Greendale, Wisconsin, 2,609 students in 6 schools

Greendale School District Snow Day Predictor

Q: How much snow does Greendale get?

About 37.8 inches a winter at a NOAA weather station 1.6 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 3.6 weekday mornings a year with 2 inches of new snow or more, and 2 with 4 inches or more.

Q: What was the biggest snow day near Greendale?

12.3 inches on January 13, 2024, the largest single day at a NOAA weather station 1.6 miles away in 10 winters. The snowiest winter was 2022 to 2023, with 50.7 inches.

Q: Does Greendale get more snow days than other Wisconsin districts?

Greendale averages 2 weekday mornings a winter with 4 inches of new snow or more, more than 55 percent of the 412 Wisconsin districts with a station record.

Q: How does the Greendale snow day predictor work?

It reads the National Weather Service forecast for Greendale 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 Greendale’s own big snow morning: 5 inches, the top tenth of snowy weekday mornings at a NOAA weather station 1.6 miles away.

The odds of a closing or a delay on the next three school mornings in Greendale, measured against Greendale's own big snow morning of 5 inches.

The next three school mornings

Will Greendale close tomorrow?

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

Ten winters of school mornings

Greendale’s snow record

37.8inches of snow a winter

3.6school mornings a winter with 2 in of new snow or more

2with 4 in or more

5 ina big snow morning in Greendale: the top tenth of snowy school mornings

11.5school mornings a winter at 0 F or colder

More 4 inch school mornings than 55% of the 412 Wisconsin districts with a station record.

3.7Nov

4.8Dec

12.6Jan

8.2Feb

6.4Mar

Average snowfall by month, inches

Biggest day 12.3 in on January 13, 2024
Snowiest winter 2022 to 2023, 50.7 in
6 in mornings 0.8 a winter
1 in mornings 5.4 a winter

Measured at a NOAA weather station 1.6 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 Wisconsin rule

How Wisconsin counts a lost day

Wisconsin requires hours, not days: 437 for kindergarten, 1,050 for grades 1 to 6 and 1,137 for grades 7 to 12.

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

Next door

Districts near Greendale

District	Snow a winter	4 in mornings	Built in days
Greenfield School DistrictGreenfield	37.8 in	2
Franklin Public School DistrictFranklin	37.8 in	2	1
Whitnall School DistrictGreenfield	37.8 in	2
Oak Creek-Franklin School DistrictOak Creek	41.3 in	1.6
West Allis School DistrictWest Allis	42 in	1.9
New Berlin School DistrictNew Berlin	37.8 in	2

The schools

6 schools

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

High

Greendale High

Middle

Greendale Middle

Elementary

Highland View Elementary
Canterbury Elementary
College Park Elementary

Other schools

Time 4 Learning Charter School

Questions

Greendale snow day questions

How much snow does Greendale get?

What was the biggest snow day near Greendale?

Does Greendale get more snow days than other Wisconsin districts?

How does the Greendale snow day predictor work?

How does Wisconsin handle snow days?

More winter

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