St. Charles Community Unit School District 303 snow day calculator
Will St. Charles Community Unit School District 303 close tomorrow?
District facts
- Official name
- St. Charles Community Unit School District 303
- Schools
- 18
- Grades
- pre-K to grade 12
- Office
- Saint Charles, IL
- Official site
- www.d303.org
- Snow a year
- 46 in. · 5.6 days with 3+ in.
- NCES ID
- 1737170
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 St. Charles Community Unit School District 303 closed, delayed or opened) from parent reports. The first days appear here this winter. Report today's decision.
What it takes to close St. Charles Community Unit School District 303
- Snow line
- About 8.5 in. of overnight snow
- Ice line
- About .19 in. of ice
- Cold line
- −26°F wind chill at bus time (normal winter low 19°F)
- Counties
- Kane County, DuPage County, Cook County
Levels where a closure becomes likely in our model for ZIP 60174, from St. Charles Community Unit School District 303's local snow normal: 5.6 days a year with 3 or more inches. Snow varies across the district: its ZIP codes average from 32 to 46 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 |
|---|---|---|
| Geneva Community Unit School District 304 | 46 in. | 8.5 in. |
| West Chicago School District 33 | 46 in. | 8.5 in. |
| Batavia Unit School District 101 | 28 in. | 7.5 in. |
| School District U-46 | 32 in. | 6.5 in. |
| Community Consolidated School District 93 | 34 in. | 6.5 in. |
| Community Unit School District 200 | 24 in. | 6.5 in. |
ZIP codes St. Charles Community Unit School District 303 serves
60119, 60120, 60174, 60175, 60177, 60183, 60184, 60185
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.
St. Charles Community Unit School District 303 snow day questions
Is St. Charles Community Unit School District 303 closed tomorrow?
The card above shows tomorrow's chance that St. Charles Community Unit School District 303 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 St. Charles Community Unit School District 303?
There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 9 inches of overnight snow as the level where closures become likely around ZIP 60174, which averages 46 inches of snow a year (NOAA 1991–2020 normals).
When does St. Charles Community Unit School District 303 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.