Get the cotton or tissue wet along with the thermometer. Watch the temperature as the bulb and paper or cotton dry. Some people have air conditioning. See if you can find out how air conditioners work. Click here for one explanation.
Some people just sit in the shade.
Some people just go into the basement. If you can, take the temperature in a basement. If you can't go to a basement, take the temperature of cold water from the water tap. Since water pipes are buried underground, the temperature of your cold water will be the same temperature as underground. If you did and still didn't find out you can click here .