Nights turn raw in Radisson each January, colder than in 95% of Canadian towns
Peak summer warmth arrives in July, with afternoons near 25.8°C. Rain and snow together come to less here than on 72% of Canadian towns. The year is lopsided: July gets about 5.8 times what February does. The furnace earns its keep from October to April, the months that average under 10°C.
1991–2020 normals from ECCC’s Winnipeg Richardson (Airport) location, 16 km west.
A year in Radisson at a glance
Each month’s typical high and low, in °C.
What stands out about Radisson’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in Radisson feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
About 193 frosts and 110 warm days a year
Frost comes from September to May; in January almost every night freezes. Some 52 nights a year drop under −20°C.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
519 mm of precipitation in a typical year
Some 80 days a year see 1 mm of rain or snow or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 126 cm in a normal year
Expect snow from October to May, with about 27 cm in December, the snowiest month.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Radisson
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Heating degree days total each day’s gap between its mean temperature and 18°C. That means homes here need more heating than 89% of Canadian towns.
Living with Radisson’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Plant out after about 23 May; the first frost of autumn usually arrives near 22 September, leaving roughly 122 days without frost.
For long days outdoors, Jun, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Winter brings about 86 days with a wind chill below −20.
Humid heat, a humidex over 30, comes on about 37 days a year.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Radisson’s hazards page.
Flood & hazards →ECCC’s normals location: Winnipeg Richardson (Airport)
Behind the 1991–2020 normals for Winnipeg Richardson (Airport) are 4 stations, which ECCC combines into one record.
| Distance from the town | 16 km west |
| Station altitude | 239 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −41.8°C |
| Hottest reading, 1991–2020 | 37.8°C |
| Average wind | 17.5 km/h on average, most often from the south |
| Next-nearest location | Pinawa, 75 km |
How Radisson compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in Manitoba.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share Radisson’s would only repeat its figures. No closer places have figures: these lie 32–56 km from Radisson.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Radisson Winnipeg Richardson (Airport) | 25.8°C | −21.2°C | 519 mm |
| Brokenhead 32 km · Pinawa | 25.2°C 0.6°C cooler | −21.7°C 0.5°C colder | 571 mm |
| St-Pierre-Jolys 51 km · Emerson | 26.0°C about the same | −20.4°C 0.8°C milder | 543 mm |
| Cartier 55 km · Portage Southport | 25.4°C about the same | −19.1°C 2.1°C milder | 493 mm |
| Teulon 56 km · Gimli | 25.3°C 0.5°C cooler | −22.7°C 1.5°C colder | 517 mm |
Radisson 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 | −11.4°C | −21.2°C | −16.3°C | 18 mm | 25 cm |
| February | −8.8°C | −19.3°C | −14.1°C | 13 mm | 12 cm |
| March | −0.9°C | −11.2°C | −6.1°C | 26 mm | 19 cm |
| April | 10.0°C | −2.5°C | 3.8°C | 33 mm | 14 cm |
| May | 18.1°C | 4.2°C | 11.1°C | 70 mm | 4 cm |
| June | 23.3°C | 10.9°C | 17.1°C | 74 mm | 0 cm |
| July | 25.8°C | 13.2°C | 19.5°C | 77 mm | 0 cm |
| August | 25.4°C | 11.9°C | 18.7°C | 74 mm | 0 cm |
| September | 19.6°C | 6.9°C | 13.3°C | 53 mm | 0 cm |
| October | 10.4°C | −0.2°C | 5.1°C | 38 mm | 4 cm |
| November | 0.1°C | −8.8°C | −4.4°C | 25 mm | 21 cm |
| December | −8.2°C | −17.3°C | −12.7°C | 19 mm | 27 cm |
| Year | 8.6°C | −2.8°C | 2.9°C | 519 mm | 126 cm |
A March here can run from −37.4°C to 23.7°C
Bars run from each month’s record low to its record high over 1991–2020; December is the month whose average wanders most from year to year (±4.1°C around −12.7°C), July the one that wanders least (±1.4°C).
Where Radisson’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the Canadian Climate Normals, 1991–2020, at Winnipeg Richardson (Airport) (the closest location with all twelve months of temperatures).
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- Not on this page: sunshine (no 1991–2020 normals exist for it) and any altitude adjustment, since there is no elevation for the town itself.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Radisson’s climate
How warm does Radisson get in summer?
Midsummer means July, with afternoons near 25.8°C on a typical day.
How cold does Radisson get in winter?
Overnight lows average −21.2°C in January, the coldest month.
How much rain and snow does Radisson get?
Count on roughly 519 mm a year, heaviest in July (77 mm) and lightest in February (13 mm).
Are these figures for Radisson itself?
Nearly: Winnipeg Richardson (Airport), the location behind them, sits just beyond Radisson’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Radisson →
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).