2020 in Colorado

Decades:	2000s; 2010s; 2020s;
See also:	History of Colorado; Historical outline of Arizona; List of years in Colorado; 2020 in the United States;

The following is a list of events of the year 2020 in Colorado.

Incumbents

State government

Governor: Jared Polis (D)
Lieutenant Governor: Dianne Primavera (D)

Events

March 5 – Colorado records its first two confirmed cases of COVID-19 within the state.
March 14 – The Colorado State Legislature votes to suspend its 2020 legislative session due to pandemic concerns.
March 25 – Governor Jared Polis issues a statewide "Stay-at-Home" executive order to curb virus transmission.
July 31 – The Pine Gulch Fire ignites north of Grand Junction, eventually burning 139,007 acres and temporarily becoming the largest wildfire in state history.
August 13 – The Cameron Peak Fire ignites near Chambers Lake, eventually burning over 208,663 acres to become the largest wildfire in Colorado history.
October 14 – The East Troublesome Fire ignites in Grand County, burning 193,812 acres and crossing the Continental Divide.
November 3 – The 2020 United States presidential election in Colorado takes place, with Joe Biden winning the state's electoral votes over Donald Trump. Colorado voters also pass Proposition 114, approving a plan to reintroduce gray wolves, and Proposition 118, establishing a paid family leave program.

References

↑ Dukakis ·, Andrea (March 5, 2025). "It's been 5 years since the first COVID case in Colorado. But doctors warn more viruses threaten public health". Colorado Public Radio. Retrieved June 27, 2026.
↑ White, Andrew (August 14, 2020). "The CBA's 2020 Legislative Session in Review". Colorado Lawyer. Retrieved June 27, 2026.
↑ "Polis Issues Colorado Stay-at-Home Order: 'Now Is Not The Time To Die'". Colorado Public Radio. March 25, 2020. Retrieved June 27, 2026.
↑ "Pine Gulch fire grows to second-largest in Colorado history; investigators seek tips on Cameron Peak fire's ignition". The Colorado Sun. August 19, 2020. Retrieved June 27, 2026.
↑ Lytle, Kevin. "Cameron Peak Fire becomes largest wildfire in Colorado history". Fort Collins Coloradoan. Retrieved June 27, 2026.
1 2 Blumhardt, Miles (November 17, 2020). "Colorado's 3 largest wildfires in history all happened in 2020". The Denver Post. Retrieved June 26, 2026.
1 2 Woodruff, Chase (May 29, 2026). "Fifty for 150: Fearsome East Troublesome Fire caps off 2020's historic wildfire outbreak". Colorado Newsline. Retrieved June 27, 2026.
↑ Verlee, Bente (November 3, 2020). "Colorado Election Results 2020: Joe Biden Wins The State". Colorado Public Radio. Retrieved June 26, 2026.
↑ Brasch, Sam (November 6, 2020). "In Historic Move, Colorado Voters Decide To Reintroduce Gray Wolves". NPR. Retrieved June 27, 2026.
↑ Kenney ·, Andrew (November 3, 2020). "Colorado Voters Say Yes To A Paid Family And Medical Leave Program". Colorado Public Radio. Retrieved June 27, 2026.

[1] Dukakis ·, Andrea (March 5, 2025). "It's been 5 years since the first COVID case in Colorado. But doctors warn more viruses threaten public health". Colorado Public Radio. Retrieved June 27, 2026.

[2] White, Andrew (August 14, 2020). "The CBA's 2020 Legislative Session in Review". Colorado Lawyer. Retrieved June 27, 2026.

[3] "Polis Issues Colorado Stay-at-Home Order: 'Now Is Not The Time To Die'". Colorado Public Radio. March 25, 2020. Retrieved June 27, 2026.

[4] "Pine Gulch fire grows to second-largest in Colorado history; investigators seek tips on Cameron Peak fire's ignition". The Colorado Sun. August 19, 2020. Retrieved June 27, 2026.

[5] Lytle, Kevin. "Cameron Peak Fire becomes largest wildfire in Colorado history". Fort Collins Coloradoan. Retrieved June 27, 2026.

[dp_fires-6] 1 2 Blumhardt, Miles (November 17, 2020). "Colorado's 3 largest wildfires in history all happened in 2020". The Denver Post. Retrieved June 26, 2026.

[:0-7] 1 2 Woodruff, Chase (May 29, 2026). "Fifty for 150: Fearsome East Troublesome Fire caps off 2020's historic wildfire outbreak". Colorado Newsline. Retrieved June 27, 2026.

[cpr_election-8] Verlee, Bente (November 3, 2020). "Colorado Election Results 2020: Joe Biden Wins The State". Colorado Public Radio. Retrieved June 26, 2026.

[9] Brasch, Sam (November 6, 2020). "In Historic Move, Colorado Voters Decide To Reintroduce Gray Wolves". NPR. Retrieved June 27, 2026.

[10] Kenney ·, Andrew (November 3, 2020). "Colorado Voters Say Yes To A Paid Family And Medical Leave Program". Colorado Public Radio. Retrieved June 27, 2026.