In the year 1911, Niagra falls froze over, anyone have any idea what sort of temprature it would have been to?

Answer 1

HOWEVER.... The flow of water was stopped completely over both falls
on March 29th 1848 due to an ice jam in the upper river for several hours. This
is the only known time to have occurred. The Falls did not actually freeze
over, but the flow was stopped to the point where people actually walked out
and recovered artifacts from the riverbed!

Yes, but it has not happened in a long time. Scroll up to "World's Largest Ice Block" (item #5) on this same page for more info. User101010 02:30, 27 August 2006 (UTC)

I'm not sure about the Niagara Falls in particular, but yes, waterfalls can freeze over. However, in most parts of the world where there are waterfalls it never gets cold enough for that to happen. I think the Niagara Falls may have been frozen at some point (as in millions, if not billions, of years ago). Also, I should mention that the faster water moves, it is less likely to freeze over. So as my conclusion, Niagara Falls would likely never freeze over. It would never get ANYWHERE NEAR cold enough in that part of the world, and the water is just too fast. SilentWind 21:24, 22 October 2006 (UTC)
The American Falls have frozen over on six occasions since the keeping of records began. Each were attributed to ice jams that have actually curtailed the flow of the American Falls to mere trickles.

Unlike the Horseshoe Falls (which has never frozen over), the American Falls are susceptible to freezing because of the small amount of water flow. Normally the American Falls has a peak mean flow of 10,000 cubic feet of water per second. The winter mean water flow is reduced to less than 8,000 cubic feet of water per second. This minimal flow is barely sufficient to cover the rock face of the Falls. During harsh winters, ice frequently built up at eastern end of Goat Island causing an ice dam to reduce the water flow to the northern channel which feeds water to the American Falls. As a result water flow is restricted sufficiently that any remaining waters quickly freeze over.

Answer 2

Only once did it freeze over completely which was in 1848. In 1911 there were still tiny streams of water running between the ice.

Answer 3

Not sure of the exact temperature but it would have to be incredibly cold to freeze a moving body of water in such a huge quantity and of such enormous power.

Answer 4

i has nothing to do whith the temp it was that the water level in the great lakes lowered to the point that water wasnt running fast enough to stay liquid so it frozze. also in order for water to freze at has to be below 0 degrees celcius

Answer 5

below freezing

Answer 6

http://www.iaw.com/~falls/faq.html#what

Answer 7

it has frozen over more recently then that