Comparing average temperatures between cities is surprisingly difficult using existing web resources. I decided to solve this problem by making a simple site that allows you to enter 2 or more cities anywhere in the world and compare their monthly average temperatures. This is a great tool if you are planning a trip or planning a move.
The idea, design and Javascript code are entirely mine. To get the temperature data I am querying the WeatherUnderground API. The site is responsive so it works great on mobile or desktop.