Question 1

How accurate is the Snow Day Calculator?

Accepted Answer

The calculator uses a weighted scoring model that mirrors how superintendents and city officials actually decide: snowfall inches (40%), ice accumulation (30%), wind chill (15%), forecast timing (10%) and ZIP-code regional policy (5%). It is an estimate, not a guarantee — always check local announcements for the official closure decision.

Question 2

What factors make a snow day more likely?

Accepted Answer

Heavy snowfall (6+ inches), ice accumulation over 0.25 inches, sub-zero wind chills, weekend timing, and overnight storms that begin before school buses start rolling all push the probability higher. Northern districts (ZIP prefixes 1xx-0xx) close at lower thresholds than southern districts (3xx-4xx).

Question 3

Does this work for any country?

Accepted Answer

Yes. While the model is calibrated against North American school closure patterns, the math applies to any region with cold-weather cancellations. Adjust the ZIP-code start digit or override the regional policy in the dropdown if you are outside the US/Canada.

Question 4

Can I share my result?

Accepted Answer

Yes. Click Share to copy a URL with your inputs pre-filled, or Copy Summary to copy a plain-text summary including the probability, top factors and final decision recommendation.

❄️ Snow Day Calculator