❄️ Snow Day Calculator

Will schools close tomorrow? Use our free calculator powered by real NOAA historical data to predict snow day probability for any city in the US and Canada.

🎿 Calculate Your Snow Day Probability

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📊 Snow Day Prediction Results

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💡 Popular Cities: Syracuse • Buffalo • Denver • Toronto • Montreal

📅 3-Day Weather Forecast

⚠️ Forecast simulated based on historical averages. Check NWS for accurate predictions.

📚 How Our Snow Day Calculator Works

Our algorithm uses multiple data sources to provide accurate predictions

📈 Historical Data Analysis

We analyze 30+ years of NOAA climate data including average snowfall, snow days per year, and historical patterns for each city.

🌡️ Weather Conditions

Temperature, humidity, and precipitation forecasts are factored into our calculations. Data sourced from the National Weather Service.

📍 Local Factors

Elevation, latitude, proximity to lakes (lake-effect snow), and regional school closure policies all impact our predictions.

🇺🇸 Snow Day Calculator by US State

Select your state to see detailed snow data and city-specific calculators

🇨🇦 Snow Day Calculator for Canada

Select your province for accurate Canadian snow day predictions

❓ Frequently Asked Questions

How accurate is the Snow Day Calculator?

Our calculator uses official NOAA historical data spanning 1991-2020 for US cities and Environment Canada data from 1981-2010 for Canadian cities. While no prediction is 100% accurate, our algorithm considers multiple factors to provide probability estimates based on real meteorological data.

What data sources do you use?

We use data from: National Centers for Environmental Information (NCEI), National Weather Service, and Environment and Climate Change Canada.

How many inches of snow typically causes school closures?

This varies significantly by region. In the Northeast (like Buffalo, NY), schools may stay open with 6+ inches. In Southern cities like Atlanta, even 1-2 inches can cause closures. Our calculator accounts for these regional differences.

Can I check any city in the US or Canada?

We currently cover major cities in all 50 US states and all Canadian provinces. We're continuously adding more cities. If your city isn't listed, try the nearest major city for a close estimate.