Lin'an's spring is characterized by mild temperatures, gradually warming up from March onwards. The month of April brings pleasant highs around 20-23°C, while May sees a slight increase in temperature, averaging 24-26°C. June marks the beginning of summer, with temperatures often reaching as high as 29-30°C. Autumn is warm but not hot, with September and October averaging highs around 22-25°C and lows around 15-18°C. Winters are cool to mild, with January and February averaging highs around 8-12°C.