Snow Day Calculator

The Snow Day Estimator is a tool that shows you the probability of snowfall and the status of school closures and openings. Simply select your country, enter your city name or zip/postal code, and click the button.

Enter a location to check snow day probability.

Date & Time

Location

Average snowfall by region in the USA and Canada

This table shows you the maximum and minimum snowfall during the winter season in inches. It is based on data from the last five years in the US and Canada.

Region	Snowfall (max)	Snowfall (min)
Syracuse, NY, USA	155 in	90 in
Buffalo, NY, USA	135 in	75 in
Anchorage, AK, USA	100 in	55 in
Denver, CO, USA	80 in	35 in
Salt Lake City, UT, USA	70 in	40 in
Erie, PA, USA	145 in	70 in
Portland, ME, USA	95 in	45 in
Quebec City, QC, Canada	150 in	100 in
St. John's, NL, Canada	160 in	105 in
Montreal, QC, Canada	110 in	65 in
Ottawa, ON, Canada	115 in	70 in
Sault Ste. Marie, ON, Canada	150 in	95 in
Calgary, AB, Canada	75 in	30 in
Winnipeg, MB, Canada	65 in	40 in
Halifax, NS, Canada	105 in	60 in

Checking Snow Day Probability: Step-by-Step Guide

This youtube video tutorial shows you how to check the of a snow day using correct weather data and prediction indicators. Each step is explained in a simple way, including snowfall forecasts, temperature trends, overnight freezing conditions, and the probability of local school closures.

How to Know the Possibility of School Closures on Snowy days

The decision is made by school officials or the superintendent before 5 am. But, generally it depends on the circumstances given below.

1. Timing of the Storm: Heavy snow during the morning, like 5 AM - 8 AM is the common reason for a school closure. Schools are less likely to close if an overnight storm ends by 3 a.m. because that’s easier for road construction crews to manage.
2. Freezing Rain: This is a dangerous situation, as a thin layer of ice is more dangerous than several inches of snow because it makes roads slippery for buses, cars and pedestrians.
3. Wind and Visibility: Heavy snowfall and winds make travel unsafe, no matter how clear the roads are. This is a major factor in rural and open areas.
4. Extreme Cold: In the coldest areas, schools may close if the air temperature drops below -40° F/C. Because children can be at risk of frostbite while waiting for the bus.

How accurate is our snow day prediction

Our snow day predictions are based on the OpenWeatherMap data source, which provides temperature, snowfall, wind speed and historical data. We strive for accuracy, but our estimates should be used as a guide rather than a guarantee.

Disclaimer:

This snow day calculator provides estimates based on historical data and current weather conditions. The final decision for school closures always rests with school administrators and local authorities.