problem with DHT22

i've a DHT22 and i've use the function dht.readHumidity(); but the return is 24.5 and it is very low... i don't know why the value is that... please someone can help me?

and the temperature is right… ive tryed with a thermometer and the temperature is the same… but 24.5 % humidity for me is very low…

you might need to recalibrate the sensor

how can i do it?

Google calibration procedure DHT temperature sensor

if you are a pro you might dig into this one - http://www.kandrsmith.org/RJS/Misc/calib_dht22.html