NewBee DHT readings. Non-linear?

var dht = require("http://drazzy.com/e/espruino/etc/dht22debug.js").connect(C11); 
dht.read(function (a) {console.log("Temp is "+a.temp.toString()+" and RH is "+a.rh.toString());});

(change the pin to whatever pin you have connected to it)

Please run that while it's at a temperature it fails at and post the results that it logs.