"Wildfire season" refers to a specific period in which the risk of wildfires occurring and spreading rapidly is higher than usual due to certain environmental conditions, such as dry weather and strong winds. Full definition
As expected, California also saw an intense wildfire season in 2014, blowing well through its firefighting budget. (theguardian.com)
As the Agriculture Secretary, Perdue would be responsible for overseeing programs to reduce carbon pollution from farms as well as protect forests from the impacts of climate change, particularly a notable increase in the length of wildfire season and the number of large fires. (climatecentral.org)
Of course, a longer wildfire season doesn't necessarily translate into more wildfires. (carbonbrief.org)