Due to a weird quirk of geology, New Mexico's Bandera Volcano Ice Cave never warms above 31 degrees Fahrenheit, even when temperatures outside exceed 100 F in summer.
Bandera Volcano Ice Cave: The weird lava tube in New Mexico whose temperature is always below freezing
Live Science - 6 Feb 2026 13:00
Due to a weird quirk of geology, New Mexico's Bandera Volcano Ice Cave never warms above 31 degrees Fahrenheit, even when temperatures outside exceed 100 F in summer.
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