Monster Day Greeley | August 23, 2025
Noon-5pm | Downtown Greeley, CO
Countdown to Monster Day 2025
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The Mission of Monster Day is to celebrate monsters in our culture in a positive way that encourages imagination and creativity.
Mark your calendar for August 23, 2025, when Monster Day takes over Downtown Greeley again!. There will be costumed monsters roaming the plazas, professional makeup demonstrations, vendor booths, food and beverages, monster makeup, face painting, music, kids activities, a costume contest and more! Plus, Distortions Unlimited will have dozens of their creations set up around the plaza ready for your epic monster photo ops.
More information on the 2025 event is coming soon! (Get updates and RSVP to the Facebook event here.)
Monster Day Greeley - Aug. 17, 2024
Noon-6p.m. in Downtown Greeley
What is Monster Day?
It’s a family-friendly celebration of all things “monster!” With the debut of Greeley Gremlin, music, entertainment, face painting, costume contests, demonstrations, and more!
Don't Be a Monster
Proceeds from Monster Day will benefit Don’t Be A Monster, a 501(c)(3) nonprofit organization that offers unique and entertaining anti-bullying assemblies in schools for students in 4th-10th grade.
Follow the fun on Facebook
RSVP to the Monster Day 2024 Facebook event, and follow the monster fun on our Monster Day Facebook page.
Meet Rex The Newest Monster Day Greeley Mascot
We'd like to introduce you to Rex, Distortions Unlimited's latest creation and addition to the Monster Day family. Come to Monster Day Saturday, August 20, 2022, from noon-6pm in downtown Greeley, Colorado. Meet Rex, our newest Monster Day mascot, along with Greeley,...
Popsicle The Triceratops – The Newest Addition To The Monster Day Family
Have you heard the news? There’s a new Triceratops in town! And this little guy, affectionately known as Popsicle, the newest member of the Monster Day family and an honorary member of the Pops the Triceratops team. Popsicle joins Greeley, Chewbie, Galaxy, and Fang,...
Proceeds From Monster Day Go To Don’t Be A Monster
https://youtu.be/6YsEg9GQIXU One of the first questions people ask of us is, “Why Monsters?” First off, monsters are a lot of fun. Second, we have some pretty famous monster makers here in Greeley that helped get the ball rolling. Third, we found a nonprofit to...
Monster Day 2018 Photos
Thanks to everyone who came out and helped make Monster Day 2018 an amazing experience! Scary, creepy, cute, fuzzy, gross, fun...we saw all kinds of monsters, and we can't wait to see even more in 2019! Enjoy a few photos we snapped and some of what other...
Monster Day Greeley 2018 Costume Contest Photos
Monster Day Greeley is happening THIS Saturday, August 18, 2018, from 4 p.m. to 9 p.m. in Downtown Greeley. There will be creatures everywhere and 40+ costumed actors roaming the area, but we also want to see your costume creations, so come dressed up and celebrate monsters with us. We’ll hold the costume contest around 6 p.m. on the main stage to let our first 40 entries show off their hard work and have a chance to win amazing prizes from Distortions Unlimited!
Happy National Monster Day!
According to the Internet, August 14 is National Monster Day! Could the timing be any better, with Monster Day Greeley set to take place this weekend? We think not. So, celebrate your favorite monster(s) and mark your calendars to join us for a HUGE...
Monster Day Theme Song
We think that Monster Day Greeley is the only local event with its own theme song and music video. Check it out. Don't miss Monster Day on August 18 in Downtown Greeley!
The Greeley Gremlin Bikes to Work
Colorado Bike to Work Day is scheduled for the last Wednesday in June. This year the Greeley Gremlin biked to work.
2018 Governor’s Award for Downtown Excellence – Monster Day Greeley
Monster Day Greeley, may now be referred to as “The Award-Winning Monster Day Greeley!” Earlier today, Downtown Colorado Inc. (DCI) presented Monster Day Greeley a 2018 Governor’s Award for Downtown Excellence for best event, festival, or recurring...
![Monster Day Greeley Photos [Gallery 2]](https://monsterdaygreeley.com/wp-content/uploads/2017/08/md-header2.jpg)
Monster Day Greeley Photos [Gallery 2]
Thanks to everyone who came out and make the first ever Monster Day such a success! I know we took more pictures than we know what to do with, and judging by how many camera flashes I saw going off all night, I think a lot of other people did the same thing. Here is...