Sioux Valley Dakota Nation has some of the coldest winter nights among Canadian towns
High summer brings afternoon highs near 24.9°C. June is the wettest month here, with about 7.0 times the rain and snow of February. Counting rain and snow together, it is drier than 76% of Canadian towns. Picnics, hikes and garden evenings come into their own from June to August, with highs of 23–25°C.
ECCC publishes no normals for Sioux Valley Dakota Nation itself; the figures are those of Brandon, 41 km east.
A year in Sioux Valley Dakota Nation at a glance
Each month’s typical high and low, in °C.
What stands out about Sioux Valley Dakota Nation’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in Manitoba beside it.
What a year in Sioux Valley Dakota Nation feels like
Seasons and months as ECCC’s 1991–2020 normals give them: a typical day’s high and low.
205 frost days and 103 days above 20°C a year
Frost comes from September to May; in January almost every night freezes. Deep cold, under −20°C, comes on about 53 nights a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
Rain and melted snow: about 489 mm a year
About 73 days a year bring 1 mm or more.
Rain and snow by month
Millimetres
Rain alone by month
Millimetres
About 128 cm of snow a year
Expect snow from October to May, with about 29 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 Sioux Valley Dakota Nation
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
ECCC sums, over the year, how many degrees each day’s average falls short of 18°C. That means homes here need more heating than 97% of Canadian towns.
Living with Sioux Valley Dakota Nation’s climate
Gardening, time outside, winter cold and summer heat, from the 1991–2020 normals.
Between the last frost, near 18 May, and the first, near 18 September, lie about 122 frost-free days.
Mild days and mild nights together (17–27°C by day, 8°C or more at night) belong to Jun, Jul and Aug.
Parks & trails →Frostbite weather, a wind chill under −20, turns up on about 87 days a year.
Humid heat, a humidex over 30, comes on about 31 days a year.
For blizzards, floods and wildfire, turn to Sioux Valley Dakota Nation’s hazards page.
Flood & hazards →ECCC’s normals location: Brandon
Brandon is a composite: ECCC joins 2 stations’ readings to make its 1991–2020 normals.
| Distance from the town | 41 km east |
| Station altitude | 409 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Coldest reading, 1991–2020 | −43.2°C |
| Hottest reading, 1991–2020 | 37.9°C |
| Average wind | 15.2 km/h on average, most often from the west |
| Next-nearest location | Elkhorn, 50 km |
How Sioux Valley Dakota Nation 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
Places around Sioux Valley Dakota Nation whose figures come from another normals location. The nearest places to Sioux Valley Dakota Nation with figures are 23–39 km away.
Sioux Valley Dakota Nation 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 | −21.9°C | −16.7°C | 18 mm | 25 cm |
| February | −8.5°C | −19.7°C | −14.1°C | 14 mm | 17 cm |
| March | −1.6°C | −12.5°C | −7.0°C | 24 mm | 19 cm |
| April | 9.6°C | −3.3°C | 3.1°C | 27 mm | 8 cm |
| May | 17.4°C | 3.2°C | 10.3°C | 65 mm | 4 cm |
| June | 22.6°C | 9.7°C | 16.2°C | 98 mm | 0 cm |
| July | 24.9°C | 11.8°C | 18.4°C | 72 mm | 0 cm |
| August | 25.1°C | 10.2°C | 17.7°C | 56 mm | 0 cm |
| September | 19.5°C | 4.9°C | 12.2°C | 43 mm | under 1 cm |
| October | 10.1°C | −2.2°C | 4.0°C | 32 mm | 6 cm |
| November | −0.3°C | −10.3°C | −5.3°C | 20 mm | 21 cm |
| December | −8.6°C | −18.5°C | −13.6°C | 22 mm | 29 cm |
| Year | 8.2°C | −4.0°C | 2.1°C | 489 mm | 128 cm |
The month with the widest range: March, −38.4°C to 22.6°C
Bars run from each month’s record low to its record high over 1991–2020; February is the month whose average wanders most from year to year (±4.2°C around −14.1°C), July the one that wanders least (±1.3°C).
Where Sioux Valley Dakota Nation’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the 1991–2020 normals from ECCC for Brandon, its nearest location with complete temperatures.
- Comparisons: all Canadian places of 2,500 or more except city totals and reserves, each read the same way.
- 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 Sioux Valley Dakota Nation’s climate
How warm does Sioux Valley Dakota Nation get in summer?
Midsummer means August, with afternoons near 25.1°C on a typical day.
How cold does Sioux Valley Dakota Nation get in winter?
Lows sink to −21.9°C on an average January night.
How much rain and snow does Sioux Valley Dakota Nation get?
About 489 mm a year, rain and melted snow together. June is the wettest month (98 mm) and February the driest (14 mm).
How long does snow stay on the ground?
Roughly 138 days a year start with snow cover of 1 cm or more.
Are these figures for Sioux Valley Dakota Nation itself?
Not directly: Sioux Valley Dakota Nation has no ECCC normals of its own, and Brandon stands in for it.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Sioux Valley Dakota Nation →
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).