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Leonardtown, Maryland, 17,223 students in 27 schools

St. Marys County Public Schools Snow Day Predictor

The odds of a closing or a delay on the next three school mornings in St. Marys, measured against St. Marys's own big snow morning of 5.7 inches.

The next three school mornings

Will St. Marys close tomorrow?

Reading the National Weather Service forecast for the overnight and the bus hours in Leonardtown.
The St. Marys playbook

How St. Marys calls a snow day

When the call comes

Radio and TV are notified before 6:00 a.m.; early dismissal decisions generally by 10:00 a.m.

“Radio and television stations will be notified before 6:00 a.m. so that this information may be broadcast as early as possible.”
Source

How families hear

By the district website, social media, phone call, local TV and radio.

“Radio and television stations will be notified before 6:00 a.m. so that this information may be broadcast as early as possible.”
School Closing Information

A 2 hour delay

On a delay morning every school starts 2 hours late.

“In the event that the opening of schools is delayed two hours to permit buses to run their routes under safer conditions, the following will apply: All buses will run their routes two hours later than their usual times.”
Delay schedule

3 built in snow days

On the 2026 to 2027 calendar, listed as “inclement weather days”.

“June 16 Two Hour Early Dismissal – Last Day for Students Grades K-12, End of 4th Marking Period (47 days) and 2nd Semester (94 days), (including 3 inclement weather days)”
Source

Making up a lost day

Three days at the end of the year, then the calendar's possible make-up days (January 29, February 15, March 29); holidays, spring break or added June days after that.

“Inclement weather and emergency school closing make-up alternatives include three days at the end of the year and other days noted as possible make-up days in the calendar.”
Source

The 2026 to 2027 calendar

  • First day August 26, 2026
  • Winter break Dec 21 to Jan 1
  • Last day June 16, 2027
District calendar

Read from St. Marys’s own pages on October 8, 2026; the district site is smcps.org.

Ten winters of school mornings

St. Marys’s snow record

9.2inches of snow a winter
1.4school mornings a winter with 2 in of new snow or more
0.7with 4 in or more
5.7 ina big snow morning in St. Marys: the top tenth of snowy school mornings

More 4 inch school mornings than 67% of the 24 Maryland districts with a station record.

0Nov
1.4Dec
4.4Jan
2.7Feb
0.8Mar
Average snowfall by month, inches
  • Biggest day 10 in on February 12, 2025
  • Snowiest winter 2024 to 2025, 22 in
  • 6 in mornings 0.3 a winter
  • 1 in mornings 2.1 a winter

Measured at a NOAA weather station under a mile 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 Maryland rule

How Maryland counts a lost day

Maryland requires at least 180 school days and 1,080 hours within 10 months, with days of at least 3 hours. On a county board's application showing it tried to comply, the State Board may shorten the year when severe weather or a disaster prevented normal attendance, without cutting state or local funding.

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

Next door

Districts near St. Marys

DistrictSnow a winter4 in morningsBuilt in days
Calvert County Public SchoolsPrince Frederick8.3 in0.4
Charles County Public SchoolsLa Plata8.9 in0.56
Dorchester County Public SchoolsCambridge9.5 in0.5
Prince George's County Public SchoolsUpper Marlboro7.1 in0.33
Talbot County Public SchoolsEaston9.5 in0.5
Anne Arundel County Public SchoolsAnnapolis10.6 in0.53
The schools

27 schools

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

High

  • Leonardtown High
  • Great Mills High, Great Mills
  • Chopticon High, Morganza
  • Dr. James A. Forrest Career and Technology Center

Middle

  • Spring Ridge Middle, Lexington Park
  • Leonardtown Middle
  • Margaret Brent Middle, Mechanicsville
  • Esperanza Middle, Lexington Park

Elementary

  • Evergreen Elementary School, California
  • Chesapeake Charter School, Lexington Park
  • Captain Walter Francis Duke Elementary
  • Park Hall Elementary, Park Hall
  • Benjamin Banneker Elementary, Loveville
  • Green Holly Elementary School, Lexington Park
  • Leonardtown Elementary
  • George Washington Carver Elementary, Great Mills
  • Lettie Marshall Dent Elem, Mechanicsville
  • Piney Point Elementary, Tall Timbers
  • Dynard Elementary, Chaptico
  • Hollywood Elementary, Hollywood
  • Lexington Park Elementary, Lexington Park
  • Greenview Knolls Elementary, Great Mills
  • Oakville Elementary, Mechanicsville
  • Mechanicsville Elementary, Mechanicsville
  • White Marsh Elementary, Mechanicsville
  • Town Creek Elementary, Lexington Park
  • Ridge Elementary, Ridge
Questions

St. Marys snow day questions

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More winter

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