UFO Sightings in Colorado
3,016 UFO sightings reported in Colorado since 1931, peaking in 2020 (226 reports); most often described as light.
- Total sightings
- 3,016
- Span
- 1931–2022
- Peak year
- 2020 (226 reports)
- Dominant shape
- Light
1931–2022 · peak 2020 (226 reports)
Top cities in Colorado
Denver
1954–2022 · peak 2014 (27 reports)
Colorado Springs
1956–2022 · peak 2014 (25 reports)
Fort Collins
1963–2021 · peak 2018 (14 reports)
Boulder
1969–2021 · peak 2013 (9 reports)
Aurora
1962–2021 · peak 2016 (10 reports)
Grand Junction
1989–2022 · peak 2020 (29 reports)
Longmont
1978–2021 · peak 2013 (10 reports)
Littleton
1965–2022 · peak 2002 (7 reports)
Pueblo
1995–2021 · peak 2020 (12 reports)
Lakewood
1969–2022 · peak 2014 (7 reports)
Loveland
1988–2022 · peak 2005 (6 reports)
Arvada
1959–2021 · peak 2016 (8 reports)
Westminster
1971–2021 · peak 2013 (5 reports)
Greeley
1998–2021 · peak 2016 (11 reports)
Thornton
1997–2021 · peak 2015 (5 reports)
Englewood
2001–2020 · peak 2004 (7 reports)
Estes Park
1954–2021 · peak 2019 (12 reports)
Highlands Ranch
1998–2022 · peak 2013 (4 reports)
Golden
1975–2020 · peak 2017 (4 reports)
Broomfield
1998–2020 · peak 2016 (5 reports)
Greeley · CO, USA
100's of lights slightly dimmer than a bright star seen moving from sw to north east then turning north. 1 light broke from group and h
Fort Lupton · CO, USA
Large floating square object on September 13th, 2015.
Englewood · CO, USA
My wife and I saw two objects of white rectangular shape one after the other at a speed faster than a jet while the sun was out.
Boulder · CO, USA
Shifting formation of 12+ dim brown lights.
Fort Collins · CO, USA
Chevron glider cloaked to match stars glides for 15 seconds 40 feet from ground then disappears
Denver · CO, USA
Five bright red lights holding position in fixed formation, heading 110 Degrees due east of Denver, three static in triangle, two flash
Florissant · CO, USA
The 3 orbs were floating around.
Greeley · CO, USA
Black triangle.
Colorado Springs · CO, USA
Bright white light witnessed during blood moon event.
Centennial · CO, USA
Blood moon ufo sightings centennial.
Littleton · CO, USA
Sitting outside watching the full blood moon cycle, very faintly saw a v shaped formation pass just under the moon east to west. It was
Bailey · CO, USA
Red and blue flashing white moving round objects.
Boulder · CO, USA
Orb that split into two orbs.
Aurora · CO, USA
Bright blue green streaking light above Aurora, CO at approx 1:13 am.
Denver · CO, USA
Light disappears, moves, reappears, and shoots short lightning-like discharge.
Silverthorne · CO, USA
Blue spherical light moved quickly across the night sky. ((NUFORC Note: Possible meteor?? PD))
Grand junction · CO, USA
Orange cresent moon shaped object moving south east at a high rate of speed.
Thornton · CO, USA
Blue spider-like flying airplane; could not hear its sound.
Longmont · CO, USA
Ferris wheel shaped object sighted over Longmont, Colorado.
Commerce City · CO, USA
Dancing stars in the sky. ((NUFORC Note: We suspect "twinkling" stars, but cannot be certain. PD))
Pueblo · CO, USA
Me and my children got out of the car and noticed a flickering yellow light. The light dimmed down to just a black blocky type thing in
Thornton · CO, USA
Fireball went into a bright yellow streak that formed a line from east to west and dissappeared
Denver · CO, USA
A light dashed across the sky, then a smaller light spiraled about three times before disappearing.
Broomfield · CO, USA
As I'm walking home notice a few lights in the sky in formation, thinkin it's helicopters, when behind the trees more follow behind af
Mead · CO, USA
Black saucer looking object.