I too lived in Denver as a child long ago. Not able to drive at that age, I don't recall the pothole situation. I do recall that what snow there was did disappear fast. Adults claimed it was because the air was so dry [[sublimation?). There's also the adiabatic cooling/orographic lifting effect that causes precipitation to fall on the windward, rather than the leeward [[Denver) side of the Rockies.
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