Grandpa Li is over seventy years old this year. His eyesight is blurred and he can't see the weather forecast clearly. He doesn't know what the temperature is today and how much to wear.

Grandpa Li is over seventy years old this year. His eyesight is blurred and he can't see the weather forecast clearly. He can learn about the weather by listening to the radio.

Dressing index refers to the thickness of clothes needed to keep the body surface temperature constant or keep the human body comfortable. The meteorological index of clothing is divided into 8 grades. The smaller the index, the thinner the clothes. The temperature corresponding to each level is:

Level 1, temperature >; 28 degrees Celsius.

Summer clothes: short clothes, short skirts, thin skirts, shorts and other light cotton fabrics.

Second, thermal comfort.

The temperature is between 24.0 and 27.9 degrees Celsius.

Summer clothes: cotton and linen shirts, thin long skirts and thin T-shirts.

Extended data:

Precautions for weather forecast chart:

Terms commonly used in weather forecast:

Sunny day: the cloud cover in the sky is less than 30%.

Yin: The amount of clouds in the sky accounts for more than 90%.

Fog: A large number of tiny water droplets or ice crystals float in the air near the ground, and the horizontal visibility drops below 1 km, which affects transportation.

Light rain: the daily precipitation is less than 10 mm.

Heavy rain: the daily precipitation is 25.0-49.9mm..

Thunderstorm: Intermittent precipitation accompanied by lightning and thunder.

Hail: With the violent vertical movement in the cumulonimbus cloud, small hail nuclei repeatedly rise, condense, fall and melt, and grow into small ice cubes with transparent layers, which have an impact on crops.