Union, Maine, 1,782 students in 7 schools

School Administrative District 40 Snow Day Predictor

Q: How does School Administrative District 40 announce a snow day?

By email, text message, phone call, local TV and radio, and on the district’s own closings page.

Q: When is the last day of school for School Administrative District 40?

June 14, 2027, on the district’s 2026 to 2027 calendar.

Q: How much snow does Union get?

About 49.8 inches a winter at a NOAA weather station 2 miles away, averaged over 7 winters. Between December 1 and March 31 that brings 7 weekday mornings a year with 2 inches of new snow or more, and 3 with 4 inches or more.

Q: What was the biggest snow day near School Administrative District 40?

13.5 inches on January 30, 2022, the largest single day at a NOAA weather station 2 miles away in 7 winters. The snowiest winter was 2025 to 2026, with 67.9 inches.

Q: How does the School Administrative District 40 snow day predictor work?

It reads the National Weather Service forecast for Union 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 School Administrative District 40’s own big snow morning: 4.5 inches, the top tenth of snowy weekday mornings at a NOAA weather station 2 miles away.

The odds of a closing or a delay on the next three school mornings in School Administrative District 40, measured against School Administrative District 40's own big snow morning of 4.5 inches.

The next three school mornings

Will School Administrative District 40 close tomorrow?

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

The School Administrative District 40 playbook

How School Administrative District 40 calls a snow day

How families hear

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

“It provides staff and families with email, text, and phone alerts directly to the contact phone numbers and email addresses provided in Infinite Campus.”

Cancellations & Delays | Regional School Unit 40

Making up a lost day

Snow days are added after the June 14 last student day on the marked dates.

Make up dates: Jun 16, Jun 17, Jun 21, Jun 22, Jun 23.

“* snow days”

Source

The 2026 to 2027 calendar

First day September 2, 2026
Winter break Dec 23 to Jan 2
February break Feb 15 to Feb 19
Last day June 14, 2027

District calendar

Read from School Administrative District 40’s own pages on October 8, 2026; the district site is rsu40.org.

Ten winters of school mornings

School Administrative District 40’s snow record

49.8inches of snow a winter

7school mornings a winter with 2 in of new snow or more

3with 4 in or more

4.5 ina big snow morning in School Administrative District 40: the top tenth of snowy school mornings

0.7Nov

9.2Dec

16.5Jan

10.9Feb

9Mar

Average snowfall by month, inches

Biggest day 13.5 in on January 30, 2022
Snowiest winter 2025 to 2026, 67.9 in
6 in mornings 1 a winter
1 in mornings 9.1 a winter

Measured at a NOAA weather station 2 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 Maine rule

How Maine counts a lost day

Maine requires a 180 day school year with at least 175 days of instruction. The Commissioner may waive the minimum days on a school board's written application, but only after the district has tried every reasonable way to make the days up.

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

Next door

Districts near School Administrative District 40

District	Snow a winter	4 in mornings
Regional School Unit 13Rockland	49.8 in	3
Regional School Unit 12Somerville	70.5 in	4.2
Regional School Unit 71Belfast	66.8 in	3
Augusta Public SchoolsAugusta	66 in	3.7
School Administrative District 11Gardiner	63.7 in	4.1
Regional School Unit 02Hallowell	66 in	3.7

The schools

7 schools

Every school in School Administrative District 40 follows the district’s call: one closing covers them all.

High

Medomak Valley High School, Waldoboro

Middle

Medomak Middle School, Waldoboro

Elementary

Miller School, Waldoboro
Warren Community School, Warren
Union Elementary
Prescott Memorial School, Washington
Friendship Village School, Friendship

Questions

School Administrative District 40 snow day questions

How does School Administrative District 40 announce a snow day?

When is the last day of school for School Administrative District 40?

How much snow does Union get?

What was the biggest snow day near School Administrative District 40?

How does the School Administrative District 40 snow day predictor work?

How does Maine handle snow days?

More winter

More for Maine 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.Maine winter forecastThe season ahead for Maine: 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.