Do Siberian tigers live in rainforests?
No, white Siberian tigers do not live in rainforest's. However white Bengal tigers can sometimes be found, a white Bengal tiger is not an albino, but the genes inside it are slightly different to that of an ordinary Bengal tiger, the difference gives it white-ish fur.
White Siberian tigers are found in Mountainous area's with lots of snow. Mainly places like Russia and Siberia.
Most tigers live in jungles with high to moderate rainfall. However, some tigers, like the Siberian Tiger live on the plains and therefore receive low to average rainfall. However, there are no tigers in deserts with minimal rainfall, even though there are some rainforests where tigers used to live (like Java where the now-extinct Javan tiger used to live).