Windsor, Colorado, 8,458 students in 13 schools

Windsor School District RE-4 Snow Day Predictor

Q: How much snow does Windsor get?

About 36.6 inches a winter at a NOAA weather station 3.4 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 2.7 weekday mornings a year with 2 inches of new snow or more, and 1 with 4 inches or more.

Q: What was the biggest snow day near Windsor RE-4?

15.4 inches on March 14, 2021, the largest single day at a NOAA weather station 3.4 miles away in 10 winters. The snowiest winter was 2020 to 2021, with 60.9 inches.

Q: How does the Windsor RE-4 snow day predictor work?

It reads the National Weather Service forecast for Windsor 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 Windsor RE-4’s own big snow morning: 3.9 inches, the top tenth of snowy weekday mornings at a NOAA weather station 3.4 miles away.

Q: How far ahead does the Windsor RE-4 snow day predictor look?

Three school mornings, as far as the National Weather Service hourly forecast reaches. Weekends and breaks are skipped, so a Friday storm is read for Monday’s buses.

The odds of a closing or a delay on the next three school mornings in Windsor RE-4, measured against Windsor RE-4's own big snow morning of 3.9 inches.

The next three school mornings

Will Windsor RE-4 close tomorrow?

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

Ten winters of school mornings

Windsor RE-4’s snow record

36.6inches of snow a winter

2.7school mornings a winter with 2 in of new snow or more

1with 4 in or more

3.9 ina big snow morning in Windsor RE-4: the top tenth of snowy school mornings

5.2Nov

3.7Dec

6.7Jan

6.6Feb

6.3Mar

Average snowfall by month, inches

Biggest day 15.4 in on March 14, 2021
Snowiest winter 2020 to 2021, 60.9 in
6 in mornings 0.2 a winter
1 in mornings 5.1 a winter

Measured at a NOAA weather station 3.4 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.

The Colorado rule

How Colorado counts a lost day

Colorado requires at least 160 days, with 1,080 scheduled hours in secondary school and 990 in elementary. The scheduled hours can drop to 1,056 (secondary), 968 (elementary), 870 (full-day kindergarten) or 435 (half-day kindergarten) to cover conferences, staff training and closings the board judges necessary for student health, safety or welfare.

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

Next door

Districts near Windsor RE-4

District	Snow a winter	4 in mornings
Johnstown-Milliken School District RE-5JMilliken	30.1 in	0.6
Thompson School District R-2JLoveland	41.6 in	1
Greeley School District 6Greeley	26 in	0.5
Poudre School District R-1Fort Collins	56.5 in	1.9
St. Vrain Valley School District RE 1JLongmont	43.2 in	1.5
School District 27JBrighton	27 in	0.9

The schools

13 schools

Every school in Windsor RE-4 follows the district’s call: one closing covers them all.

High

Windsor High School
Severance High School, Severance
Windsor Charter Academy Early College High School

Middle

Windsor Middle School
Severance Middle School
Windsor Charter Academy Middle School

Elementary

Windsor Charter Academy Elementary School
Grandview Elementary School
Skyview Elementary School
Range View Elementary, Severance
Tozer Elementary School
Mountain View Elementary School
American Legacy Academy

Questions

Windsor RE-4 snow day questions

How much snow does Windsor get?

What was the biggest snow day near Windsor RE-4?

How does the Windsor RE-4 snow day predictor work?

How does Colorado handle snow days?

How far ahead does the Windsor RE-4 snow day predictor look?

More winter

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