AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/headlights-rain

When should headlights be on during rain?

Any time visibility is reduced.

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  1. Only at night
  2. Only in heavy storms
  3. Whenever visibility drops ✔

Why: Headlights help you see and help others see you.

Huh, didn't know that: Many states require headlights with wipers.

The dad joke
The headlight had a bright future.
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References

Answer: Whenever visibility drops. Headlights help you see and help others see you.

  1. California DMV: An Introduction to Driving qr.dmv.ca.gov/portal/handbook/california-driver-handbook/introduction-to-driving
    If you need to use your windshield wipers due to fog, rain, or snow, you must turn on your low-beam headlights.
    Checked 2026-10-09.

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