I almost busted my ass pushing the bike into the driveway! A quick YouTube search did in fact return results showing dudes riding on the streets with snow.
Triumph's video for the 2015 Tiger 800, makes it look like a more off road bike.
Triumph Tiger 800 - YouTube
But as visordown points out they have a strange disclaimer at the end of the video.
This is visor downs road test of the Tiger