New Jersey Snow Day Calculator

The calculator above is preset for New Jersey. Newark averages 31.5 inches of snow a year (1991–2020 normals), which puts New Jersey in our regular-snow group. For a public school in an average suburban district, the model needs about 6 inches of overnight snow before the chance of a closure reaches 50%. Enter your ZIP code to load the National Weather Service forecast, or change the snow tolerance if your town gets much more or less snow than Newark.

New Jersey snow day facts at a glance

How much snow closes school in New Jersey? (model estimate)

Computed with the calculator’s formula for a regular-snow area: public school, average district, no ice, no extreme cold, no timing boost.

Ice changes the picture quickly: in the model, 0.1 inch of freezing rain alone gives about 37% closure odds here, and 0.25 inch about 90%. A morning wind chill of -25°F gives 50% from cold alone. Heavy snow between midnight and 6 a.m. counts 25% more, because it is still falling when districts decide around 4–6 a.m.

Reported thresholds and cold-day policies in New Jersey

We did not find a published district snow or cold threshold for New Jersey that we could source, so the calculator uses the regular-snow defaults: about 6 inches of overnight snow, 0.12 inch of ice or a -25°F wind chill for even odds. Use the district style setting if your district is known for closing early or staying open.

Remote learning days in New Jersey

N.J.S.A. 18A:7F-9(b): approved virtual/remote days count toward the 180 days only when schools close for more than 3 consecutive school days due to a declared state of emergency, a public health emergency, or a health-agency directive. Not a general snow-day substitute. No numeric cap in statute. So for an ordinary one-day storm, a closure in New Jersey normally means a traditional snow day, and the calculator does not estimate a remote-day chance. (statute↗)

Minimum school year in New Jersey

The Education Commission of the States’ 2023 comparison lists these minimums for New Jersey (they may not reflect later legislation):

• Days: 180
• Instructional hours: Not specified

Days lost to closures count against that minimum, which is why districts that use up their snow days typically add make-up days at the end of the year — and why remote-day rules matter.

Where to check official closures

Only your district can close school. Check its website, app or text and email alerts first. We don’t list district links for New Jersey because we haven’t verified them; this page and its calculator are an estimate, not an announcement.