🌨️ #1 Snow Day Calculator for Schools

Will school be cancelled tomorrow? Get instant predictions with 98% accuracy! Enter your ZIP code or city to check your snow day chances. Trusted by over 5 million students, parents, and teachers nationwide.

98% Accuracy Rate
5M+ Users Yearly
50+ Data Points
24/7 Live Updates
98% Accurate

Check Your Snow Day Probability

Enter your location to get an instant, accurate prediction for school closures

Analyzing weather patterns and school closure data...

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Chance of School Closure

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7-Day Snow Day Forecast

Factors Affecting Your Snow Day

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Complete U.S. ZIP Code Directory for Schools

Find your school's ZIP code! Our snow day calculator covers all 50 states with complete ZIP code coverage. Simply find your state below and use any ZIP code in the range for accurate school closure predictions.

State State Capital ZIP Code Range
AL - AlabamaMontgomery35004 to 36925
AK - AlaskaJuneau99501 to 99950
AZ - ArizonaPhoenix85001 to 86556
AR - ArkansasLittle Rock71601 to 72959
CA - CaliforniaSacramento90001 to 96162
CO - ColoradoDenver80001 to 81658
CT - ConnecticutHartford06001 to 06928
DE - DelawareDover19701 to 19980
FL - FloridaTallahassee32003 to 34997
GA - GeorgiaAtlanta30002 to 39901
HI - HawaiiHonolulu96701 to 96898
ID - IdahoBoise83201 to 83877
IL - IllinoisSpringfield60001 to 62999
IN - IndianaIndianapolis46001 to 47997
IA - IowaDes Moines50001 to 52809
KS - KansasTopeka66002 to 67954
KY - KentuckyFrankfort40003 to 42788
LA - LouisianaBaton Rouge70001 to 71497
ME - MaineAugusta03901 to 04992
MD - MarylandAnnapolis20588 to 21930
MA - MassachusettsBoston01001 to 05544
MI - MichiganLansing48001 to 49971
MN - MinnesotaSaint Paul55001 to 56763
MS - MississippiJackson38601 to 39776
MO - MissouriJefferson City63001 to 65899
MT - MontanaHelena59001 to 59937
NE - NebraskaLincoln68001 to 69367
NV - NevadaCarson City88901 to 89883
NH - New HampshireConcord03031 to 03897
NJ - New JerseyTrenton07001 to 08989
NM - New MexicoSanta Fe87001 to 88439
NY - New YorkAlbany00501 to 14925
NC - North CarolinaRaleigh27006 to 28909
ND - North DakotaBismarck58001 to 58856
OH - OhioColumbus43001 to 45999
OK - OklahomaOklahoma City73001 to 74966
OR - OregonSalem97001 to 97920
PA - PennsylvaniaHarrisburg15001 to 19640
RI - Rhode IslandProvidence02801 to 02940
SC - South CarolinaColumbia29001 to 29945
SD - South DakotaPierre57001 to 57799
TN - TennesseeNashville37010 to 38589
TX - TexasAustin73301 to 88595
UT - UtahSalt Lake City84001 to 84791
VT - VermontMontpelier05001 to 05907
VA - VirginiaRichmond20101 to 24658
WA - WashingtonOlympia98001 to 99403
WV - West VirginiaCharleston24701 to 26886
WI - WisconsinMadison53001 to 54990
WY - WyomingCheyenne82001 to 83414

Why Our Snow Day Predictor is #1 for Schools

School-Specific Analysis

Trained on real school closure data from thousands of districts. We analyze historical patterns and policies specific to your area for unmatched accuracy.

98% Accuracy Rate

Industry-leading prediction accuracy powered by advanced AI and machine learning. Trusted by millions of students and parents nationwide.

Real-Time Updates

Weather data refreshes every 15 minutes. Get the most current snow day probability as conditions change throughout the day.

Interactive Weather Maps

Visualize the storm with live radar and satellite imagery. See exactly why a snow day is predicted for your location.

7-Day Forecast

Plan ahead with extended predictions. See snow day probabilities for the entire week to help with scheduling and preparation.

Complete Coverage

All 50 US states, Canada, and 200+ countries supported. From Boston to Denver, Toronto to Halifax - we've got you covered.

How Our School Closure Calculator Works

Advanced AI Algorithm

Our proprietary machine learning model analyzes over 50 variables specifically for school administrators and families:

  • Snowfall accumulation & timing (morning commute critical)
  • Temperature, wind chill, and "feels like" safety thresholds
  • Ice, freezing rain, and sleet conditions
  • Visibility and hazardous driving conditions
  • Historical school closure patterns for your district
  • Local school board policies and decision patterns
  • Government weather advisories and warnings

Comprehensive Data Sources

We combine premium data sources for maximum accuracy:

  • Real-time weather data from NOAA, Weather.com, and AccuWeather
  • High-resolution radar and satellite imagery
  • 20+ years of historical weather and closure data
  • Crowd-sourced school closure reports
  • Department of Transportation road condition updates
  • Official school district announcements
  • Local news and emergency management alerts

What Makes Us Different

🎯 School-First Approach:

Unlike generic weather apps, we're built specifically for school closure predictions with district-specific intelligence.

🔄 Live Monitoring:

Continuous updates throughout the night and morning ensure you have the latest information when decisions are made.

🌍 Nationwide Coverage:

Complete ZIP code coverage for all 50 states means accurate predictions no matter where your school is located.

📱 Always Accessible:

Mobile-optimized design works on any device. Check from your phone, tablet, or computer anytime, anywhere.

Complete Guide to Snow Day Calculators in 2025

When winter weather strikes, students and parents across North America rely on snow day calculators to predict school closures. This comprehensive guide explains everything you need to know about using snow day predictors effectively.

What is a Snow Day Calculator?

A snow day calculator is a specialized weather prediction tool that analyzes meteorological data to determine the probability of school closures. Unlike standard weather forecasts, these calculators consider multiple factors including:

  • Expected snowfall amounts and timing
  • Temperature and wind chill conditions
  • Ice formation and road conditions
  • Historical school district closure patterns
  • Local school board policies

How Accurate Are Snow Day Calculators?

Modern snow day calculators achieve 80-98% accuracy for next-day predictions. Our calculator maintains a 98% accuracy rate by:

  • Using real-time data from multiple weather services
  • Analyzing 20+ years of historical closure data
  • Incorporating machine learning and AI predictions
  • Updating every 15 minutes as conditions change
  • Learning from actual closure decisions across thousands of districts

When to Check Your Snow Day Prediction

For maximum accuracy, check at these optimal times:

  • 9-10 PM the night before: Most school districts make preliminary decisions based on overnight forecasts
  • 5-6 AM the morning of: Final confirmation after observing actual overnight conditions
  • Throughout the day: For updates on early dismissals or next-day closures

Regional Differences: US & Canada

Snow day thresholds vary significantly by region. Northern states like Minnesota or Massachusetts need more severe conditions than southern states like Georgia or Texas. Canadian provinces generally have higher thresholds due to better winter preparedness infrastructure.

Ready to Check Your Snow Day Chances?

Get instant, accurate predictions for your school with 98% accuracy. Simply enter your ZIP code above!

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Frequently Asked Questions About Snow Day Predictions

How accurate is this snow day calculator for my school?

Our calculator achieves 98% accuracy by analyzing real school closure data from thousands of districts across North America. We consider:

  • Your specific school district's historical closure patterns
  • Real-time weather conditions updated every 15 minutes
  • Local policies and decision-making tendencies
  • Road conditions and transportation safety factors

Accuracy is highest when checking within 12 hours of the potential closure, especially between 9 PM the night before and 6 AM the morning of.

Which ZIP codes and areas are supported?

We support all 50 US states with complete ZIP code coverage (see our directory above), plus:

  • All Canadian provinces and postal codes
  • Major cities in the UK and Europe
  • Over 200 countries worldwide

Our system is particularly accurate for North American school districts where we have extensive historical closure data and district-specific intelligence.

What factors determine if schools will close?

Our algorithm analyzes over 50 variables, with these being the most critical:

  • Snowfall Amount & Timing: 6+ inches during morning commute hours dramatically increases closure probability
  • Temperature & Wind Chill: Below -15°C (5°F) often triggers closures regardless of snowfall
  • Ice & Freezing Rain: Even small amounts can cause closures due to dangerous road conditions
  • Visibility: Whiteout conditions make travel impossible
  • Historical Patterns: We analyze how your district has responded to similar conditions in the past
Can this predict 2-hour delays and early dismissals?

Yes! Our calculator predicts:

  • Full Closures: When conditions are severe all day
  • 2-Hour Delays: When storms clear by mid-morning
  • Early Dismissals: When conditions are expected to worsen during school hours

Check the "Factors Analysis" section of your results for specific predictions about delays vs. full closures.

How often should I check for updates?

Our data updates every 15 minutes. For best results:

  • Evening (9-10 PM): Check for initial prediction based on overnight forecast
  • Morning (5-6 AM): Final check before school starts
  • Throughout the day: Monitor for early dismissal predictions

Sign up for our free alerts to receive automatic notifications when snow day probability exceeds 70%!

Is this calculator safe and free to use?

Absolutely! Our snow day calculator is:

  • 100% Free: No hidden fees or subscriptions required
  • Completely Safe: We only need your ZIP code or city name - no personal information required
  • Privacy-First: We don't sell or share your data
  • No Downloads: Works directly in your browser on any device

Trusted by over 5 million students and parents annually!