I'm not sure yet if there are seasons implemented correctly. I saw that it's a little bit warmer in summer months and colder in winter months (depending on the biome you're playing). But it's really strange when the temperature drops suddenly from around 20 Degree to minus temperatures and it starts to snow in July/October... this just don't feel right for most countries. Since you manage weather effects too for animals and guest, you should be able to tell when it could snow... right now it's a little bit off, because I always had snow in the summer and never in winter - acts at least very random to me how especially this snow weather type comes up...