title: How do I calculate the temperature in celsius returned in openweathermap.org JSON?
body: <p>I'm getting the weather for a city using openweathermap.org.</p>
  
  <p>The jsonp call is working and everything is fine but the resulting object contains the temperature in an unknown unit:</p>
  
  <pre><code>{
      //...
      "main": {
          "temp": 290.38, // What unit of measurement is this?
          "pressure": 1005,
          "humidity": 72,
          "temp_min": 289.25,
          "temp_max": 291.85
      },
      //...
  }
  </code></pre>
  
  <p>Here is a demo that <code>console.log</code>'s the full object.</p>
  
  <p>I don't think the resulting temperature is in fahrenheit because converting <code>290.38</code> fahrenheit to celsius is <code>143.544</code>.</p>
  
  <p>Does anyone know what temperature unit openweathermap is returning?</p>