When you walk on that wool carpet, your body then builds up a charge it can't get rid of through the insulating soles of your shoes. Then, when you touch that metal doorknob you know what happens. Dry air is also an insulator, so static electricity is even more common during the dry winter months.
Similarly, it is asked, why does dry air cause static electricity?
Static electricity is formed much better when the air is dry or the humidity is low. When the air is humid, water molecules can collect on the surface of various materials. This can prevent the buildup of electrical charges.
Why is there more static electricity in cold weather?
Static shocks will increase during the winter when the air outside is cold and dry. They may disappear in warmer damper weather. Static charge build-up is enhanced when the weather is dry so static problems are often noticed more in dry air of the winter. The air outside can be very dry when the weather is cold.
How does moisture in the air affect static electricity?
Static electricity is caused by an imbalance of electrons on a surface. So what do temperature and humidity have to do with static electricity? Moisture makes the air more conductive, so it can absorb and more evenly distribute excess charges. On humid (wet) days, objects don't hold static charges quite as well.