Snow Day Predictor Canada 2026
Estimate the chance of a snow day based on weather forecasts. Predicts school closures and work disruptions using regional thresholds. Updated for 2026 winter patterns with wind chill calculations and regional adjustments for Ontario, Quebec, BC, Prairies, and Atlantic Canada.
How the Snow Day Predictor Works
- Enter expected snowfall – 15-20+ cm typically triggers closures in most regions.
- Add temperature and wind – Extreme cold (-25°C to -30°C) and high winds create dangerous conditions.
- Select timing – Snow starting overnight gives crews time to clear; morning snow during commute is highest risk.
- Choose your region – BC closes with 10-15 cm, Prairies need 20-30+ cm due to better infrastructure.
- Get your prediction – See chance percentage and contributing factors that influenced the result.
Frequently Asked Questions
In Ontario, 15-20+ cm of snow typically triggers school closures. However, the GTA (Toronto area) may close with 10-15 cm due to traffic congestion, while northern Ontario may stay open with 20+ cm due to better snow handling infrastructure.
Most school boards close when temperatures reach -35°C to -40°C with wind chill. At these temperatures, frostbite can occur in 5-10 minutes. Some boards have specific policies: if wind chill reaches -40°C, buses may be cancelled even if schools remain open.
Yes! Wind chill is a major factor. Even with moderate snowfall, high winds create blizzard conditions with drifting snow and near-zero visibility. Wind chill also increases frostbite risk for students waiting at bus stops. Our calculator includes wind chill in the prediction.
Atlantic Canada (Newfoundland, Nova Scotia, PEI, New Brunswick) has the most snow days due to frequent nor'easters and coastal storms. British Columbia's Lower Mainland also has frequent closures because snow is rare and infrastructure isn't as prepared. The Prairies have the fewest despite heavy snow, due to excellent snow clearing infrastructure.
Universities rarely close for snow. When they do, it's usually for extreme conditions (30+ cm or -35°C wind chill). Many universities cancel only exams and classes before 10 AM, remaining open for afternoon classes after roads are cleared. Some offer online learning options instead of full closures.