West Chicago School District 33 Snow Day Predictor

About 32.3 inches a winter at a NOAA weather station 5.9 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 4.2 weekday mornings a year with 2 inches of new snow or more, and 0.9 with 4 inches or more.

8 inches on January 31, 2021, the largest single day at a NOAA weather station 5.9 miles away in 10 winters. The snowiest winter was 2018 to 2019, with 55.5 inches.

West Chicago averages 0.9 weekday mornings a winter with 4 inches of new snow or more, more than 79 percent of the 788 Illinois districts with a station record.

It reads the National Weather Service forecast for West Chicago 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 West Chicago’s own big snow morning: 3.3 inches, the top tenth of snowy weekday mornings at a NOAA weather station 5.9 miles away.

Illinois requires a calendar of at least 185 days to guarantee 176 days of actual student attendance, each of at least 5 clock hours. The extra calendar days are emergency days used first; after they are gone, the State Superintendent may excuse days lost to an act of God or a hazard beyond the district's control without cutting state aid.