Sioux City Comm School District snow day calculator
Will Sioux City Comm School District close tomorrow?
District facts
- Official name
- Sioux City Comm School District
- Schools
- 21
- Grades
- pre-K to grade 12
- Office
- Sioux City, IA
- Official site
- www.siouxcityschools.org
- Snow a year
- 36 in. · 3.4 days with 3+ in.
- NCES ID
- 1926400
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 Sioux City Comm School District closed, delayed or opened) from parent reports. The first days appear here this winter. Report today's decision.
What it takes to close Sioux City Comm School District
- Snow line
- About 7 in. of overnight snow
- Ice line
- About .18 in. of ice
- Cold line
- −32°F wind chill at bus time (normal winter low 13°F)
- Counties
- Woodbury County, Plymouth County
Levels where a closure becomes likely in our model for ZIP 51101, from Sioux City Comm School District's local snow normal: 3.4 days a year with 3 or more inches. These are model estimates, not the district's policy.
Nearby districts
| District | Snow a year | Snow line |
|---|---|---|
| South Sioux City Community Schools NE | 36 in. | 7 in. |
| Le Mars Comm School District | 31 in. | 7 in. |
| Sioux Center Comm School District | 35 in. | 7.5 in. |
| Yankton School District 63-3 SD | 38 in. | 8 in. |
| Norfolk Public Schools NE | 26 in. | 6.5 in. |
| Storm Lake Comm School District | 36 in. | 8 in. |
ZIP codes Sioux City Comm School District serves
51101, 51103, 51104, 51105, 51106, 51108, 51109
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.
Sioux City Comm School District snow day questions
Is Sioux City Comm School District closed tomorrow?
The card above shows tomorrow's chance that Sioux City Comm School District 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 Sioux City Comm School District?
There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 7 inches of overnight snow as the level where closures become likely around ZIP 51101, which averages 36 inches of snow a year (NOAA 1991–2020 normals).
When does Sioux City Comm School District 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.