Is there any difference in cobwebs before and after it rains?

The spider web after the rain is made in the open air, parallel to the ground. Before it rains, spider webs are vertical webs, because vertical webs can prevent rain from getting wet.

Before it rains, when the air pressure is low, spiders feel it, so they form a vertical web before it rains, because the spider web hanging horizontally will be easily washed away by the rain. Without new nets, they will not only be too hungry to catch mosquitoes, but also be homeless after the rain.

On the contrary, if we find spiders weaving vertical webs, it indicates that it may rain.