Online advice
Wiper blades should be replaced every six months to a year or as soon as you notice a difference in driving visibility.When wiper blades no longer make proper contact with the windshield surface, they can begin to squeak, chatter, skip, smear or streak reducing driving visibility.
Kind of like your 9 volt smoke detector battery. If you still have this style detector and change it when you do your clocks now is the time.
Another option is replace the detector
With the new 10 year model