Wu'an's winters are bitterly cold, with January temperatures often plummeting below -17°C and averaging just 1°C. Spring brings a welcome warmth, with temperatures rising steadily throughout March and April, reaching averages of 16°C by April. Summer is hot but not sweltering, with June and July highs peaking at around 38°C, while autumn cools down quickly, with September's average temperature already dipping to 22°C. As winter returns, the mercury drops once more, with December temperatures averaging a chilly 4°C. Overall, Wu'an's climate is marked by a distinct coolness in both spring and autumn, and an equally pronounced chill in winter.