The weather here is notoriously fickle.

这里的天气出了名的变化无常。

《牛津词典》

New England's weather can be fickle.

新英格兰的天气变幻莫测。

《柯林斯英汉双解大词典》

Northern weather is always fickle, and always comes to you inadvertently. it approached your life silently and then left quietly.

北方的天气总是变幻无常，总在你的不经意间悄然而至，无声的走近你的生活又悄悄的离开。

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Investors may be as fickle as the weather, but the IMF, too, is warning against over-zealous austerity.

ECONOMIST: Charlemagne: April showers on the euro | The

But until Africa's economies become more diversified, they will be over-exposed to changeable weather, fickle aid flows and volatile commodity prices.

ECONOMIST: African financial markets

There we just got a series of curve balls, the weather is really fickle.

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