Here in the northern hemisphere, it's winter. And where I am right now - it's very winter. Miserable stuff that snow. Except when you have a camera in your hand.
Then it's a playground. The landscape takes on a very different look, colours become monochrome, crystals form, fog moves in on cat's paws (to quote a poem we learned in high school), rain creates incredible reflections and clouds create wonderful patterns.
When the weather stops being sunny, some of the best opportunities for great photos come around.
A couple of hints for you. Cloudy, rainy, snowy, foggy days all have low contrast and will fool a camera meter to make the picture darker than the scene actually is. Increase your exposure by about one and a half stops to compensate.
Night photos require longer exposures, grab a tripod or place the camera on a sturdy support. If you can set the self-timer you'll get even sharper images, especially with dSLR's because the mirror in the camera won't be moving at the time of the exposure.