The weather in Hangzhou has four distinct seasons.

Figure ① Low pressure began to form in the middle of the land, and the high pressure on the ocean became stronger. The quasi-static front affects the southern part of China, and it rains in succession during the Qingming period. Hangzhou should be spring;

In Figure 2, a low pressure is formed on the land, and the high pressure on the ocean is very strong. Hangzhou is located in the saddle, and the winds on the north and south sides are opposite, which is easy to form a positive stalemate. Hangzhou may enter the rainy season, which should be summer;

Figure 3 shows that the pressure on land is high and the pressure on the ocean is weak, and there is an obvious cold front process in eastern China. At this time, Hangzhou is cold and rainy, which should be winter;

Figure 4. The land high pressure is getting stronger, and there is strong cyclone activity (possibly typhoon) in the eastern sea area, which may affect Hangzhou, mostly in autumn.

Accordingly, the correct order of the four seasons should be: 12433.

So choose: C.