Few Canadian towns have colder winter nights than Rivière-Héva
The warmest part of a July day comes in at 23.8°C on average. Seasons differ by 46°C, from the coldest nights to the warmest afternoons. Summers stay cool: July afternoons here are cooler than in 71% of Canadian towns. Long walks are most pleasant from June to August, when afternoons reach 22–24°C.
No ECCC station in Rivière-Héva has 1991–2020 normals; the page reads Val-d'Or, 33 km south-east, instead.
A year in Rivière-Héva at a glance
Each month’s typical high and low, in °C.
What stands out about Rivière-Héva’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Quebec beside it.
What a year in Rivière-Héva feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 202 frosts and 86 warm days a year
Frost comes from September to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 57 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 868 mm a year
September brings the most rain and snow; February, the least. Some 135 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Heating a home in Rivière-Héva
88% of a year’s heating need falls between October and April. Months averaging under 10°C: October to May.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together. Over a year, a home here needs more heating than 98% of Canadian towns.
Living with Rivière-Héva’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Tender plants are usually safe from around 31 May until frost returns near 16 September: about 107 days.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul and Aug.
Parks & trails →Expect around 85 days a year when the wind chill sinks below −20.
Count on some 19 humid days a year with the humidex past 30.
Thirty-year normals hide the storms and the extremes: the hazards page has Rivière-Héva’s risks.
Flood & hazards →ECCC’s normals location: Val-d'Or
Val-d'Or is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 33 km south-east |
| Station altitude | 337 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Snowfall from | No location within 100 km |
| Coldest reading, 1991–2020 | −42.7°C |
| Hottest reading, 1991–2020 | 36.1°C |
| Average wind | 12.5 km/h on average, most often from the south |
| Next-nearest location | Rouyn, 63 km |
How Rivière-Héva compares
Placed among 2,611 Canadian towns and neighbourhoods of 2,500+, each on its nearest normals location; each dot is another location used in Quebec.
Nearby towns’ climate
Places around Rivière-Héva whose figures come from another normals location. No closer place has figures: this one lies 46 km from Rivière-Héva.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Rivière-Héva Val-d'Or | 23.8°C | −22.2°C | 868 mm |
| Trécesson 46 km · Rouyn | 23.7°C about the same | −20.1°C 2.1°C milder | 868 mm |
Rivière-Héva weather by month
Each month’s normals, 1991–2020: high, low, mean and precipitation.
| Month | High | Low | Mean | Rain & snow |
|---|---|---|---|---|
| January | −10.4°C | −22.2°C | −16.3°C | 55 mm |
| February | −8.1°C | −21.2°C | −14.7°C | 42 mm |
| March | −1.6°C | −14.7°C | −8.2°C | 47 mm |
| April | 6.7°C | −5.1°C | 0.8°C | 65 mm |
| May | 16.3°C | 2.7°C | 9.5°C | 69 mm |
| June | 22.0°C | 8.5°C | 15.2°C | 84 mm |
| July | 23.8°C | 11.5°C | 17.7°C | 101 mm |
| August | 22.2°C | 10.3°C | 16.3°C | 93 mm |
| September | 17.3°C | 5.9°C | 11.6°C | 102 mm |
| October | 9.0°C | 0.2°C | 4.6°C | 82 mm |
| November | 0.8°C | −7.2°C | −3.2°C | 75 mm |
| December | −6.3°C | −16.0°C | −11.2°C | 54 mm |
| Year | 7.7°C | −4.0°C | 1.9°C | 868 mm |
April has run from −27.1°C to 26.8°C in thirty years
The month to count on least is January: one year in three its average strays more than 3.5°C from −16.3°C. July moves least, typically by 1.2°C.
Where Rivière-Héva’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Val-d'Or from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: Canada’s towns and neighbourhoods of 2,500+ (no city totals, no reserves), each through its own nearest location.
- Not on this page: a snowfall figure (none within 100 km), sunshine (none for 1991–2020) and 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 Rivière-Héva’s climate
How warm does Rivière-Héva get in summer?
Afternoons average 23.8°C in July, the warmest time of year.
How cold does Rivière-Héva get in winter?
Deep winter means January, when nights average −22.2°C.
How much rain and snow does Rivière-Héva get?
The year adds up to 868 mm. September is the peak month (102 mm) and February the low one (42 mm).
Are these figures for Rivière-Héva itself?
They come from Val-d'Or, which ECCC uses as the nearest normals location for Rivière-Héva.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Rivière-Héva →
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).