Katonah-Lewisboro Union Free School District snow day calculator
Will Katonah-Lewisboro Union Free School District close tomorrow?
District facts
- Official name
- Katonah-Lewisboro Union Free School District
- Schools
- 5
- Grades
- kindergarten to grade 12
- Office
- Cross River, NY
- Official site
- www.klschools.org
- Snow a year
- 40 in. · 5.2 days with 3+ in.
- NCES ID
- 3616080
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 Katonah-Lewisboro Union Free 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 Katonah-Lewisboro Union Free School District
- 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)
- County
- Westchester County
Levels where a closure becomes likely in our model for ZIP 10518, from Katonah-Lewisboro Union Free School District's local snow normal: 5.2 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 |
|---|---|---|
| Ridgefield School District CT | 49 in. | 8.5 in. |
| Bedford Central School District | 34 in. | 7.5 in. |
| New Canaan School District CT | 34 in. | 7.5 in. |
| Danbury School District CT | 49 in. | 8.5 in. |
| Yorktown Central School District | 40 in. | 8.5 in. |
| Chappaqua Central School District | 40 in. | 8.5 in. |
ZIP codes Katonah-Lewisboro Union Free School District serves
10507, 10518, 10526, 10536, 10576, 10590, 10597
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.
Katonah-Lewisboro Union Free School District snow day questions
Is Katonah-Lewisboro Union Free School District closed tomorrow?
The card above shows tomorrow's chance that Katonah-Lewisboro Union Free 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 Katonah-Lewisboro Union Free School District?
There is no fixed number: the district weighs snow totals, ice, wind chill, road crews and timing. Our model treats about 8 inches of overnight snow as the level where closures become likely around ZIP 10518, which averages 40 inches of snow a year (NOAA 1991–2020 normals).
When does Katonah-Lewisboro Union Free 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.
- Lake-effect snow and school closings
Why one Great Lakes town gets a foot and the next gets flurries, and how much it takes to close snowbelt schools.
- 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.