The bug
When you try to use a trident with the riptide enchantment while it's snowing in a biome like, for example, ice plains, you'll notice it doesn't work. However, in other biomes at y=300 (where it can snow) you can use the trident.
Linked issues
is duplicated by 2
relates to 1
Comments 12

The problem is that you can use it at high altitudes where it is snowing.
I was flying with an elytra at a high altitude where it's is snowing and I was boosting myself with a riptide trident. Suddenly, it didn't work anymore because I entered a snowbiome.
If it doesn't work in snowbiomes, it shouldn't work at high altitudes where it snows as well.
Confirmed for 1.13.1.
confirmed for 18w43c
@unknown, you're the reporter of this ticket which means you can add the affected version yourself. 🙂
Confirmed in 1.16.3
In 1.16.4 and 20w48a
In 21w03a.

This bug actually fixed in 20w07a, see https://www.youtube.com/watch?v=C8ql8y_hiC0
Still doesn't work in 1.18 Pre-Release 8.
I'm pretty sure this is WAI, as you need water to hit your body. The snow thing is a whole other issue.