You'll need a special visa and checks before training in the USA.
Some areas of the US have very good weather.
I started my PPL at 20.15 on 27/7/64. I finished it at 19.45 on 21/8/64.
That was at the cheapest school I could find, in South England, (Thruxton), on no electrics, no radio, biplane taildraggers. But with excellent instructors. Some days were lost to weather.
You just might be able to do it. Could you get a familiarisation flight in HK before going? Or before planning, so you know what's involved in the practical part?
Someone will be along to give you more details about the US situation. I've only rented there, but for an FAA licence consider areas like South Dakota or Colorado.
I take it time is more important than money.