I am attempting to build an earth-like planet using this blog post (mentioned to me by @MonicaCellio).
The post is great and I've been able to quickly and easily create a world. I've had a slight problem with assigning climates though. I'm using the Whittaker Diagram found here, and I've made a table based off of it, listing which climate is created by what amount of rainfall and temperature (mainly so there's no overlap).
In that post, the author states that, "The upper right half is mostly empty, since these climate combinations do not exist on Earth — remember that cold air cannot hold moisture." Unfortunately, my world has exactly that combination of factors, centered around the 60/-60 degree latitudes.
I know why this is: Hadley Cells. In the process described by the blog, we create Hadley cells bringing rain. The rain is centered on the equator, and at 60/-60 degrees latitude - right about where I have my cold/wet environments. And yet according to the temperature, there can't be rain there because it is cold, despite the presence of the hadley cell.
Which is it? Is it warmer where it rains? Does the cool air from the pole negate the rain from the hadley cell? What am I doing wrong?