There are many reasons for the noise. Whether you condition is normal depends on the cause of the noise. When the liquid or moist in your eyes is abundant, there will be noise caused by air friction every time you blink your eyes. This condition is normal, and not a big issue. Eye wateriness is another cause of the noise, which should be taken seriously. And you should do something to get rid of the wateriness. Eye mucus can also make the blinking noise. It is the result of infection, allergies or eye dryness. If the noise lasts for a long time, you should see an oculist to get advice or proper treatment.