Cannabis events & dates — November 2026
Everything on the cannabis calendar for November 2026: conferences and trade shows, retail sales days, policy and voting dates, and regulatory and tax deadlines. Click any item for details and add-to-calendar links, or switch to the week and day views.
KeyEventSalesPolicyRegulatoryTaxCultureDashed outline = date estimated or pending; confirm with the organizer before booking.
All items in November 2026
10 items- Nov 2, 2026
California cannabis excise tax return due — Q3 (Jul–Sep)
Cannabis retailers file the CDTFA cannabis retailer excise tax return and payment for Q3 (Jul–Sep). The excise rate is 15% through June 30, 2028 (AB 564).
- Nov 3, 2026
US midterm election — cannabis measures on the ballot
Statewide cannabis questions certified for November 3: Massachusetts Question 8 (repeal the adult-use market while keeping medical) and Idaho HJR 4 (reserve legalization authority to the legislature, blocking citizen initiatives). Florida's adult-use amendment, Idaho medical, and Nebraska adult-use did not qualify. Local measures include California cannabis tax questions (Arroyo Grande, Guadalupe) and Michigan opt-in votes.
- Nov 4–5, 2026
Hall of Flowers — Sacramento (Northern California)
Hall of Flowers' fall California show, relocated from Santa Rosa to Sacramento for 2026. Curated retailer–brand trade show; venue to be announced.
- Nov 5–6, 2026
Cannabis Clinical Outcomes Research Conference (CCORC)
Sixth annual clinical-research conference hosted by the University of Florida's Consortium for Medical Marijuana Clinical Outcomes Research. Dates per the Florida State Cannabis portal.
- Nov 7, 2026
Florida CannFest
Cannabis culture festival — live music, vendors, glass artists and food trucks — at Renninger's in Mount Dora.
- Nov 10–11, 2026
Interchange Seattle (Marijuana Venture)
Marijuana Venture's scheduled one-to-one buyer meetings between Washington retailers and producer/processors. Dates per Cannabis Business Times' events list; the organizer's own page had not been updated when checked.
- Nov 12, 2026
Federal limit on intoxicating hemp-derived THC products takes effect
The November 2025 appropriations law redefined hemp to exclude products above 0.4 mg total THC per container, effective one year after enactment (November 12, 2026). On August 8, 2026 the Senate passed a continuing resolution that would push the effective date to December 11, 2026; the House stopgap did not include the delay. Watch this row — the date may move.
- Nov 25, 2026
Green Wednesday
The day before Thanksgiving — the second-biggest cannabis retail day of the year, ahead of Black Friday.
- Nov 26, 2026
Thanksgiving ("Danksgiving")
Many stores close or run short hours; the marketing moment is the Wednesday–Friday window around it.
- Nov 27, 2026
Black Friday
Third-largest cannabis retail day; doorbuster and bundle promotions dominate.
Missing an event in November 2026?
Organizers are listed free. Send us the dates and the source and we’ll add it after checking.