There has been a long spell of dry weather.

干旱天气已持续很长一段时间了。

《柯林斯英汉双解大词典》

Exceptionally dry weather over the past year had cut agricultural production.

过去一年里异常干旱的气候降低了农业产量。

《柯林斯英汉双解大词典》

A cigarette thrown into the woods in dry weather may catch [start] a fire.

在干燥的天气里将点燃的香烟扔在树林里容易失火。

《新英汉大辞典》

Professor Cook says the tree-ring records show periods of wet and dry weather.

VOA: special.2010.05.25

They were chokingly dusty in dry weather and impassably muddy in the rain.

VOA: special.2010.11.25

Researchers also blame long periods of dry weather and heavy rain.

VOA: special.2009.05.05

With continued high temperatures and dry weather, L.A. has been on fire watch all week.

NPR: L.A. Fires Force Evacuation of Park, Zoo

The punchline: warm weather is good for search traffic, but dry weather helps, too.

FORBES: When Online House Hunting Heats Up Across America

Even this tough plant requires some help under the unusually dry weather this year, however.

CNN: Fighting the desert one tree at a time