Yukon Snow Day Predictor — Whitehorse, Dawson City and All Yukon Communities
Yukon Snow Day Predictor
Canada's most accurate snow day predictor
Check tonight’s school closure probability for schools across the Yukon Territory. Our predictor uses live Environment Canada weather data and applies it through Yukon-specific closure patterns — giving you a clear 0–98% probability score, updated every hour. Unlike southern Canada where snowfall is the primary trigger, Yukon school closures are driven primarily by extreme cold and ice fog — our algorithm is specifically calibrated for this.
Yukon Snow Day Triggers — Cold, Ice Fog, and Blowing Snow
Yukon school closures follow fundamentally different patterns from Southern Canada:
- Extreme Cold (primary trigger): When wind chill reaches −40°C or colder, students waiting at bus stops or walking to school face genuine frostbite risk within minutes. Yukon school authorities close schools for cold events that would seem extreme even by Alberta or Northern Ontario standards. Our algorithm weights wind chill at 1.8× for Yukon locations — the highest multiplier in our Canadian database.
- Ice Fog (Whitehorse-specific): At temperatures below approximately −30°C, moisture in Whitehorse’s Yukon River valley crystallises into dense ice particles that reduce visibility to near zero — with no precipitation and dry roads. Ice fog regularly triggers bus cancellations because driver visibility is severely compromised even when roads are fully passable.
- Blowing Snow and Highway Conditions: Communities connected by the Alaska Highway, Klondike Highway, or secondary access roads depend on these routes for school transportation. In blizzard conditions, these routes can become impassable before school opening.
| Community | Estimated Closures/Year | Primary Trigger | Peak Months |
|---|---|---|---|
| Whitehorse | 5–10 | Extreme cold (−35°C+), ice fog | January–February |
| Dawson City | 8–15 | Extreme cold (−45°C to −55°C) | December–February |
| Watson Lake | 6–12 | Extreme cold, highway conditions | December–February |
| Haines Junction | 5–10 | Extreme cold, highway access | January–February |
Dawson City is among Canada’s coldest permanently inhabited locations. Located in the Klondike River valley, temperature inversions regularly push it 10–15°C colder than Whitehorse — reaching −45°C to −55°C in deep winter. Schools in Dawson City effectively plan for extended cold-closure periods in January and February with no equivalent anywhere in southern Canada.
Yukon School Authorities — Who Decides Closures
- Yukon School District (YSD) — Public English schools territory-wide. ysd.yk.ca | Announces: 7:00–7:30 AM | Radio: CBC North 1230 AM, CKRW 96.7 FM Whitehorse
- Commission scolaire francophone, Yukon (CSFY) — French-language schools. csfy.yk.ca | Announces: 7:00–7:30 AM | Radio: CBC North 1230 AM
- First Nations schools — Band-operated and First Nations-controlled schools in individual communities. Check individual First Nation websites or community Facebook groups for announcements.
Note: Unlike Ontario and Alberta where boards announce by 6:00–6:30 AM, Yukon authorities typically announce by 7:00–7:30 AM. Always check Environment Canada Extreme Cold Warnings and Yukon 511 road conditions alongside our prediction.
Yukon Community Predictors
- Whitehorse Snow Day Predictor — Yukon School District, CSFY
- Watson Lake Snow Day Predictor — Watson Lake Secondary area
How to Use This Predictor for Yukon
- Watch apparent temperature (wind chill), not just snowfall: A clear, calm −45°C night closes schools more reliably than 20 cm of snow. The wind chill forecast is your primary signal.
- Check 5 AM for the most accurate prediction: Our overnight model update assimilates actual Yukon station data — the 5 AM check is 8–12% more accurate than the 9 PM prediction.
- Supplement with Environment Canada: Check for active Extreme Cold Warnings at weather.gc.ca — issued community-by-community for Yukon.
Frequently Asked Questions — Yukon Snow Days
What temperature closes schools in Yukon?
Yukon school authorities typically consider closures when apparent temperature (wind chill) reaches −40°C or colder sustained through morning hours. Dawson City closes more frequently — interior Yukon regularly reaches −45°C to −55°C. Cold-day closures are more common than snowfall-based closures in Yukon, unlike anywhere in southern Canada.
What is ice fog and why does it close Whitehorse schools?
Ice fog forms at temperatures below approximately −30°C when moisture in Whitehorse’s valley crystallises into dense ice particles, reducing visibility to near zero with no precipitation and dry roads. It triggers school bus cancellations because driver visibility is severely compromised even when roads are clear and passable.
What radio station announces Yukon school closures?
CBC North Whitehorse (1230 AM) and CKRW 96.7 FM are the primary channels for YSD closure announcements. YSD’s website (ysd.yk.ca) and the Yukon government education page also publish closures. Announcements typically come by 7:00–7:30 AM — slightly later than Ontario’s 6:00 AM standard.
Why does Dawson City get more closures than Whitehorse?
Dawson City’s sheltered river valley location traps Arctic air during temperature inversions, making it consistently 10–15°C colder than Whitehorse during cold events. Its deep interior Yukon position away from any moderating geographic influence makes it one of Canada’s coldest permanently inhabited locations.