I've made an account via Yahoo! Japan, and it only required a Japanese zip code (which I googled), if that's any consolation. c:
I've been doing alright, though. I'm away from home, at the moment, and it's still fairly warm here during the day, so it's been nice. I hate bipolar weather, though, so I sympathize. It's only been cold here in the mornings/evenings, thankfully.