Longjin, China experiences a mild climate with distinct seasonal variations. In winter, temperatures range from freezing to mild, averaging around 15°C in January and 16°C in December, with occasional warm days reaching up to 26-30°C. Spring is characterized by gradual warming, with March and April temperatures rising to an average of 22-24°C, while summer months are hot, with July being the warmest at an average of 31°C. Autumn brings a return to milder conditions, with October and November averaging around 20-24°C, before cooling off into winter once more.