In order to share the temperature on the web, you need to register a free website Xively, from this web page https://xively.com/signup/. On this page, we should insert some standard configurations, such as name, etc ...
Now that we have completed the registration, we can finally access the page control with which we manage our information coming from the Arduino. The web page is located at the following link https://xively.com/login/.
Now we can add our device, which in this is Arduino, through which the temperature sensor DHT22, is able to read the physical magnitudes, Temp and Hum. To do this we click on "Add device" in the control page https://xively.com/develop/new
After we have completed the form above, it will open the web page from which we could see the information about the weather conditions anywhere, using an Internet connection. From this page, we should copy some data that will be included in the Arduino code:FEED ID