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Durham, New Hampshire, 2,116 students in 5 schools

Oyster River Cooperative School District Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in Oyster River Cooperative, measured against Oyster River Cooperative's own big snow morning of 7.9 inches.

The next three school mornings

Will Oyster River Cooperative close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Durham.
The Oyster River Cooperative playbook

How Oyster River Cooperative calls a snow day

How families hear

By email, text message, phone call, the district website, local TV and radio.

“ORCSD uses ParentSquare to send email, text, and voice messages to notify parents and staff about school delays and closings.”
School Closing/Delay - Oyster River Cooperative School District | About

A 2 hour delay

On a delay morning every school starts 2 hours late.

“2-hour delay*”
Delay schedule

5 built in snow days

On the 2026 to 2027 calendar, listed as “Snow Days (5 Built in)”.

“SD Snow Days (5 Built in)”
Source

Making up a lost day

The five built in snow days are June 21 to 25, 2027; the schedule is adjusted if fewer or more than five are needed.

Make up dates: Jun 21, Jun 22, Jun 23, Jun 24, Jun 25.

“Anticipated last day for students is 6/25. The calendar allows for five school cancellation days.”
Source

The 2026 to 2027 calendar

  • First day August 31, 2026
  • Winter break Dec 24 to Jan 1
  • February break Feb 22 to Feb 26
  • Last day June 25, 2027
District calendar

Read from Oyster River Cooperative’s own pages on October 8, 2026; the district site is orcsd.org.

Ten winters of school mornings

Oyster River Cooperative’s snow record

48.4inches of snow a winter
6.1school mornings a winter with 2 in of new snow or more
3.1with 4 in or more
7.9 ina big snow morning in Oyster River Cooperative: the top tenth of snowy school mornings
4.1school mornings a winter at 0 F or colder
1.2Nov
10.6Dec
13.7Jan
11.7Feb
8.9Mar
Average snowfall by month, inches
  • Biggest day 12.4 in on March 8, 2018
  • Snowiest winter 2016 to 2017, 69.5 in
  • 6 in mornings 1.6 a winter
  • 1 in mornings 8.4 a winter

Measured at a NOAA weather station 1.5 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.

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The New Hampshire rule

How New Hampshire counts a lost day

New Hampshire requires 180 days or the required hours: 450 in kindergarten, 945 in grades 1 to 6 and 990 in grades 7 to 12. Lost time must be rescheduled with added hours before a district can ask for a waiver of the hours requirement.

The New Hampshire rules in the agency’s own words, and every New Hampshire district

Next door

Districts near Oyster River Cooperative

DistrictSnow a winter4 in morningsBuilt in days
Dover School DistrictDover48.4 in3.1
Somersworth School DistrictSomersworth56 in3
Portsmouth School DistrictPortsmouth43.5 in2.1
Exeter Regional Cooperative School DistrictExeter48 in2.8
Rochester School DistrictRochester56 in35
Raymond School DistrictRaymond52.6 in3.3
The schools

5 schools

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

High

  • Oyster River High School

Middle

  • Oyster River Middle School

Elementary

  • Mast Way School, Lee
  • Moharimet School, Madbury

Other schools

  • Oyster River Preschool Education Program
Questions

Oyster River Cooperative snow day questions

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More winter

More for New Hampshire 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.New Hampshire winter forecastThe season ahead for New Hampshire: 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.