How Record Heat Impacts Pacific Northwest Cannabis Markets Photo Credit: Andrew Grinkevich via Unsplash
July 6, 2021

The Heat Dome over the northwestern United States may affect cannabis prices throughout the growing season, with heat damaging plants planned for mid-summer light-deprivation harvests, scrambling the planting and early development of full-term crops, and sparking the early onset of wildfires. Cultivators are adapting by shading outdoor and greenhouse operations to protect plants, avoiding planting in extreme heat, and scheduling workers to avoid the hottest part of the day. The early arrival of wildfires in Northern California was also attributed in part to the Heat Dome, along with lightning strikes which sparked the still-uncontained 13,000-acre fire in Siskiyou County.


As we have covered previously, the past several years have seen record-breaking wildfire activity and drought in regions of California, Oregon, and Washington that are home to significant outdoor cannabis cultivation. However, this year’s extreme heat early in the season is a unique development, while drought is more severe currently along the West Coast than it was a year ago, prompting more – and more stringent – water restrictions for some growers, among other impacts. Many also fear that those factors will result in another record-setting fire season this year.


In recent years, such extreme weather and natural disasters have not significantly dented supply from outdoor production in the West Coast states. Last year, for example, growers in northern California and southern Oregon reported excellent growing season conditions up until the point wildfires threatened their crops close to harvest. However, as climate change continues to exacerbate heat, drought, and wildfires in unprecedented ways, we may see impacts to wholesale cannabis prices in the months ahead.


Finally, unprecedented heat may impact indoor growers as well. Increased production costs – or even crop loss or disruptions in the cultivation process – could ensue if strained HVAC systems cannot keep up or power outages occur.