system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why there is no thunder when it snows but only when it rains?

Or at least less thunder during snowing time.
gpt
The air is dryer in the winter, and also the storms tend to be more stable. Without these two ingredients lightning doesn't form.

Though to answer the question of thunder (in the case of there is lightning) snow acts as a sound dampener. Go outside after a snow fall and notice how it's eerily quiet. That's because sound waves get trapped in the nooks and crannies in the fresh fallen snow.