Static on landline telephone when it rains

I tried posting this before and it apparently didn't go through, so apologies if this winds up being posted twice!

Does anyone else have issues with their landline phone when it rains?  Over the past year, every time it rains, I lose my landline service and instead of a dial tone, I get static on the phone.  I have tried swapping out the modem for a new modem.  I've tried calling Cox Customer Service and they "send a signal to my phone," which never ever works.  I've had Cox tell me it's my phone itself (only when it rains?) or "the problem is your inside lines" (only when it rains?).  My phone jack is new.  But every time it rains, and ONLY when it rains, I lose my dial tone and get static on the phone line and can't make a call or receive incoming calls.   Then, after several days of dry weather with no rain, suddenly with no help from Cox, my dial tone returns.

It seems pretty clear there is a problem with an outside phone line getting wet in rainy weather and disrupting my phone service.  Is there any way to fix this, and does anyone else have this issue?