I come to uttarakhand in the summer months when its pretty hot in the lower areas. Upper reaches are still quite cold. Oct is also nice. I remember on a very warm day, weather turned very quickly and i was caught in a never ending hail shower in the evening. I was not wearing any warm clothes and the freezing cold rain turned my body blue. I could barely ride the bike any further. With great difficulty managed to ride to the next small village. Thankfully, the locals saw my bad state and invited me in, gave me some warm clothes and let me sit by the fire.
When ravi bhai say "nice weather" its bloody cold for most of us. When he says its "very hot" , its just morning sunshine for us.
. BTW. I set my AC at 27C . Anything below that is uncomfortable for me to sleep in. Hahaha