Nampa School District 131 Snow Day Predictor

Nampa announces closings 5:30-6 a.m.; the district must decide by 5:30 a.m, by its own published protocol.

By social media and the district website, and on the district’s own closings page.

May 27, 2027, on the district’s 2026 to 2027 calendar.

About 16.5 inches a winter at a NOAA weather station 11.2 miles away, averaged over 9 winters. Between December 1 and March 31 that brings 2.3 weekday mornings a year with 2 inches of new snow or more, and 0.2 with 4 inches or more.

6.2 inches on January 14, 2024, the largest single day at a NOAA weather station 11.2 miles away in 9 winters. The snowiest winter was 2016 to 2017, with 36.5 inches.

It reads the National Weather Service forecast for Nampa 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 Nampa’s own big snow morning: 2.6 inches, the top tenth of snowy weekday mornings at a NOAA weather station 11.2 miles away.

Idaho requires at least 990 instructional hours for grades 9 to 12, 900 for grades 4 to 8, 810 for grades 1 to 3 and 450 for kindergarten. With local board approval, up to 11 hours of emergency closures for bad weather or facility failures can come off the yearly hours requirement.