I'm all for this, especially the ability for rain to make crops grow faster. Is this possible though without mods?

AFAIK, that would require the alteration of the current town plugin, the brach of time which might be a it complicated. I also think that if such would to happen, it should not only implicate the crop grow system, but also for example the tree leaves colouration or breeding of animals.

I mean it does actually snow in some desert places

Idk if it should be done for biomes though since where im located there isn’t ever snow irl but there is a plains biome which wouldn’t help if it started snowing

Snow in dessert biome, polar bear spawning in jungle biome

It litterally never rains