Microsoft's new Climatology app makes it simple to check weather conditions anywhere on Earth.
Funny thing is, the company just released it for Android devices, with no Windows Phone app in sight. If you do use Android, the Microsoft Research-developed app can show you a location's temperature, humidity and the average amount of rain and sunshine it'll get during a particular month. Say, you're going to Thailand on a vacation in November -- just look up the place and choose a month to know if it's sunny enough to hit the country's beaches. It could be pretty useful if you travel a lot and need a quick way to check the weather. A single look at the app's Play page shows that most people find its feature set quite limited, though, so you may want to hold off on deleting your other weather apps.
Update (07/12/14): Climatology is now available for Windows Phone devices.