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.

Enter a location to check snow day probability.

Date

Location

Average Snowfall by Region in the USA and Canada

This table shows the average annual snowfall (in inches) recorded during the winter season. It is based on historical climate data from the United States and Canada.

Region	Snowfall
Syracuse, NY, USA	128.2 in
Buffalo, NY, USA	96.2 in
Anchorage, AK, USA	77.7 in
Denver, CO, USA	49 in
Salt Lake City, UT, USA	51.9 in
Erie, PA, USA	103.2 in
Portland, ME, USA	68.7 in
Quebec City, QC, Canada	118.3 in
St. John's, NL, Canada	129.7 in
Montreal, QC, Canada	81.5 in
Ottawa, ON, Canada	69.2 in
Sault Ste. Marie, ON, Canada	126.3 in
Calgary, AB, Canada	50.5 in
Winnipeg, MB, Canada	44.6 in
Halifax, NS, Canada	60.7 in

Note: The average annual snowfall figures are based on historical climate data. For the United States, this data uses NOAA’s 1991–2020 climate normals, while for Canada, it uses Environment Canada’s 1981–2010 climate normals. Actual snowfall may vary from year to year.

Snow Day Probability - How to Check

This YouTube video shows you how to check for snow day conditions using accurate weather data.

Snow Day School Closure Chances

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

1. Storm Timing: Heavy snow during the morning, like 5 AM - 8 AM is the common reason for a school closure.
2. Freezing Rain: This is a dangerous, 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.
4. Extreme Cold: In the coldest areas, schools may close if the air temperature drops below -40° F/C. Because there is a 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.