Greenwich School District Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in Greenwich, measured against Greenwich's own big snow morning of 5.3 inches.
Will Greenwich close tomorrow?
How Greenwich calls a snow day
When the call comes
Between 4:30 a.m. and 4:50 a.m.
“Generally, the decision is made and announced* between 4:30 a.m. and 4:50 a.m.”Source
How families hear
By phone call, email, the district website, local TV and radio.
“Do not rely on any ONE form of communication for information related to school closings, delays and/or early release. Please check phone, email, web, television and/or radio in anticipation of any changes of opening status for schools.”Emergency Alerts
A 2 hour delay
On a delay morning every school starts 2 hours late.
“GREENWICH PUBLIC SCHOOLS BELL TIMES 2026-2027 SCHOOL Start Time Dismissal Time Standard Early Release 1 Hour Delay Start Time 2 Hour Delay Start Time”Delay schedule
5 built in snow days
On the 2026 to 2027 calendar, listed as “Snow Days”.
“22 Last Day for Students (Includes 5 Snow Days)**”Source
Making up a lost day
Extra days taken from the rest of June or from April spring recess.
“** If more snow / storm days are needed, they will be taken from either the remaining days in June or from the Spring Recess in April. Please plan accordingly.”Source
The 2026 to 2027 calendar
- First day August 28, 2026
- Winter break Dec 23 to Jan 1
- February break Feb 8 to Feb 15
- Last day June 22, 2027
The board policy
“In the event of inclement weather or other causes (power outages, etc.) for the delayed opening or closing of school, the Superintendent or his/her designee will determine an appropriate and safe course of action.”Board policy
Read from Greenwich’s own pages on October 8, 2026; the district site is greenwichschools.org.
Greenwich’s snow record
- Biggest day 15.7 in on February 23, 2026
- Snowiest winter 2025 to 2026, 60.4 in
- 6 in mornings 0.9 a winter
- 1 in mornings 4.8 a winter
Measured at a NOAA weather station 8.4 miles away. Mornings are the 7 am snow reading on a weekday from December 1 through March 31, over the ten winters from 2016 to 2017 through 2025 to 2026, from NOAA GHCN Daily.
How Connecticut counts a lost day
Connecticut requires at least 180 days and 900 hours of actual school work, counting no more than 7 hours a day.
The Connecticut rules in the agency’s own words, and every Connecticut district
Districts near Greenwich
| District | Snow a winter | 4 in mornings | Built in days |
|---|---|---|---|
| Stamford School DistrictStamford | 29 in | 1.8 | |
| Darien School DistrictDarien | 29 in | 1.8 | 2 |
| New Canaan School DistrictNew Canaan | 31.8 in | 1.4 | |
| Norwalk School DistrictNorwalk | 29 in | 1.8 | |
| Westport School DistrictWestport | 29 in | 1.8 | 5 |
| Wilton School DistrictWilton | 31.8 in | 1.4 |
15 schools
Every school in Greenwich follows the district’s call: one closing covers them all.
High
- Greenwich High School
Middle
- Eastern Middle School, Riverside
- Western Middle School
- Central Middle School
Elementary
- North Mianus School, Riverside
- Riverside School, Riverside
- Glenville School
- Old Greenwich School, Old Greenwich
- North Street School
- New Lebanon School
- Cos Cob School, Cos Cob
- International School At Dundee, Riverside
- Hamilton Avenue School
- Julian Curtiss School
- Parkway School
Greenwich snow day questions
More for Connecticut snow days
The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.