How much does it rain at Yellowstone?

Yellowstone NP is a large area with widely varying climate -- some parts get twice as much as much rain as other parts. Note also that scientists do not total up "rain" so much as inches of total water that falls in an area -- whether or not the water fell in the form of rain or snow.

Old Faithful recieves an average of 24 inches of water precipitation each year, including 212 inches of snow.