This is a view of a hailstorm from afar. Unlike other forms of precipitation, hail can occur in warmer climates. This photo was taken in Black Rock Desert, Nevada, USA.
http://www.sciencephoto.com/media/161686/enlarge

This is a couple of pictures of Niagra Falls, frozen in 1911.

http://www.fans25.com/discuss-thread.cfm?dt=651
http://www.retronaut.co/2012/01/frozen-niagara-falls/