Madison School District 321 snow day calculator
Will Madison School District 321 close tomorrow?
District facts
- Official name
- Madison School District 321
- Schools
- 12
- Grades
- pre-K to grade 12
- Office
- Rexburg, ID
- Snow a year
- 20 in. · 2.3 days with 3+ in.
- NCES ID
- 1601920
National Center for Education Statistics (CCD 2024–25, EDGE GRF25); NOAA 1991–2020 normals. Not affiliated with the district.
Past winter days
We record what happened on each storm day (our chance, and whether Madison School District 321 closed, delayed or opened) from parent reports. The first days appear here this winter. Report today's decision.
What it takes to close Madison School District 321
- Snow line
- About 6 in. of overnight snow
- Ice line
- About .17 in. of ice
- Cold line
- −36°F wind chill at bus time (normal winter low 9°F)
- Counties
- Madison County, Fremont County, Jefferson County, Teton County
Levels where a closure becomes likely in our model for ZIP 83440, from Madison School District 321's local snow normal: 2.3 days a year with 3 or more inches. Snow varies across the district: its ZIP codes average from 20 to 70 inches a year, so the line is higher in the snowier parts. These are model estimates, not the district's policy.
Nearby districts
| District | Snow a year | Snow line |
|---|---|---|
| Sugar-Salem Joint School District 322 | 70 in. | 11 in. |
| Jefferson County Joint School District 251 | 20 in. | 6 in. |
| Fremont County Joint School District 215 | 70 in. | 11 in. |
| Bonneville Joint School District 93 | 15 in. | 5 in. |
| Teton County School District 401 | 113 in. | 13.5 in. |
| Idaho Falls School District 91 | 15 in. | 5 in. |
ZIP codes Madison School District 321 serves
83434, 83436, 83440, 83448, 83460
ZIP codes that overlap the district's boundary (NCES EDGE GRF25). Some are shared with neighboring districts.
Check a different ZIP
Loading tonight's forecast…
Snow by hour
From the National Weather Service forecast, updated hourly. Estimate only. Your district makes the call.
Madison School District 321 snow day questions
Is Madison School District 321 closed tomorrow?
The card above shows tomorrow's chance that Madison School District 321 closes or delays school, from tonight's National Weather Service forecast for the district's area. It is an estimate; only the district can announce a closure, usually on its website, by text or phone alert, and through local TV and radio.
How much snow does it take to close Madison School District 321?
There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 6 inches of overnight snow as the level where closures become likely around ZIP 83440, which averages 20 inches of snow a year (NOAA 1991–2020 normals).
When does Madison School District 321 announce snow days?
Districts usually decide early in the morning, after crews check the roads, and sometimes the evening before when a big storm is certain. Check the district's official website and alerts for the decision; we don't report official closings.
Guides
- How much snow cancels school?
From one inch in Atlanta to a foot in Buffalo: what it takes in every state, with NOAA data.
- What time are snow days announced?
When districts decide, how they tell families, and when to check the calculator.
- How school districts decide snow days
Who makes the call, what they check before dawn, and why neighboring districts disagree.
- Snow day vs. delay vs. early dismissal
What each one means, when districts use them, and how the calculator scores each.