BOISE — As we begin the first week in December people are talking about the snow and cold that moved through the Treasure Valley.

If you watched or attended the Boise State football game Saturday night, you definitely noticed the snow globe effect.

That weather storm prompted many questions about possible school closures.

It is hard to match the excitement a student feels when the announcement goes out that school is closed because of winter conditions.

But, for students looking for insight on how to predict when that will happen, the answer involves a lot of factors.

KTVB spoke with the Boise School District Monday to get all the details.

The number one factor they look at is safety. The easy answer to a snow day, is unsafe conditions, but what does that mean?

Ice is looked at as the most dangerous winter weather condition.

If roads are unsafe to drive on, or sidewalks are too dangerous for students to walk on, school districts heavily consider calling off school.

Other factors include how heavy snowfall is, and how cold it is outside.

"All of that goes into the overall decision-making process in making the right decision from the standpoint of safety of the students, but also the safety of the staff too so they can get to and from school safety," said Boise School District spokesman Dan Hollar.

Like other districts, Boise gets out on the roads early in the morning to take a look at conditions first hand.

They also consult with local transportation agencies, the weather bureau, and law enforcement to help make the best decision.

There is an urban legend that a certain snowfall measure that will automatically trigger a snow day.

Hollar says snowfall is considered as a factor, but there is no official amount.