Bigger weather

Xinjiang proverb: Wear cotton in the morning, yarn in the afternoon and eat watermelon around the stove.

It should happen in Xinjiang.

The specific heat capacity of sand is less than that of water. When the temperature rises at noon, the specific heat capacity of sand is small, so the amount of temperature rise is relatively large, so there is "threading at noon". The temperature drops in the morning and evening. As mentioned above, the temperature of the sand has dropped a lot, so people living there need some warm-keeping measures, such as "wearing cotton-padded jacket early" and "eating watermelon around the stove"