Title: Beijing Weather: Overview and Related Knowledge

Beijing, the capital city of China, experiences a continental monsoon climate, characterized by hot and humid summers, and cold and dry winters. The city is located in the north of China, where the Siberian high-pressure system and the East Asian monsoon system collide, resulting in significant temperature differences between seasons.

Summer in Beijing is hot and humid, with temperatures ranging from 30°C to 40°C (86°F to 104°F) in July and August, the hottest months. Heavy rain and thunderstorms are common during this time.

Autumn is cool and dry, with temperatures gradually decreasing from September to November. The average temperature in October is around 15°C (59°F), making it the most comfortable season in Beijing. The air is relatively clear and dry, perfect for outdoor activities.

Winter in Beijing is cold and dry, with occasional snowfall. Temperatures in December, January, and February can drop below freezing, with an average low of -4°C (25°F) in January. The city receives less sunlight during this time, making it feel colder.

Spring in Beijing is short but pleasant, with mild temperatures and occasional rain. March and April are the best times to visit, as the city is in full bloom, and the air is relatively clear.

Overall, Beijing has a continental climate with significant temperature differences between seasons, and the best time to visit depends on your preferences for weather and outdoor activities.

When discussing Beijing's weather, it's essential to understand the concept of air quality. Beijing has been notorious for its poor air quality in recent years, mainly due to vehicle emissions, industrial pollution, and construction dust. The city has implemented various measures to improve air quality, including restrictions on vehicle usage, shutdowns of polluting industries, and promotion of clean energy.

To protect yourself from air pollution, it's recommended to check the air quality index before going outside and wear a mask if necessary. Additionally, avoiding outdoor activities during peak pollution hours (usually in the morning and evening) can help reduce exposure to harmful substances.

In conclusion, Beijing's weather varies greatly throughout the year, with hot summers, cold winters, and pleasant springs. Understanding the local climate and air quality conditions is crucial for planning a visit or choosing the right time to visit Beijing.

(责任编辑：王威胜)

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