Winter mornings can be unpredictable — and nothing disrupts routines like a surprise school closure due to snow. That’s why I built the Snow Day Calculator 2025, a web-based tool that predicts school closures with real-time weather data, historical trends, and AI-powered analytics.
Check it out live here: Snow Day Calculator
Why I Built It
As a developer, I’ve always been fascinated by predictive analytics. Snow days are a real-world problem where data science meets everyday life:
Parents want to plan their mornings
Students hope for an extra day off
Schools need to make safe, timely closure decisions
Most weather apps only tell you how much snow will fall — not how that translates into school closures. That’s the gap I wanted to s...
Winter mornings can be unpredictable — and nothing disrupts routines like a surprise school closure due to snow. That’s why I built the Snow Day Calculator 2025, a web-based tool that predicts school closures with real-time weather data, historical trends, and AI-powered analytics.
Check it out live here: Snow Day Calculator
Why I Built It
As a developer, I’ve always been fascinated by predictive analytics. Snow days are a real-world problem where data science meets everyday life:
Parents want to plan their mornings
Students hope for an extra day off
Schools need to make safe, timely closure decisions
Most weather apps only tell you how much snow will fall — not how that translates into school closures. That’s the gap I wanted to solve.
How the Snow Day Calculator Works
The tool combines several data sources and algorithms:
Real-Time Weather Forecasts – Snowfall predictions, temperature trends, and wind chill.
Historical School Closure Data – Patterns from past storms to understand how likely schools are to close in similar conditions.
Predictive Modeling – AI/ML algorithms estimate the probability of closure based on the combined data.
The output is a simple percentage showing your school’s chance of a snow day.
Tech Stack
Front-End: HTML, CSS, JavaScript
Back-End: Node.js / Python (for predictive calculations)
Data Sources: OpenWeather API for live forecasts
Deployment: Fully responsive, works on desktop & mobile
How to Use
Visit Snow Day Calculator
Enter your city or ZIP/postal code
Select your school type (Elementary, High School, University)
Click Calculate
Instantly see your snow day probability
It’s simple, fast, and free — perfect for students, parents, and educators alike.
Lessons Learned
Building this tool taught me a lot about:
Data integration: Combining real-time APIs with historical datasets
Predictive modeling: Designing a lightweight AI model for probabilistic outputs
UX for non-technical users: Presenting complex calculations in a clear, actionable way
Next Steps
Expanding coverage beyond USA & Canada
Incorporating late-start predictions and partial closure probabilities
Adding notifications for extreme snow events
Try It Yourself
You can experiment with the tool here: https://onlinecalculators.shop/snow-day-calculator/