When is the best time to visit Niagara Falls?

My fiance and I have been talking about going there, after seeing pictures from my sisters visit. When is the best time to go though? We don't want to go when its freezing out. But I don't want to wait forever.

Which season is best for sightseeing, etc - Fall? Summer? What about a particular month? I don't want to plan a trip and find out all of the parks and attractions are closed, or that I've chosen the rainest month of the year!

Also, what are some other local sights to see?

What is the best time of the year to visit the Grand Canyon? and the Niagara Falls? Im planning a vacation the second week of november and im trying to decide on a place to go.... ...show more

I will pass by Niagara Falls for a couple of hours and I wanted to know what would be the best time to arrive. Also is it better on weekends or weekdays? How long do you suggest me to stay there? And what should I do once I arrive?

My friend and I are planning on driving up to Canada as our graduation trip and are planning on stopping at Niagara Falls. How many hours should we plan for. We'll probably do maid of the mist and behind the falls.

We are going to Niagara Falls, Canada on May 6th, and returning the 11th. I was wondering how is going to be the weather? How should we dress? Thanks! :)