I put them in about a month ago, and one of the bulbs has burned out already. I figured it doesn't (usually) rain much here, so I'd be ok, but it's been raining almost nonstop for the past week, and is supposed to continue for the next week or two.

My right turn signal is now just a steady light, and it looks stupid, but I don't feel like replacing a bulb during this ridiculous rainy season we're having just so I can replace it again in 2 weeks.

 

If it stopped flashing, that's not the bulb, it's the flasher.

Also, did you use the seal where the bulb plugs into the housing? If those are shot they leak.

The clears that I made 5 years ago, have yet to leak or blow a bulb.

 

The right side bulb blew out and the left side still flashes fine.