Nights turn raw in Weston each January, colder than in 95% of Canadian towns
High summer brings afternoon highs near 25.8°C. The wettest month is July; the driest is February. It is a dry place: less rain and snow fall here than on 72% of Canadian towns. Have the furnace checked before October to April, the months that average under 10°C.
Figures: ECCC’s 1991–2020 normals for Winnipeg Richardson (Airport) (2.9 km west).
A year in Weston at a glance
Each month’s typical high and low, in °C.
What stands out about Weston’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in Weston feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
193 frost days and 110 days above 20°C a year
From September to May frost is routine, and in January it comes on almost every night. On about 52 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
519 mm of precipitation in a typical year
On about 80 days a year, 1 mm or more falls.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 126 cm of snow a 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 Weston
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. In heating terms, homes need more heating than 89% of Canadian towns.
Living with Weston’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Frost usually lets go around 23 May and returns near 22 September, about 122 days apart.
Warm afternoons without cold nights, 17–27°C and 8°C or more, mark Jun, Jul and Aug.
Parks & trails →Expect around 86 days a year when the wind chill sinks below −20.
The air feels heavier than 30 on the humidex for about 37 days a year.
Ice storms, floods and heat waves are risks, not averages: they are on Weston’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 | 2.9 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 | Portage Southport, 77 km |
How Weston 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 Manitoba.
Nearby towns’ climate
Nearby places read from a different ECCC location (places on Weston’s own would show the same figures). Distances here run 42–55 km: that is how far the nearest places with figures are from Weston.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Weston Winnipeg Richardson (Airport) | 25.8°C | −21.2°C | 519 mm |
| Cartier 42 km · Portage Southport | 25.4°C about the same | −19.1°C 2.1°C milder | 493 mm |
| Brokenhead 42 km · Pinawa | 25.2°C 0.6°C cooler | −21.7°C 0.5°C colder | 571 mm |
| Teulon 52 km · Gimli | 25.3°C 0.5°C cooler | −22.7°C 1.5°C colder | 517 mm |
| St-Pierre-Jolys 55 km · Emerson | 26.0°C about the same | −20.4°C 0.8°C milder | 543 mm |
Weston 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 Weston’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Winnipeg Richardson (Airport), its nearest location with complete 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, not in ECCC’s 1991–2020 normals, and the effect of the town’s height, for which there is no figure.
Canadian Climate Normals 1991–2020 · ECCC Data Services End-use Licence. Data Source: Environment and Climate Change Canada
Questions about Weston’s climate
How warm does Weston get in summer?
Afternoons average 25.8°C in July, the warmest time of year.
How cold does Weston get in winter?
Deep winter means January, when nights average −21.2°C.
How much rain and snow does Weston get?
519 mm a year counting snow as water. The wettest month is July (77 mm); the driest, February (13 mm).
Are these figures for Weston itself?
Almost: ECCC’s Winnipeg Richardson (Airport) location, which gives these figures, lies a short way outside Weston.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Weston →
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).