Vex climate 00

It is a blue-green planet of a 24,000 mile circumference, with a comparatively whisper-thin atmosphere of mostly nitrogen and oxygen. What is its climate like? For fictional comparison's sake (since this planet 'Earth' appears to be a topic of such note amongst Vexillium's net-heads), how would Earth differ to Vexillium?

Topics include:

For a list of completed articles, check Category:Climate.