of −10.0°C; June keeps to within 1.0°C.
Where Saint-Denis-de-Brompton’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Richmond from ECCC’s climate data site, the nearest location with every month of temperature.
- Other locations: ECCC blanks a month that fails its completeness rule, so the precipitation or snowfall here comes from the next location with all twelve months.
- Comparisons: every place of 2,500+ in Canada but the city hubs and the reserves, each on its nearest ECCC location.
- Not on this page: sunshine, which none of ECCC’s 450 locations publishes for 1991–2020, and the town’s own height above sea level, so no figure is adjusted for altitude.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Saint-Denis-de-Brompton’s climate
How warm does Saint-Denis-de-Brompton get in summer?
Of all twelve months, July has the warmest afternoons, about 25.6°C.
How cold does Saint-Denis-de-Brompton get in winter?
At its coldest, in January, the normal low is −15.0°C.
How much rain and snow does Saint-Denis-de-Brompton get?
Precipitation totals 1,015 mm a year, with August the wettest month (104 mm) and February the driest (66 mm).
Are these figures for Saint-Denis-de-Brompton itself?
They come from Richmond, which ECCC uses as the nearest normals location for Saint-Denis-de-Brompton.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Saint-Denis-de-Brompton →
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).