Zhengzhou's winters are chilly, with temperatures often below freezing in January and December, but February is slightly milder. Spring arrives in March, with temperatures gradually warming up throughout the month, reaching as high as 29°C. Summer is hot and humid, with June to August temperatures consistently above 20°C, although not excessively so. Autumn brings a welcome cool-down, with October being particularly pleasant, before winter's chill sets in once more.