Winter nights in Des Vallées are colder than in 78% of Canadian towns
Peak summer warmth arrives in July, with afternoons near 26.2°C. Its July heat outdoes that of 62% of Canadian towns. Some 43°C separates winter nights from summer afternoons. Have the furnace checked before October to April, the months that average under 10°C.
Borrowed figures: Des Vallées has no normals station, so these come from Angers, 7.6 km east.
A year in Des Vallées at a glance
Each month’s typical high and low, in °C.
What stands out about Des Vallées’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Des Vallées feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
About 179 frosts and 112 warm days a year
From September to May frost is routine, and in January it comes on almost every night. On about 29 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
Rain and melted snow: about 938 mm a year
June is the wettest month and February the driest. Some 120 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Angers publishes no full year of precipitation or snowfall, so these figures, and the snow below, come from Ottawa (City), 18 km away.
About 185 cm of snow a year
Expect snow from October to April, with about 45 cm in January, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Des Vallées
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
A day averaging 10 degrees under 18°C adds 10 to the total; warm days add nothing. Over a year, a home here needs more heating than 60% of Canadian towns.
Living with Des Vallées’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Wait until about 26 May to plant out; frost tends to come back around 22 September, about 119 days later.
For long days outdoors, Jun, Jul, Aug and Sep bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →A typical year is calm by definition; Des Vallées’s hazards page covers the exceptions.
Flood & hazards →ECCC’s normals location: Angers
Every temperature, frost, snow and degree-day figure on this page is the 1991–2020 normal ECCC publishes for Angers.
| Distance from the town | 7.6 km east |
| Station altitude | 91 m |
| Completeness | at least 20 years |
| WMO standard normals | No |
| Precipitation from | Ottawa (City), 18 km |
| Coldest reading, 1991–2020 | −39.0°C |
| Hottest reading, 1991–2020 | 36.0°C |
| Next-nearest location | Ottawa (City), 18 km |
How Des Vallées compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Quebec.
Nearby towns’ climate
Places around Des Vallées whose figures come from another normals location.
Des Vallées weather by month
Month by month, 1991–2020: the usual high, low and mean, the rain and snow, and the snowfall.
| Month | High | Low | Mean | Rain & snow | Snow |
|---|---|---|---|---|---|
| January | −5.6°C | −16.5°C | −11.2°C | 65 mm | 45 cm |
| February | −3.3°C | −15.5°C | −9.5°C | 52 mm | 41 cm |
| March | 2.3°C | −8.7°C | −3.7°C | 62 mm | 31 cm |
| April | 10.7°C | −1.0°C | 5.0°C | 81 mm | 8 cm |
| May | 19.1°C | 5.6°C | 12.2°C | 80 mm | 0 cm |
| June | 23.8°C | 10.9°C | 17.4°C | 95 mm | 0 cm |
| July | 26.2°C | 13.4°C | 19.6°C | 92 mm | 0 cm |
| August | 25.1°C | 12.5°C | 18.7°C | 87 mm | 0 cm |
| September | 20.4°C | 8.1°C | 14.2°C | 87 mm | 0 cm |
| October | 12.6°C | 2.2°C | 7.4°C | 90 mm | 2 cm |
| November | 5.2°C | −3.5°C | 1.0°C | 72 mm | 16 cm |
| December | −2.1°C | −11.0°C | −7.0°C | 74 mm | 43 cm |
| Year | 11.2°C | −0.3°C | 5.3°C | 938 mm | 185 cm |
January strays furthest from its normal year to year, by 3.5°C; August the least
Each bar spans a month’s coldest and warmest readings over thirty years; March’s run from −33.5°C in 2007 to 27.0°C in 2012.
Where Des Vallées’s numbers come from
Averages over 30 years, not a forecast.
- Normals: Environment and Climate Change Canada’s 1991–2020 normals, Angers: the nearest of its locations with every month’s temperatures.
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- Comparisons: the towns and neighbourhoods of 2,500+ across Canada, each on its nearest normals location, without the city totals or the reserves.
- Not on this page: sunshine, absent from every 1991–2020 location, and an altitude correction, for want of the town’s own elevation.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Des Vallées’s climate
How warm does Des Vallées get in summer?
Of all twelve months, July has the warmest afternoons, about 26.2°C.
How cold does Des Vallées get in winter?
Expect nights around −16.5°C in January; no month is colder.
How much rain and snow does Des Vallées get?
About 938 mm a year, rain and melted snow together. June is the wettest month (95 mm) and February the driest (52 mm).
How long does snow stay on the ground?
Count on about 121 days of snow cover a year, 1 cm or deeper.
Are these figures for Des Vallées itself?
Only indirectly: the readings are made at Angers, outside Des Vallées.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Des Vallées →
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).