Aerial footage of the affected areas showed engorged rivers and villages partially submerged by floodwaters.
"There is huge loss due to the floods … the crops have been destroyed," Pushkar Singh Dhami told Reuters partner ANI after surveying the damage late on Tuesday.
"The locals are facing a lot of problems, the roads are waterlogged, bridges have been washed away. So far 34 people have died and we are trying to normalise the situation as soon as possible."
Prime Minister Narendra Modi said in a tweet he was "anguished" by the loss of life.
The Himalayan state of Uttarakhand is especially prone to flooding. More than 200 were feared killed in February after flash floods swept away a hydroelectric dam.