Compared with China, the United States is not continental, but maritime. Therefore, compared with places at the same latitude in China, the average temperature in winter in Leng Yue is higher than that in China. Moreover, the great plains in the central United States run through the north and south, which is conducive to the warm and humid airflow from the Gulf of Mexico entering the inland, and the Alaska Warm Current and the Mexico Warm Current warm and wet the American coast. So compared with China, the United States is a little warmer.
Culture: Since ancient times, China has paid attention to keeping in good health and keeping warm in winter.
The United States has inherited the culture of Western Europe (the temperate maritime climate in Western Europe, the most in Leng Yue is above 0℃), and its warmth is not as strong as that in China.
Diet: China is dominated by rice, whole grains and vegetables, which have less calories and need to better preserve body heat.
The United States is dominated by pasta, meat, eggs and milk, which contains a lot of calories, so it has strong cold resistance.