Greenfield, Wisconsin, 2,394 students in 5 schools

Whitnall School District Snow Day Predictor

Q: How much snow does Greenfield get?

About 37.8 inches a winter at a NOAA weather station 1.8 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 Whitnall?

12.3 inches on January 13, 2024, the largest single day at a NOAA weather station 1.8 miles away in 10 winters. The snowiest winter was 2022 to 2023, with 50.7 inches.

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

Whitnall 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 Whitnall snow day predictor work?

It reads the National Weather Service forecast for Greenfield 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 Whitnall’s own big snow morning: 5 inches, the top tenth of snowy weekday mornings at a NOAA weather station 1.8 miles away.

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

The next three school mornings

Will Whitnall close tomorrow?

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

Ten winters of school mornings

Whitnall’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 Whitnall: 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 1.8 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 Whitnall

District	Snow a winter	4 in mornings	Built in days
New Berlin School DistrictNew Berlin	37.8 in	2
Greendale School DistrictGreendale	37.8 in	2
Greenfield School DistrictGreenfield	37.8 in	2
West Allis School DistrictWest Allis	42 in	1.9
Franklin Public School DistrictFranklin	37.8 in	2	1
Muskego-Norway School DistrictMuskego	31.5 in	1.3

The schools

5 schools

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

High

Whitnall High

Middle

Whitnall Middle

Elementary

Hales Corners Elementary, Hales Corners
Edgerton Elementary, Hales Corners

Other schools

Core4

Questions

Whitnall snow day questions

How much snow does Greenfield get?

What was the biggest snow day near Whitnall?

Does Whitnall get more snow days than other Wisconsin districts?

How does the Whitnall 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.