Hanlu (寒露), literally cold dews, is one of 24 traditional Chinese solar terms, reflecting the changing of four seasons. It falls around October 8 and it's getting quite cold.
At this time, the temperature in south China keeps decreasing, and the average day temperature is well below 20℃ (68oF). In the Yangtze River valley, the lowest temperature could be 10℃ (50oF). In northwest plateau area its average temperature is already below 10℃ (50oF) – winter is already there.
During the Hanlu period, precipitation varies in different areas: around 20mm in south China, and 30mm to 40mm in east China, while in northeast and northwest China snow may begin to fall.
According to traditional Chinese medicine (TCM), people's energy releases in spring and summer and accumulates in autumn and winter. People are advised to eat more moist food such as sesame, sticky rice, rice, honey and dairy produces, along with nutritious food such as chicken, duck, beef, pork liver, fish, shrimp, yam, etc. Spicy food, or capsicum, ginger, spring onion and garlic are not good choices.
Hanlu is also a time when chrysanthemum blooms. China boasts diversified species of chrysanthemum and people have loved them since ancient times. It is close to the Double Ninth Festival (the festival falls on the ninth day of the ninth month of lunar calendar, and is also called Old People Day), when people have the custom to enjoy flourishing chrysanthemum. People may also drink chrysanthemum wine, and women like to stick a flower into their hair or hang chrysanthemum branches on windows or doors to ward off evil.