The pattern is similar withgroundfrost, with on average around 100 days ofgroundfrostin the lowlands and over 140 in the mountains.
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Footing depth is dug to below thegroundfrostlevel and depends on the region.
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There are on average 99 days ofgroundfrostper year.
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There are many ground frosts on clear nights, and sporadic snowfalls.
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Ground frosts are virtually unknown.
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