Nights turn raw in Rossmere-B each January, colder than in 95% of Canadian towns
Expect July afternoons of about 25.8°C. By precipitation alone, it ranks drier than 72% of Canadian towns. Temperatures cover 47°C across the year, low to high. Plan time outside from June to August, when highs sit at 23–26°C.
1991–2020 normals from ECCC’s Winnipeg Richardson (Airport) location, 10 km west.
A year in Rossmere-B at a glance
Each month’s typical high and low, in °C.
What stands out about Rossmere-B’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in Rossmere-B feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 193 frosts and 110 warm days a year
From September to May frost is routine, and in January it comes on almost every night. Deep cold, under −20°C, comes on about 52 nights a year.
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
July brings the most rain and snow; February, the least. On about 80 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
Snowfall: about 126 cm in a normal year
Snow falls from October to May, most of all in December (about 27 cm).
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in Rossmere-B
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Warm days count for nothing; each colder day adds how far its mean sits below 18°C. That means homes here need more heating than 89% of Canadian towns.
Living with Rossmere-B’s climate
What the normals mean for a garden, a day outside and the depth of winter.
Between the last frost, near 23 May, and the first, near 22 September, lie about 122 frost-free days.
For long days outdoors, Jun, Jul and Aug bring highs of 17–27°C and lows of 8°C or more.
Parks & trails →Wind chill falls below −20 on about 86 days a year: cover skin and dress in layers.
The air feels heavier than 30 on the humidex for about 37 days a year.
Extremes don’t show in averages: floods, wildfire smoke and ice storms are on Rossmere-B’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 | 10 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 | Gimli, 78 km |
How Rossmere-B 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 Rossmere-B’s would only repeat its figures. The nearest places to Rossmere-B with figures are 36–49 km away.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Rossmere-B Winnipeg Richardson (Airport) | 25.8°C | −21.2°C | 519 mm |
| Brokenhead 36 km · Pinawa | 25.2°C 0.6°C cooler | −21.7°C 0.5°C colder | 571 mm |
| Cartier 49 km · Portage Southport | 25.4°C about the same | −19.1°C 2.1°C milder | 493 mm |
Rossmere-B 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 |
The month with the widest range: March, −37.4°C to 23.7°C
December is the least predictable month: about two years in three its average lands within 4.1°C of the normal, −12.7°C. July is the steadiest, within 1.4°C.
Where Rossmere-B’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: a pool of Canadian towns and neighbourhoods of 2,500 or more, read alike; whole cities and reserves stay out of it.
- 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 Rossmere-B’s climate
How warm does Rossmere-B get in summer?
At its warmest, in July, the normal high is 25.8°C.
How cold does Rossmere-B get in winter?
Midwinter means January, when a typical night reaches −21.2°C.
How much rain and snow does Rossmere-B get?
Precipitation totals 519 mm a year, with July the wettest month (77 mm) and February the driest (13 mm).
Are these figures for Rossmere-B itself?
Close to it: they are ECCC’s 1991–2020 normals for Winnipeg Richardson (Airport), just outside Rossmere-B’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Rossmere-B →
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).