Hey there,
Your question states: What is the climate of the Himalayas?
In the Himalayas, it is known to be very (Humid, and also rainy, and the temperature there is about 80° - 90°).
They have rainfalls, and also one good thing to take to mind, when it is winter there, its about (55°- 65°) It's pretty warm for that.
Hope this helps.
~Jurgen