Regional School District 10 Snow Day Predictor
The odds of a closing or a delay on the next three school mornings in Regional School District 10, measured against Regional School District 10's own big snow morning of 8 inches.
Will Regional School District 10 close tomorrow?
Regional School District 10’s snow record
More 4 inch school mornings than 87% of the 166 Connecticut districts with a station record.
- Biggest day 14 in on January 26, 2026
- Snowiest winter 2016 to 2017, 56 in
- 6 in mornings 1.4 a winter
- 1 in mornings 8.7 a winter
Measured at a NOAA weather station 3.1 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 Regional School District 10
| District | Snow a winter | 4 in mornings |
|---|---|---|
| Canton School DistrictCollinsville | 37.6 in | 2.4 |
| Farmington School DistrictFarmington | 37.6 in | 2.4 |
| Plymouth School DistrictTerryville | 28.4 in | 2.2 |
| Torrington School DistrictTorrington | 49.1 in | 3 |
| Bristol School DistrictBristol | 28.4 in | 2.2 |
| Avon School DistrictAvon | 37.6 in | 2.4 |
4 schools
Every school in Regional School District 10 follows the district’s call: one closing covers them all.
High
- Lewis S. Mills High School
Middle
- Har-Bur Middle School
Elementary
- Lake Garda Elementary School
- Harwinton Consolidated School, Hawrinton
Regional School District 10 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.