In my eyes, cold and humidity only detune skins, and you'll have to tune them more - I mean to give more quarter of turns when you want to play again
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Hot and dry tends to "tune" the skins. Remember last summer. Since you're in Paris, you understand what I mean.
But we both live in a temperate country, the contrasts are usually not so strong (so far at least).
But temperature contrasts are also said to have also an influence on the wood, which can shrink then. That's why some professional players prefer to use fiberglass drums and synthetic skins.