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SESK: Stuff Everyone Should Know · sesk.info/tire-pressure-drops-in-cold

When the outside temperature drops 10°F, about how much does tire pressure drop?

About 1 PSI for every 10°F drop.

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The Just Right card

Too littleIgnore it, it comes back
Too muchInflate far above the door-label pressure
Just rightRecheck pressure when it turns cold

Huh, didn't know that: A 20°F cold snap can lower tire pressure by about 2 PSI.

The dad joke
Why did the tire need a vacation? It couldn't take the pressure anymore.
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References

Answer: About 1 PSI. As temperature falls, tire pressure drops about 1 PSI per 10°F. That is why the low-pressure light often pops on during the first cold morning.

  1. Bridgestone and Firestone: Tire Maintenance, Safety and Warranty Manual www.bridgestonetire.com/content/dam/consumer/bst/na/warranties/bridgestone_firestone_maint_safety_manual_05-12-17_v2.pdf
    Additionally, tires can lose 1 psi for every 10° F temperature drop.
    Checked 2026-10-09.

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