when is the best time to go to yellowstone national park

garryearl wrote:
when is the best time to go to yellowstone not wanting it to be real hot

I would say First part of October - after spending the last week in September in Colorado watching the Aspen Change - little less crowded and a slight chance you will need to work around a snow storm but truly Beautiful in October (snow is not a Bad thing in Yellowstone - just look at the Old Faithful webcam).

JMHO,