snow day calculator

Snow Day Calculator

Tomorrow's Date:
Snow Day Likelihood: 0%

Snow Day Calculator Instructions

Enter your 5-digit US ZIP code to calculate the likelihood of a snow day tomorrow in your area.

How It Works

The calculator combines two main factors to determine the likelihood of a snow day:

  • Base Score: Calculated from your location and the current month
    • Winter months have higher base scores
    • Northern states and high-snowfall regions get higher location multipliers
  • Weather Score: A secret formula that considers:
    • Temperature and wind chill factors
    • Current precipitation and its type
    • Atmospheric conditions and cloud patterns
    • Local weather patterns and historical data
    • Real-time weather observations

Understanding the Results

The final percentage indicates the likelihood of a snow day:

  • 0-25%: Very unlikely - normal school day expected
  • 26-50%: Possible but not likely - monitor conditions
  • 51-75%: Good chance - prepare for possible snow day
  • 76-99%: Very likely - high probability of school closure