National days, ongoing national weeks and months, and global observances for December 4, 2027. Plus historical events and birthdays.

December 4, 2027 celebrates National Cookie Day, plus 5 more. National Cookie Day on December 4th serves up a sweet treat. Bakers across the country warm up the ovens for holiday baking, and we enjoy giving tins of cookies to friends and family all season long.
Read the full story →The first Saturday of every month is National Play Outside Day. This National Day presents opportunity to remind everyone to get outside and enjoy the fresh air through play.
Read the full story →Founded in 2016 by National Day Calendar® and Pair of Thieves.
Read the full story →SKYWARN® Recognition Day acknowledges the contributions of public service volunteers who provide essential weather information as it's happening. Each year on the first Saturday in December, the day honors those volunteers who pay attention when the wind picks up, or the sky turns dark. Their efforts keep their communities safer by communicating warnings to the National Weather Service.
Read the full story →Each year on December 4th, Wildlife Conservation Day seeks to spread awareness about preserving and protecting the natural world and its inhabitants. Additionally, the observance strives to put an end to wildlife crime and supporting the Endangered Species Act.
Read the full story →People born on December 4
Longer-running observances that include this date.
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