Midwinter lows in St. Matthews sink below those of 95% of Canadian towns
Peak summer warmth arrives in July, with afternoons near 25.8°C. It is a dry place: less rain and snow fall 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. From June to August, highs of 23–26°C make it easy to spend the day outdoors.
Figures: ECCC’s 1991–2020 normals for Winnipeg Richardson (Airport) (5.6 km north-west).
A year in St. Matthews at a glance
Each month’s typical high and low, in °C.
What stands out about St. Matthews’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in St. Matthews feels like
Each season’s and each month’s usual high and low, 1991–2020.
About 193 frosts and 110 warm days a year
The frost season runs September to May, and January freezes nearly every night. 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
About 519 mm of rain and snow a year
July brings the most rain and snow; February, the least. 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
126 cm of snow in a typical 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 St. Matthews
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. In heating terms, homes need more heating than 89% of Canadian towns.
Living with St. Matthews’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The growing season between frosts lasts about 122 days, roughly 23 May to 22 September.
Highs of 17–27°C with nights of 8°C or more come in Jun, Jul and Aug.
Parks & trails →Bitter wind chill, under −20, comes on about 86 days a year.
A humidex above 30 marks about 37 days in a normal year.
Severe weather is a separate story from the averages: see St. Matthews’s 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 | 5.6 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, 79 km |
How St. Matthews 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 Manitoba.
Nearby towns’ climate
The nearest places on a normals location of their own: those that share St. Matthews’s would only repeat its figures. No closer places have figures: these lie 42–50 km from St. Matthews.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| St. Matthews 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 |
| Cartier 44 km · Portage Southport | 25.4°C about the same | −19.1°C 2.1°C milder | 493 mm |
St. Matthews 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 |
Two years in three, December’s average lands within 4.1°C of normal, against the steadier July
Over 1991–2020, March saw both −37.4°C (2003) and 23.7°C (2012), the widest span of any month.
Where St. Matthews’s numbers come from
Averages over 30 years, not a forecast.
- Normals: 1991–2020 normals for Winnipeg Richardson (Airport) from ECCC’s climate data site, the nearest location with every month of temperature.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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. Matthews’s climate
How warm does St. Matthews get in summer?
At its warmest, in July, the normal high is 25.8°C.
How cold does St. Matthews get in winter?
A typical January night falls to −21.2°C, the year’s low point.
How much rain and snow does St. Matthews get?
The year adds up to 519 mm. July is the peak month (77 mm) and February the low one (13 mm).
Are these figures for St. Matthews itself?
Nearly: Winnipeg Richardson (Airport), the location behind them, sits just beyond St. Matthews’s boundary.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for St. Matthews →
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).