Denver County School District 1 Snow Day Predictor

By text message, email and phone call, and on the district’s own closings page.

2 hours: on a delay morning every school starts that much later.

June 4, 2027, on the district’s 2026 to 2027 calendar.

About 46.3 inches a winter at a NOAA weather station 1.6 miles away, averaged over 9 winters. Between December 1 and March 31 that brings 4.7 weekday mornings a year with 2 inches of new snow or more, and 2 with 4 inches or more.

11.8 inches on February 25, 2021, the largest single day at a NOAA weather station 1.6 miles away in 9 winters. The snowiest winter was 2020 to 2021, with 76.2 inches.

It reads the National Weather Service forecast for Denver 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 Denver’s own big snow morning: 4.9 inches, the top tenth of snowy weekday mornings at a NOAA weather station 1.6 miles away.

Colorado requires at least 160 days, with 1,080 scheduled hours in secondary school and 990 in elementary. The scheduled hours can drop to 1,056 (secondary), 968 (elementary), 870 (full-day kindergarten) or 435 (half-day kindergarten) to cover conferences, staff training and closings the board judges necessary for student health, safety or welfare.