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You get your oil changed every few months, wash and vacuum your vehicle weekly, and schedule comprehensive service checkups when your car hits a certain mileage. But how often should you replace windshield wipers?
“Wiper blades are one of those car parts you don’t think about, until you’re driving through heavy rain and can’t see clearly,” says Justin Yoshizawa, Director, Product Management. “Because they’re inexpensive and easy to replace, keeping them in good shape is one of the simplest ways to stay safe on the road.” Here’s what you need to know about their longevity and when to change wiper blades.
How Long Should Windshield Wipers Last?
On average, windshield wiper blades last six to 12 months. Even if they look fine, the rubber slowly degrades due to sun exposure, temperature changes, dirt, and regular use. Over time, this wear reduces their ability to clear water effectively, which can compromise visibility.
Signs It’s Time to Change Wiper Blades
Wondering when to change wiper blades if you’re using them in certain conditions? Even if you’re slightly outside that six-to-12-month time frame, you may be able to get extra mileage out of your windshield wipers. Here are a few indicators it’s probably time for a new set:
Streaking or smearing
If your wipers leave lines or a hazy film across the windshield, the rubber edge is likely worn or uneven. This reduces visibility, especially at night when glare is already an issue.
Squeaking or chattering noises
A squeaking sound usually means the rubber has hardened and isn’t making smooth contact with the glass. Chattering — when the blade jumps across the windshield — is another sign of stiffness or uneven wear.
Skipping across the windshield
When wipers skip instead of gliding smoothly, they’re no longer flexible enough to conform to the windshield’s curve. This often happens as those blades age or dry out.
Visible cracks or splits in the rubber
If you can see cracks, tears, or missing pieces in the rubber, it’s definitely time for a replacement. Not only can these damaged blades not clear water, but they can even potentially scratch the windshield glass.
When to Change Wiper Blades Based on Climate
If you live in a hot, humid climate, in areas with intense winter weather, or in a cold, rainy area, you may need to replace your blades with the seasons. Where’s what to change them based on your temps and conditions:
Hot weather and sun exposure
High heat and direct sunlight cause rubber to dry out and crack faster. In hot climates, you may need to replace wipers closer to the six-month mark.
Cold weather and ice damage
Freezing temps in wintertime can make rubber brittle, and when scraping ice off your windshield, you may accidentally tear the wiper blades.
Frequent rainy conditions
Heavy use in wetter climates means more friction and faster degradation.
Why Clear Visibility Matters for Safe Driving
Clear visibility and situational awareness should be your No. 1 priorities when driving. Worn wiper blades can reduce your ability to see road hazards, pedestrians, and other vehicles, especially during storms or low-light conditions. Replacing them on time helps ensure your windshield stays clear when reaction time matters most.
If you can’t remember the last time you replaced your wiper blades, it’s probably a good time to check them. And while you’re at it, contact Mercury for a fast, free quote on your auto insurance.
FAQs About Windshield Wiper Blade Replacement
Should I replace both wiper blades at the same time?
Yes. Wiper blades usually wear at the same rate, and replacing both ensures even performance and consistent visibility.
Are premium wiper blades worth the extra cost?
Premium blades often last longer and perform better in extreme weather, making them a good investment if you drive frequently or in harsh conditions.
Can I replace windshield wiper blades myself?
Absolutely. Most wiper blades are designed for quick, tool-free installation, making this an easy DIY maintenance task for most drivers.
Justin Yoshizawa is Director of Product Management for Mercury Insurance, overseeing California’s personal lines, including auto, homeowners, landlord, and umbrella. He has led major initiatives such as the rollout of the aligned umbrella product across all Mercury territories and serves as a company spokesperson on auto-related topics. Yoshizawa holds dual Bachelor of Science degrees in Applied Mathematics and Applied Statistics from UC Santa Barbara.
The Mercury Marketing Team is made up of professionals in the fields of Content Creation, Public Relations, Social Media and Journalism. The team works together to deliver professionally written and researched content to provide information for consumers.