I'm from Nanjing. I'm going to Beijing for a meeting on February 18. I don't know what the temperature is there. Do I need to bring cotton-padded clothes?

The climate in Beijing is a typical warm temperate semi-humid continental monsoon climate, with hot and rainy summer, cold and dry winter and short spring and autumn. The annual average temperature is 1~12 degrees Celsius. January -7~-4 degrees Celsius, July 25~26 degrees Celsius. The frost-free period of the whole year is 18~2 days, and the western mountainous area is shorter. The annual average rainfall is more than 6 mm, which is one of the most rainy areas in North China, and the windward slope in front of the mountain can reach more than 7 mm. The seasonal distribution of precipitation is very uneven. 8% of the annual precipitation is concentrated in June, July and August in summer, and there are often heavy rains in July and August.

Sandstorm is an occasional time, so it is difficult to make a long-term forecast.

Beijing weather reference in spring 28:

In spring 28 (March 28 to May 28), the temperature in most parts of Beijing was high, the precipitation was unusually high, and the windy and dusty weather was less.

1. The temperature is on the high side

In spring, the average temperature in the plain area of this city is 14.6℃, which is higher than normal, and close to the average of the last decade (14.3℃) and the spring of 27 (14.1℃). The highest average temperature appears in the urban observatory, Haidian and Shijingshan. The average temperature of all stations in the city is .3 ~ 2℃ higher than normal.

in spring, the monthly temperature changes greatly. In early March, the average temperature in the plain area was 7.5℃, which was 4.3℃ higher than normal (3.2℃), setting a new high for the same period since 1971. In late April, the cold air activities in our city were more frequent, and the temperature dropped rapidly. In mid-May, the average temperature was 2.6℃ lower than normal, which was the period of the lowest temperature in spring of 28. In late May, it was sunny and sunny, and the temperature rose rapidly, which was 2.3℃ higher than normal (21.6℃).

2. The precipitation is unusually high

The average precipitation in the plain area of this city in spring is 118.2 mm, which is 9% more than normal (62.2 mm) and 6% more than the average (73.4 mm) in recent ten years. Mentougou in the west has the most precipitation, with the seasonal precipitation of 159.3 mm, which is 1.4 times more than normal (65.6 mm). Shangdianzi in the northeast has the least precipitation, with a seasonal precipitation of 85.6 mm, which is less than 2% more than normal (74.2 mm). Precipitation is mainly concentrated in four precipitation processes, namely March 28th-March 29th, April 2th-April 21st, May 3rd and May 11th.

3. There are more days of precipitation, with early first thunder and early last frost

The number of days of precipitation (daily rainfall ≥.1 mm) in the observatory in spring is 2 days, which is more than that in normal years (13.4 days). In the spring of 28, the first thunder day of Beijing Observatory was April 1, which was obviously earlier than normal (April 23). The last frost day (surface temperature ≤℃) of Beijing Observatory in spring of 28 appeared on March 31st, 1 days earlier than normal (April 1th).

4. There are few strong winds, and the dust is mainly in the form of floating dust weather, which is less than normal.

In the spring of p>28, there were six days of dusty weather in Beijing, which was less than normal (9.7 days), and its manifestations were all foreign floating dust. One day in March, which appeared on March 18th; There are five days in May, which is more than normal (2.7 days). They appear on May 2th, May 21st, May 27th, May 28th and May 29th respectively, all in late May, which is the latest dust storm in recent 1 years. In addition, dusty weather also appeared in parts of northern Beijing on March 1.

In spring p>28, there were only 2 windy days in the observatory, which was obviously less than normal (8.7 days). Appeared on April 25th and May 29th respectively.