Photo: Darren Kirby · CC BY-SA 2.0Kaslo has some of the warmest summer afternoons among Canadian towns
The coldest hours of a January night bottom out at −2.9°C on average. Precipitation is light here, less than falls on 96% of Canadian towns. Winter and summer sit 32°C apart. Expect about 100 frosty starts a year, days when the air falls to freezing.
The nearest ECCC normals location is Nelson, 55 km south-west: at that distance its figures describe the region more than Kaslo itself.
A year in Kaslo at a glance
Each month’s typical high and low, in °C.
What stands out about Kaslo’s climate
Compared with Canadian towns, with its place among towns of 2,500+ in British Columbia beside it.
What a year in Kaslo feels like
Typical highs and lows by season and by month, from ECCC’s 1991–2020 normals.
Frost on 100 days, 20°C on 120
Frosts fall from October to April; December has the most, about 23. Heat of 30°C or more comes on about 27 days a year.
Frost days by month
Average days at 0°C or below
Days above 20°C by month
Average days
About 386 mm of rain and snow a year
The most falls in June, 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
Nelson publishes no full year of precipitation or snowfall, so these figures, and the snow below, come from Cranbrook, 88 km away.
Snowfall: about 133 cm in a normal year
Expect snow from October to May, with about 35 cm in December, the snowiest month.
Snowfall by month
Centimetres
Heating a home in Kaslo
90% of a year’s heating need falls between October and April. Months averaging under 10°C: October to April.
Think of it as a year’s worth of daily shortfalls below 18°C, added up. By this count, homes here need less heating than 88% of Canadian towns.
Living with Kaslo’s climate
The averages read for the garden, the outdoors and the coldest and hottest days.
The comfortable months for a day outside, highs of 17–27°C and nights of 8°C or more: Jun and Sep.
Parks & trails →The wind chill passes −20 on about 2 days in a normal year.
Plan shade and water for about 38 days a year above 30 on the humidex.
What averages leave out, the floods and ice storms, is on Kaslo’s hazards page.
Flood & hazards →ECCC’s normals location: Nelson
Nelson is one of the 450 places where ECCC publishes 1991–2020 normals.
| Distance from the town | 55 km south-west |
| Station altitude | 535 m |
| Completeness | meets the WMO “3 and 5” rule |
| WMO standard normals | No |
| Precipitation from | Cranbrook, 88 km |
| Coldest reading, 1991–2020 | −19.8°C |
| Hottest reading, 1991–2020 | 39.7°C |
| Average wind | 8.1 km/h on average, most often from the south-west |
| Next-nearest location | Nakusp, 77 km |
How Kaslo compares
Compared with 2,611 towns and neighbourhoods of 2,500 or more across Canada; the dots mark the other normals locations in British Columbia.
Nearby towns’ climate
Places around Kaslo whose figures come from another normals location. Kaslo has few close neighbours with figures, so the list reaches 25–74 km out.
| Town | July high | January low | Rain & snow |
|---|---|---|---|
| Kaslo Nelson | 28.5°C | −2.9°C | 386 mm |
| Electoral Area D, Central Kootenay 25 km · Nakusp | 27.4°C 1.1°C cooler | −3.8°C 0.9°C colder | 386 mm |
| Electoral Area A, Central Kootenay 63 km · Creston | 28.6°C about the same | −4.0°C 1.1°C colder | 689 mm |
| Kimberley 72 km · Cranbrook | 26.9°C 1.6°C cooler | −10.1°C 7.2°C colder | 386 mm |
Kaslo 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 | 1.4°C | −2.9°C | −0.7°C | 27 mm | 28 cm |
| February | 4.1°C | −2.9°C | 0.6°C | 20 mm | 17 cm |
| March | 8.9°C | −0.2°C | 4.4°C | 27 mm | 16 cm |
| April | 14.5°C | 2.7°C | 8.6°C | 23 mm | 6 cm |
| May | 20.1°C | 6.5°C | 13.3°C | 42 mm | 1 cm |
| June | 22.9°C | 9.8°C | 16.4°C | 62 mm | 0 cm |
| July | 28.5°C | 12.7°C | 20.7°C | 35 mm | 0 cm |
| August | 28.1°C | 12.6°C | 20.4°C | 24 mm | 0 cm |
| September | 21.9°C | 8.8°C | 15.4°C | 30 mm | 0 cm |
| October | 13.1°C | 3.9°C | 8.5°C | 26 mm | 6 cm |
| November | 5.5°C | 0.3°C | 2.9°C | 35 mm | 24 cm |
| December | 1.0°C | −3.0°C | −1.0°C | 35 mm | 35 cm |
| Year | 14.2°C | 4.0°C | 9.1°C | 386 mm | 133 cm |
September: −1.1°C at its coldest, 35.8°C at its warmest
From one year to the next, February’s average typically shifts by 1.9°C around its normal of 0.6°C, the widest of any month, while April’s shifts by 1.1°C.
Where Kaslo’s numbers come from
Averages over 30 years, not a forecast.
- Normals: the closest ECCC location with twelve months of temperature normals, Nelson, 1991–2020.
- Other locations: where a location publishes no full year of precipitation or snowfall, the nearest one that does supplies it, named beside those figures.
- Comparisons: Canadian towns and neighbourhoods of at least 2,500, each placed by its nearest location (city totals and reserves excluded).
- 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 Kaslo’s climate
How warm does Kaslo get in summer?
Highs reach 28.5°C on an average July day; no month is warmer.
How cold does Kaslo get in winter?
Deep winter means December, when nights average −3.0°C.
How much rain and snow does Kaslo get?
Around 386 mm a year in all, from 62 mm in June down to 20 mm in February.
Are these figures for Kaslo itself?
Not really: Nelson, the closest location with normals, lies well away from Kaslo.
Data Source: Environment and Climate Change Canada · ECCC Data Services End-use Licence Today’s forecast for Kaslo →
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).