I thought this would be an interesting thing to add to this, a sort of time of year thing that changes in OOC upon request.
The Soul Society and Human World clearly will have different weather at different times.

I'm not sure how Hueco Mundo will do.
But the Kembutsu Home World also will have weather patterns.

For now I'll start, at least with the human world. Others may request with the Soul Society.

Human World:
Time of Year - Late Autumn
Weather - Sunny with a few clouds