The odds of a closing or a delay on the next three school mornings in Superior, measured against Superior's own big snow morning of 4.6 inches.
The next three school mornings
Will Superior close tomorrow?
Reading the National Weather Service forecast for the overnight and the bus hours in Superior.
Ten winters of school mornings
Superior’s snow record
42.2inches of snow a winter
6.8school mornings a winter with 2 in of new snow or more
1.8with 4 in or more
4.6 ina big snow morning in Superior: the top tenth of snowy school mornings
17.9school mornings a winter at 0 F or colder
4.6Nov
10Dec
8.7Jan
11.5Feb
6.2Mar
Average snowfall by month, inches
Biggest day 12 in on February 7, 2019
Snowiest winter 2022 to 2023, 68 in
6 in mornings 0.9 a winter
1 in mornings 9.6 a winter
Measured at a NOAA weather station 2.3 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 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.
Every school in Superior follows the district’s call: one closing covers them all.
High
Superior High
Middle
Superior Middle
Elementary
Northern Lights Elementary
Great Lakes Elementary
Cooper Elementary
Bryant Elementary
Four Corners Elementary
Lake Superior Elementary
Other schools
Superior Community Preschool
Questions
Superior snow day questions
About 42.2 inches a winter at a NOAA weather station 2.3 miles away, averaged over 9 winters. Between December 1 and March 31 that brings 6.8 weekday mornings a year with 2 inches of new snow or more, and 1.8 with 4 inches or more.
12 inches on February 7, 2019, the largest single day at a NOAA weather station 2.3 miles away in 9 winters. The snowiest winter was 2022 to 2023, with 68 inches.
It reads the National Weather Service forecast for Superior 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 Superior’s own big snow morning: 4.6 inches, the top tenth of snowy weekday mornings at a NOAA weather station 2.3 miles away.
Wisconsin requires hours, not days: 437 for kindergarten, 1,050 for grades 1 to 6 and 1,137 for grades 7 to 12.
If a district offers make-up instruction virtually on a weather closure, those hours can count; the rule sets no cap on such days.
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.
