December Celebrations

AIDS Awareness Month
Art and Architecture Month
Awareness Month of Awareness Months Month
Bingo's Birthday Month
Bingo Month
Cancer-Related Fatigue Awareness Month
Choose a Summer Camp Month, Natl
Colorectal Cancer Education and Awareness Month
Identity Theft Prevention and Awareness Month
International Calendar Awareness Month
International Sharps Injury Prevention and Awareness Month
Learn A Foreign Language Month
National Drugged and Drunk Driving Prevention Month
National Hand Washing Awareness Month
National Made in America Month
National Sign-Up for Camp Month
National Tie Month
National Write A Business Plan Month
Nativity Fast (Eastern churches) starts September 1st
Operation Santa Paws December 1st - 24th
Quince and Watermelon Month
Read a New Book Month
Root Vegetables and Exotic Fruits Month
Safe Toys and Gifts Month
Seasonal Depression Awareness Month
Spiritual Literacy Month
Take a New Year's Resolution to Stop Smoking (TANYRSS) December 17th - February 5th
The Christmas Seal Campaign Month
Tomato and Winter Squash Month
Universal Human Rights Month
Winter-een-mas season (to celebrate the joy of video gaming)
World Aids Month
Worldwide Food Service Safety Month
Write (to) a Friend Month

Week Celebrations in December

Hand Washing Awareness Week, First Full Week in December
Clerc-Gallaudet Week, First Full Week in December
National Handwashing Awareness Week, First Full Week in December
Recipe Greetings For The Holidays Week, First Full Week in December 

Human Rights Week , December 10th - December 17th
Christmas Bird Count Week, December 14th through February 5th 

Gluten-free Baking Week, Full Week Before Christmas
Las Posadas, December 16th through December 24th (Spain, Mexico, Guatamala, Southern USA)
Saturnalia, (Ancient Rome) December 17th - 23rd 

Christmas Week, December 25th through January 6th
Kwanzaa, December 26th through January 1st
It's About Time Week, Final Week of December 

Halcyon Days, 7 days before and 7 days after the Winter Solstice 

Moving Holidays in December

Faux Fur Friday, First Friday in December
Special Kids Day, First Saturday in December
Earmuff Day or Chester Greenwood Day, First Saturday in December
Skywarn Recognition Day, First Saturday in December
Worldwide Candle Lighting Day, Second Sunday in December
World Choral Day, Second Sunday in December
International Children's Day, Second Sunday in December
National Salesperson Day, Second Friday in December
Day Of The Horse, Second Saturday in December
International Shareware Day, Second Saturday in December
Free Shipping Day, Third Monday in December
Underdog Day, Third Friday in December
National Re-gifting Day, Thursday before December 25th
December Solstice, Usually December 21st or 22nd
Summer Solstice, (Southern Hemisphere) Usually December 21st or 22nd
Winter Solstice, (Northern Hemisphere) Usually December 21st or 22nd 

Moving Holidays Often in December

Rockefeller Center Tree Lighting, Late November or Early December
Advent Sunday, Advent begins, Fourth Sunday before December 25th

Ashura a.k.a. The Tenth Day (Islamic ), 10th day of Muharram in the Islamic calendar, begins at sundown

Eid al-Adha, a.k.a.  Feast of the Sacrifice, the Major Festival, the Greater Eid, Kurban Bayram, Eid al-Bakr, or Bakrid, The 10th day  through the 14th of Dhu al-Hijjah in the lunar Islamic calendar

Chanukah (Jewsish), Eight nights and days, starting on the 25th day of Kislev according to the Hebrew calendar, begins at sundown
Asarah B'Tevet, Tenth of Tevet, Tenth day of the Hebrew month of Tevet