About Snow Day Calculator

Empowering students with accurate weather-based school closure predictions across the United States

Our Mission

Snow Day Calculator was created to help students, parents, and educators across the United States make informed decisions about school attendance during winter weather events. By combining real-time weather data with advanced algorithms that consider local patterns and school district policies, we provide accurate predictions that have helped millions of families plan ahead.

Real-Time Weather Data

We use WeatherAPI.com to provide up-to-the-minute weather conditions, forecasts, and severe weather alerts for any US ZIP code.

Advanced Algorithm

Our proprietary algorithm analyzes temperature, precipitation, wind speed, visibility, and timing to calculate closure probability.

Mobile-Friendly

Access snow day predictions from any device - smartphone, tablet, or computer - with our responsive design.

Historical Analysis

We consider historical weather patterns and school closure trends to improve prediction accuracy for your region.

How Our Algorithm Works

1

Weather Data Collection

We gather current conditions and 48-hour forecasts including temperature, precipitation type and amount, wind speed, and visibility.

2

Factor Analysis

Each weather factor is weighted based on its impact on school transportation and safety, with regional adjustments for local climate patterns.

3

Risk Assessment

Our algorithm evaluates multiple scenarios including overnight accumulation, morning conditions, and storm timing relative to school hours.

4

Probability Calculation

All factors are combined to generate a percentage probability along with specific recommendations for school attendance.

What Makes Us Different

Localized Predictions

Unlike generic weather apps, we specifically focus on school closure probability with regional adjustments for different climate zones across the USA.

Educational Focus

We understand that school decisions involve more than just weather - transportation routes, student safety, and operational considerations are all factored in.

Timing Considerations

We analyze when weather events occur relative to school schedules, providing predictions for closures, delays, and early dismissals.

Reliable & Free

Our service is completely free to use with no registration required, and we're committed to maintaining high uptime and accuracy.

Data Sources & Accuracy

Our weather data is sourced from WeatherAPI.com, which aggregates information from multiple meteorological services including the National Weather Service, ensuring comprehensive and reliable forecasts. Our prediction accuracy varies by region and weather event type:

  • Heavy Snow Events (6+ inches): 85-90% accuracy
  • Ice Storms & Freezing Rain: 80-85% accuracy
  • Extreme Cold (Wind Chill): 90-95% accuracy
  • Mixed Precipitation: 75-80% accuracy

Please note that final school closure decisions are always made by local school district officials who may consider additional factors such as road conditions, staff availability, and regional policies.

Privacy & Data Protection

We take your privacy seriously. Snow Day Calculator does not store personal information, track users, or require registration. When you enter a ZIP code, we only use it to retrieve weather data for that location. No personal data is collected, stored, or shared with third parties. For complete details, please review our Privacy Policy.

Ready to Check Your Snow Day Probability?

Enter your ZIP code and get instant predictions for school closures in your area.

Try Snow Day Calculator