I live in NYC and when it rains, it gets really humid and all, and my car always dies and never starts during this weather. I was just stuck double parked on a major road for an hour because of it.

The last time it happened to me, I changed my alternator and assumed this would not occur again. It happened again......any advice guys?

 

You say it's humid, that could mean you have bad wires and they're getting water on them, is that the only time it won't start, or can it be hot and dry without starting as well? Sounds like something is getting moisture in it but Idk what.

 

Check the condition of your ground wires in the engine bay. Also check your starter, battery, and battery terminals. By check I mean have starter and battery tested.

 

I'm in NYC, I can check it out for you give me a ring 917-442-1775