The THC Potency Index: average max 20.4% THC across 170 cultivars

Cultivars in the index

170

with chemistry data

Average max THC

20.4%

across the full index

Current peak

33%

Northern Lights 10 of 10

The potency distribution, where the cultivar base actually sits

under 15% 17

15–20% 27

20–25% 68

25–30% 48

30%+ 10

Most-reported effects across the same base

relaxing 140euphoric 140uplifting 116creative 50sleep 36pain relief 32focus 30

Methodology

Source: the network cultivar index behind WeedYouLike, breeder-reported and lab-observed chemistry for every indexed cultivar.

We use maximum reported THC per cultivar; the average is the arithmetic mean across all cultivars with valid chemistry data.

Potency is chemistry, not effect: dose, tolerance and terpene profile change the experience as much as the number.

The index grows as the network grows; figures recompute on every request.

Cite this study

Figures on this page update live as the network changes. If you use them, journalism, research, a blog post, link back so readers always land on the current numbers:

The THC Potency Index — CannabisIntelligence.ai (2026-10-31). Live data: https://cannabisintelligence.ai/studies/thc-potency-index

<a href="https://cannabisintelligence.ai/studies/thc-potency-index">The THC Potency Index</a>

The average cultivar now peaks at 20.4% THC.