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Calendar of STEM-related seasonal events and holidays

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Ideas for incorporating STEM content into holidays, seasons, annual events, and special programming throughout the year.

Please also visit our Big STEM Celebrations collection of resources arranged by theme rather than date


 

Ideas for All Seasons

Thumbnail for winter showing snow

WINTER

Snow, Snowflakes, January, and February

Thumbnail for spring showing flowers

SPRING

March, April, and May

Summer thumbnail showing green trees

SUMMER

Sun, Sand, Summer Camp, June, July, and August

Fall thumbnail showing leaves

FALL

Back to School, September, October, November, and December

Jump to Other Special Events and Past Events

 


Year Long Events
 

2026 Year Long Events

2028 Year Long Events


Photo of a solar eclipse

Celestial Events

Meteor showers, lunar eclipses, full moons, planetary events, and more!

What's up this month

Celestial Calendars

Solar Eclipse - upcoming visible in North America

Lunar Eclipses - upcoming visible in North America 


Birthdays



 

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WINTER

Snow and Snowflakes:


January

National Mentoring Month (January)

New Year's Day (January 1) 

  • An opportunity to imagine the future of science, technology, and society (as well as reflect on past predictions)
  • NISE Network activities and programs exploring societal aspects of STEM and futures thinking 
    https://www.nisenet.org/society

National Science Fiction Day (January 2) 

National Bird Day (January 5)

National Static Electricity Day (January 9)

Martin Luther King Day (third Monday in January)

Museum Selfie Day (third Wednesday in January) (January 21, 2026)

Radon Awareness Week (last week in January)

International Day of Education (January 24)

Crayola Creativity Week (last week in January) (January 26- February 1, 2026)


February

Black History Month / African-American History Month (February) celebrate people in STEM

Winter Olympics (February, every four years, 2026, 2030, 2034)

Groundhog Day (February 2)

  • Use Exploring Earth: Bear's Shadow activity to make and experiment with shadows
  • STEM topics to explore include: signs of spring (animals emerging from hibernation), signs of winter (clear, cold days), and seasons (February 2 lies midway between the winter solstice and the spring equinox)
  • NASA Space Place seasons resources https://spaceplace.nasa.gov/seasons/en/

International Day of Women and Girls in Science (February 11)

National Inventors Day (February 11)

World Radio Day (February 13)

Valentine's Day (February 14) 

Digital Learning Day (mid-February) (February 12, 2026) 

Galileo Day (February 15th)

National Battery Day (February 18)

Engineers Week (Third week in February) 

Introduce a Girl to Engineering Day (During third week in February)

Great Backyard Bird Count (mid-February)

Darwin Day (February 12) 

Leap Day (February 29) (every four years)


 

Thumbnail for spring showing flowers

SPRING


March

Women's History Month (March)celebrate people in STEM
International Women's Day (March 8)

Severe Weather Awareness Weeks (March, dates vary by state)
Severe weather may include flood, fire, lightning, hurricane, tornados, tsunami, earthquake, heat, and cold

World Futures Day - Young Voices (March 1)

Lunar Eclipse (March 2, 2026)

Dr. Seuss Day (March 2) 

World Wildlife Day (March 3)

World Engineering Day for Sustainable Development (March 4)

Groundwater Awareness Week (second full week in March)

Brain Awareness Week (mid-March)

International Day of Mathematics (March 14)

Pi Day (March 14)

National Learn about Butterflies Day (March 14)

National Ag Day (mid-March)

Civic Learning Week (mid-March)

Spring Equinox (March 19 or 20 in the Northern Hemisphere)

World Water Day (March 22)

World Meteorology Day (March 23)

National AI Literacy Day (late-March) (March 27, 2026) 

Earth Hour (late-March) 

NanoDays (last weekend in March - first weekend in April)

  • 2026: March 28-April 5, 2026
  • 2027: March 27-April 4, 2027
  • 2028: March 25-April 2, 2028
  • 2029: March 24-April 1, 2029
  • 2030: March 30-April 7, 2030
  • NanoDays activities can be used anytime throughout the year
  • NanoDays activities and resources http://www.nisenet.org/nanodays
  • NISE Network size, scale, & measurement resources https://www.nisenet.org/size

April

Citizen Science Month (April) 

National Kite Month (April)

National Poetry Month (April)

Global Astronomy Month (April) 

Mathematics and Statistics Awareness Month (April)

National Arab American Heritage Month (April) celebrate people in STEM

Star Trek First Contact Day (April 5)

National Robotics Week / RoboWeek (second week in April) (April 4-12, 2026)

National Public Health Week (first full week in April) / World Health Day (April 7) 

Worldwide Climate Justice Month (April)

Week of the Young Child (early-mid April)

Yuri's Night (April 12)

International Dark Sky Week (early-mid April)

World Quantum Day (April 14)

World Art Day (April 15)

National Week of Conversation (mid-April) 

AI Week (mid-April) (April 13-17, 2026)

World Creativity and Innovation Day (April 21) 

Earth Day (April 22) & Environmental Education Week

DNA Day (April 25)

World Malaria Day (April 25)

National Apprenticeship Week (last week in April) (April 26-May 2, 2026, April 25 – May 1, 2027, April 23 – April 29, 2028)

Arbor Day (last Friday in April, dates vary by state)


May

Asian American and Pacific Islander Month (May) - celebrate people in STEM


National Wildfire Awareness Month (May)

National Physical Fitness and Sports Month (May)

National Bike Month (May) 
National Ride A Bike Day (first Sunday in May), Bike to Work Week ( mid-May)

Air Quality Awareness Week (first week of May)

Black Hole Week (first week of May) 

May the Fourth Be With You - Star Wars Day (May 4)

National Astronaut Day (May 5)

National Children’s Book Week (early May) 

International Day of Planetariums (May 7) 

The first planetarium projector was unveiled in Germany in October 1923 and the first planetarium opened to the public on May 7, 1925, when the Deutsches Museum opened in Munich.

International Day of Light (May 16)

National Public Works Week (mid-May)

International Museum Day (May 18)

Global Accessibility Awareness Day (GAAD) (mid-May) 
The purpose of GAAD is to get everyone talking, thinking and learning about digital access/inclusion and people with different disabilities.

Endangered Species Day (third Friday in May)

National Paper Airplane Day (May 26)


 

Summer thumbnail showing green trees

SUMMER

Summer Camp Resources

Outside Activities

Summer Reading

Sun and Sand


June

Pride Month (June) - celebrate people in STEM

Lightning Safety Awareness Week (June)

National Dairy Month (June)

International Nature Journaling Week (first week in June) 

World Environment Day (June 5)

World Oceans Day (June 8)

International Day of Play (June 11)

Juneteenth (June 19) - celebrate people in STEM

Summer Solstice (June 20 or 21 in the Northern Hemisphere)

National Selfie Day (June 21)

National Week of Making (June 17-23)

International Women in Engineering Day (June 23)

National Mosquito Control Awareness Week - Fight the Bite (last full week in June)

Tau Day (June 28)

  • Related to Pi Day (March 14) Tau is the ratio of the circumference of a circle to its RADIUS, approximately 6.28, or 2 times Pi.
  • NISE Network size, scale, & measurement resources https://www.nisenet.org/size

Asteroid Day (June 30)


July

Plastic Free July (July)

Flush Smart Month (July)

Summer Olympics (July-August, every four years, 2028, 2032, 2036)

National Ice Cream Day (July 18)

Moon Landing - anniversary of Apollo 11 first step on the Moon July 20, 1969 (July 20)

World Brain Day (July 22)

National Intern Day (Last Thursday of July)

 


August

Perseid Meteor Shower (August)

  • The Perseids are the most popular meteor shower as they peak on warm August nights as seen from the Northern Hemisphere
  • NISE Network Asteroids, Comets, Meteors, and Meteorites resources https://www.nisenet.org/asteroids

National Immunization Awareness Month (August)

National Sand Castle Day (first Saturday of August)

International Infinity Day (August 8)

World Photography Day (August 19)

National Aviation Day (August 19)

National Radio Day (August 20)

World Mosquito Day (August 20)

Frankenstein Day (August 30)
Mary Wollstonecraft Shelley was born on August 30, 1797; she wrote the novel Frankenstein in 1816, and published it in 1818 


 

Fall thumbnail showing leaves

FALL

Back to School 

  • Back to School resources related to pencils and graphite

September

Read a New Book Month (September)

National Workforce Development Month (September)

National Preparedness Month (September)

National Hispanic Heritage Month (September 15 - October 15) - celebrate people in STEM

Cloud Appreciate Day (September 12)

International Microorganism Day (September 17)

International Observe the Moon Night (date selected in September/October based on viewing ) (September 19, 2026)

National Pollution Prevention Week (P2 Week) (third week in September)

International Coastal Cleanup Day (third Saturday in September)
World Cleanup Day (third Saturday in September)

Fall Equinox (September 22 or 23 in the Northern Hemisphere)

International Day of Scientific Culture / Día Internacional de la Cultura Científica (September 28)

Astronomy Week (Fall) 

Worldwide Day of Play (late September) 

  • https://en.wikipedia.org/wiki/Worldwide_Day_of_Play
  • https://childrensmuseums.org/dayofplay/

National Public Lands Day (fourth Saturday of September)


October

Campus Sustainability Month (October)

Walk Bike & Roll to School (early October)

Manufacturing Day (MFG Day) (first Friday in October)

World Space Week (October 4-10)

Public Power Week (first week in October) 

Fire Prevention Week (week of October 9)

Ada Lovelace Day (October 8)

National Nano Day (October 9)
National Nanotechnology Day is an annual celebration and pays homage to the nanometer scale, 10–9 meters. #NationalNanoDay

Metric Day (October 10)

Indigenous Peoples' Day (Second Monday in October) - celebrate people in STEM

International Day of the Girl Child (October 11)

Artificial Intelligence (AI) - World AI Week (second week in October)

Earth Science Week (second full week in October) 

National Fossil Day (third Wednesday in October) 

Great ShakeOut Earthquake Drills (third Thursday in October) 

World CRISPR Day (October 20) 

National Chemistry Week (third full week in October)
Mole Day (October 23) commemorates Avogadro's Number (6.02 x 1023), which is a measuring unit in chemistry.

Imagine a Day Without Water (mid-October) 

International Archeology Day (third Saturday in October)

Nuclear Science Week (third week in October)

Take Me Outside Day celebration of outdoor learning (third week in October)

Lights On Afterschool (mid-late October)

World Origami Days (October 24 - November 11)

Dark Matter Day (on or around October 31)

Halloween (October 31)


November

Native American Heritage Month / American Indian and Alaska Native Heritage Month (November) - celebrate people in STEM

El Día de los Muertos (Day of the Dead) (November 2)

World Tsunami Awareness Day (November 5)

National STEM /STEAM Day (November 8)

International Day of Radiology & World Radiography Day (November 8)

World Science Day for Peace and Development (November 10) & International Science Center and Science Museum Day (November 10)

National Dream Destination Day (November 13)

America Recycles Day (November 15)

Pride in STEM Day (November 18) - celebrate people in STEM
International Day of LGBTQIA+ People in STEM

Geography Awareness Week (Third week of November)

GIS Day (Third Wednesday of November)

World Toilet Day (November 19)

World Children's Day (November 20)

Fibonacci Day (November 23)

Thanksgiving (last Thursday in November)

"Black Friday" Shopping Day - (Friday after Thanksgiving)

Black Hole Friday (last Friday in November)


December

World Futures Day (December 2)

National Disability Day (December 3)
International Day of Persons with Disabilities (December 3)

Computer Science Education Week (CSEdWeek) and Hour of Code (second week in December)

Wright Brothers Day (December 17)

Games Day (December 20)

Winter Solstice (December 20 or 21 in the Northern Hemisphere)


OTHER SPECIAL EVENTS

Super Hero activities

Science Fiction 

Food related activities

  • NISE Network food activities
    Food is a great way to connect relevance of STEM content to our lives. Activities explore the science of cooking and preparing food, some of the societal choices about how we grow and process food. Activities can be incorporated into events that involve cooking an eating, food festivals, and annual celebrations like Halloween and Valentine's Day.

Past Year Long Events


2025 Year Long Events

2023-2025 Year Long Events

  • Planetarium Centennial (Fall 2023 to May 2025)
    The first planetarium projector was unveiled in Germany in October 1923 and the first planetarium opened to the public on May 7, 1925, when the Deutsches Museum opened in Munich.

2022-2023 Year Long Events


2022 Year Long Events


2019 - Year Long Events


2015 - Year Long Events

International Year of Light (2015)

Short hands-on activities

Videos

Programs

Online workshop

More light activities


2014 - Year Long Events

International Year of Crystallography (2014)


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