Caledonia, Ohio, 1,870 students in 5 schools

River Valley Local School District Snow Day Predictor

Q: How much snow does Caledonia get?

About 31.1 inches a winter at a NOAA weather station 14.3 miles away, averaged over 10 winters. Between December 1 and March 31 that brings 4 weekday mornings a year with 2 inches of new snow or more, and 1.1 with 4 inches or more.

Q: What was the biggest snow day near River Valley?

6.5 inches on January 26, 2026, the largest single day at a NOAA weather station 14.3 miles away in 10 winters. The snowiest winter was 2020 to 2021, with 48.5 inches.

Q: Does River Valley get more snow days than other Ohio districts?

River Valley averages 1.1 weekday mornings a winter with 4 inches of new snow or more, more than 81 percent of the 582 Ohio districts with a station record.

Q: How does the River Valley snow day predictor work?

It reads the National Weather Service forecast for Caledonia 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 River Valley’s own big snow morning: 2.6 inches, the top tenth of snowy weekday mornings at a NOAA weather station 14.3 miles away.

The odds of a closing or a delay on the next three school mornings in River Valley, measured against River Valley's own big snow morning of 2.6 inches.

The next three school mornings

Will River Valley close tomorrow?

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

Ten winters of school mornings

River Valley’s snow record

31.1inches of snow a winter

4school mornings a winter with 2 in of new snow or more

1.1with 4 in or more

2.6 ina big snow morning in River Valley: the top tenth of snowy school mornings

More 4 inch school mornings than 81% of the 582 Ohio districts with a station record.

1.7Nov

6.2Dec

11Jan

8.1Feb

2.5Mar

Average snowfall by month, inches

Biggest day 6.5 in on January 26, 2026
Snowiest winter 2020 to 2021, 48.5 in
6 in mornings 0.3 a winter
1 in mornings 7.5 a winter

Measured at a NOAA weather station 14.3 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.

The Ohio rule

How Ohio counts a lost day

Ohio requires hours, not days: 910 hours for full day kindergarten through grade 6, 1,001 hours for grades 7 to 12, 455 for half day kindergarten. Only hours that drop a school below the state minimum must be made up, by extending the school year.

The Ohio rules in the agency’s own words, and every Ohio district

Next door

Districts near River Valley

District	Snow a winter	4 in mornings
Pleasant Local School DistrictMarion	31.1 in	1.1
Mount Gilead Exempted Village School DistrictMount Gilead	31.1 in	1.1
Northmor Local School DistrictGalion	31.1 in	1.1
Galion City School DistrictGalion	21.8 in	0.8
Wynford Local School DistrictBucyrus	20.7 in	0.4
Buckeye Valley Local School DistrictDelaware	20.1 in	0.6

The schools

5 schools

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

High

River Valley High School

Middle

River Valley Middle School

Elementary

Heritage Elementary School, Marion
Liberty Elementary School

Other schools

River Valley Virtual School

Questions

River Valley snow day questions

How much snow does Caledonia get?

What was the biggest snow day near River Valley?

Does River Valley get more snow days than other Ohio districts?

How does the River Valley snow day predictor work?

How does Ohio handle snow days?

More winter

More for Ohio 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.Ohio winter forecastThe season ahead for Ohio: 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.