Midwinter lows in St. George sink below those of 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 swings widely: the coldest month’s nights and the warmest month’s afternoons are 47°C apart. Ice scrapers and block heaters earn their keep on roughly 193 days a year at 0°C or below.
Read at Winnipeg Richardson (Airport), 12 km north-west: ECCC’s normals for 1991–2020.
A year in St. George at a glance
Each month’s typical high and low, in °C.
What stands out about St. George’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in St. George feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
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
The most falls in July, the least in February. 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
The snow season runs October to May; December brings the most, about 27 cm.
Snowfall by month
Centimetres
Snow on the ground by month
Centimetres at month’s end
Heating a home in St. George
91% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
One degree below 18°C for one day makes one heating degree day; the year’s days are added together. Homes here need more heating than 89% of Canadian towns.
Living with St. George’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Seedlings can go out once the average last frost, around 23 May, has passed; autumn’s first, near 22 September, ends a season of about 122 days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun, Jul and Aug.
Parks & trails →About 86 days a year bring a wind chill under −20, when bare skin chills fast.
The air feels heavier than 30 on the humidex for about 37 days a year.
Bad-weather days, from blizzards to floods, get their own page for St. George: the hazards page.
Flood & hazards →ECCC’s normals location: Winnipeg Richardson (Airport)
ECCC builds the Winnipeg Richardson (Airport) normals from 4 stations’ records over 1991–2020, joined where one replaced another.
| Distance from the town | 12 km north-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, 83 km |
How St. George 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
Nearby places read from a different ECCC location (places on St. George’s own would show the same figures). Distances here run 42–49 km: that is how far the nearest places with figures are from St. George.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| St. George Winnipeg Richardson (Airport) | 25.8°C | −21.2°C | 519 mm |
| Brokenhead 42 km · Pinawa | 25.2°C 0.6°C cooler | −21.7°C 0.5°C colder | 571 mm |
| St-Pierre-Jolys 46 km · Emerson | 26.0°C about the same | −20.4°C 0.8°C milder | 543 mm |
| Cartier 48 km · Portage Southport | 25.4°C about the same | −19.1°C 2.1°C milder | 493 mm |
St. George 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 | −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 |
In March, anything from −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 St. George’s numbers come from
Averages over 30 years, not a forecast.
- Normals: ECCC’s 1991–2020 Canadian Climate Normals for Winnipeg Richardson (Airport), the nearest location with a full year 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, 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 St. George’s climate
How warm does St. George get in summer?
The year’s warmest days come in July, with highs averaging 25.8°C.
How cold does St. George get in winter?
At its coldest, in January, the normal low is −21.2°C.
How much rain and snow does St. George 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 St. George itself?
They are the normals for Winnipeg Richardson (Airport), measured just outside St. George itself.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for St. George →
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).