Granby, Connecticut, 1,742 students in 4 schools

Granby School District Snow Day Predictor

Q: How much snow does Granby get?

About 42.4 inches a winter at a NOAA weather station 5.1 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 4.7 weekday mornings a year with 2 inches of new snow or more, and 2.6 with 4 inches or more.

Q: What was the biggest snow day near Granby?

14.5 inches on January 26, 2026, the largest single day at a NOAA weather station 5.1 miles away in 10 winters. The snowiest winter was 2016 to 2017, with 65.9 inches.

Q: Does Granby get more snow days than other Connecticut districts?

Granby averages 2.6 weekday mornings a winter with 4 inches of new snow or more, more than 90 percent of the 166 Connecticut districts with a station record.

Q: How does the Granby snow day predictor work?

It reads the National Weather Service forecast for Granby through the night and the 5 to 8 am bus run, adds winter alerts and the Winter Storm Severity Index, and measures the snow against Granby’s own big snow morning: 5.6 inches, the top tenth of snowy weekday mornings at a NOAA weather station 5.1 miles away.

The odds of a closing or a delay on the next three school mornings in Granby, measured against Granby's own big snow morning of 5.6 inches.

The next three school mornings

Will Granby close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Granby.

Ten winters of school mornings

Granby’s snow record

42.4inches of snow a winter

4.7school mornings a winter with 2 in of new snow or more

2.6with 4 in or more

5.6 ina big snow morning in Granby: the top tenth of snowy school mornings

More 4 inch school mornings than 90% of the 166 Connecticut districts with a station record.

1.1Nov

8.9Dec

11Jan

12Feb

7.2Mar

Average snowfall by month, inches

Biggest day 14.5 in on January 26, 2026
Snowiest winter 2016 to 2017, 65.9 in
6 in mornings 1.4 a winter
1 in mornings 6.7 a winter

Measured at a NOAA weather station 5.1 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.

The Connecticut rule

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

Next door

Districts near Granby

District	Snow a winter	4 in mornings
Simsbury School DistrictSimsbury	38.9 in	1.9
Suffield School DistrictSuffield	26.1 in	1.1
Windsor Locks School DistrictWindsor Locks	38.9 in	1.9
Bloomfield School DistrictBloomfield	24.8 in	1.7
East Windsor School DistrictEast Windsor	38.9 in	1.9
Avon School DistrictAvon	37.6 in	2.4

The schools

4 schools

Every school in Granby follows the district’s call: one closing covers them all.

High

Granby Memorial High School

Middle

Granby Memorial Middle School

Elementary

Kelly Lane Primary School
Wells Road Intermediate School

Questions

Granby snow day questions

How much snow does Granby get?

What was the biggest snow day near Granby?

Does Granby get more snow days than other Connecticut districts?

How does the Granby snow day predictor work?

How does Connecticut handle snow days?

More winter

More for Connecticut snow days

Snow day predictorClosing and delay odds for any ZIP, with the snowiest districts in the country.Snow depth mapHow much snow is on the ground right now, measured, across the country.First snow datesWhen the first measurable snow usually lands where you live.Frozen pipesThe nights cold enough to freeze a pipe, and what to do before one.Snow plow trackerWhere the plows are during a storm, city by city.Connecticut winter forecastThe season ahead for Connecticut: snowfall, cold and the first snow.

A residential street under deep snow on a bright blue morning, cars parked along the curb buried into smooth white mounds, one set of tire tracks down the middle — The morning after a big one: cars buried to the mirrors and one set of tracks down the middle. A street like this is a closing, no debate. Photo, Fairfax, Virginia, January 2016: Jarek Tuszyński, CC BY 4.0

The odds are a forecast read, and the superintendent makes the call: the district’s own announcement is the one to follow.