The 2021 Colorado wildfire season was a series of wildfires that burned throughout the U.S. state of Colorado. According to the National Interagency Fire Center, as of July 1, 2021, at least 32,860 acres (13,300 ha) of land had burned in at least 337 wildland fires across the state. Hundreds of homes were burned, and the cities of Louisville and Superior were evacuated, during the Boulder County fires in late December.
Background
While "fire season" varies every year based on different weather conditions, most wildfires occur between May and September with a fire risk year-round with an increasing danger during winter. Drought and decreasing snowpack levels and lowering snowmelt and runoff increase fire risk. These conditions, along with increased temperatures and decreased humidity, are becoming more common from climate change. Vegetation growth provides an ample fuel for fires. From 2011 to 2020, Colorado experiences an average of 5,618 wildfires each year that collectively burn about 237,500 acres (96,100 ha).
List of wildfires
The following is a list of fires that burned more than 1,000 acres (400 ha) or produced significant structural damage or casualties.