In late autumn the sky is crystal clear.

深秋的天空异常爽朗。

《新英汉大辞典》

The Fragrant Hills are exceptionally beautiful in late autumn.

深秋的香山格外美丽。

《新英汉大辞典》

Late autumn and winter dust storms are rare.

深秋和冬天的沙尘暴是罕见的。

youdao

Mulch can be added late in autumn to help moderate the effects of winter weather.

VOA: special.2009.06.30

Back in the hills you hear the pop-pop-pop all early morning long in the late autumn.

FORBES: The Other Tuscany

Look: There was bound to be a little dial-back on the buzz that surrounded Brooklyn's basketball franchise in late autumn.

WSJ: Jason Gay: Psst, Brooklyn Is Back

If it does not, Mr Kok will continue as caretaker prime minister until a general election, probably not before late autumn.

ECONOMIST: The Netherlands