The temperatures have been around -10 (Celcius) recently. The flow of water in the Niagara river around the Niagara Falls is too fast for the river to freeze under these temperatures, but you can see ice floating in the water.

Floating ice

... And the Horse shoe fall looks really chilly!!!

Horseshoe Fall (with rainbow)

Horseshoe Fall: close up

Horseshoe Fall: another angle

Ice bridge forms across the Niagara river, connecting the U.S. and Canadian sides. This usually lasts until April but not every year it is formed at all because the weather has been warmer in recent years. This year we are lucky (?!)

Ice bridge in January
Another view

Trees around the falls are completely covered in ice. This is frozen mist rising from the falls.

Trees under ice

The Niagara river in winter is a magnificient sight that is something completely different from summer!

Niagara river in January
Lower Niagara (between the Falls and Lake Ontario)
Niagara at Lake Ontario

As the winter continues, the ice bridge is getting thicker

Ice bridge in February

... But the spring is clearly getting closer!
Horseshoe fall on a sunny day in February
Rainbow

Buffalo and its vicinity are excellent places for winter sports. I especially like cross-country skiing
X-country ski