For the next version, can we have a coinflip-ish temperature thing? Basically, PW would automatically assume the north pole is the cold one and apply a user-settable heat gradient to the temperature map...
Why assume that the North pole should be the coldest? Are you using the Earth as a model? If so, it's a fact that the
Antarctic (South Pole region) is the
coldest place on Earth. There are two reasons why the Antarctic is colder than the Arctic: 1) Much of Antarctica is 3 miles above the ocean and temperature decreases with altitude. 2) Antarctica is a landmass, which does not hold the heat as well as solid ice (such as in the Arctic region).
Also, while one pole tends to be covered in more ice than the other, it tends to be colder at
both poles on many planets. We know this to be true not only for Earth, but also for Mars and other planets in our solar system. (Mars has both a North polar ice cap and a South polar ice cap. But while many folks are aware that Mars has a North polar ice cap, the South ice cap is not common knowledge because it is much smaller.)
Edit:That said, while very unlikely, it is theoretically possible to have a planet with
either a frozen "North" Pole or a "South" pole. (By the definition endorsed by the International Astronomical Union, the north pole of a planet or satellite is the pole which points above the invariable plane of the Solar System.) There are some planets which has it's axis of rotation tilted very sharply towards the star it orbits. For example,
the axial tilt of Uranus is almost 98 degrees, making it nearly parallel with the plane of the Solar System. However, Uranus' rotational axis still revolves around the Sun, meaning it has seasonal changes which take decades to cycle.
However, if one could find a planet with such extreme axis tilt that was
tidally locked, so one side always faced the star it orbits, there could (in theory) be a small chance
part of it would be habitable (that is, if the composition was compatible with life and the orbit was in the habitable zone). Since one pole is pointed at the star and the other is perpetually dark, one pole is always "hot" while the other is bitterly cold. The hemisphere pointed away from the star would probably be uninhabitable as it would be too cold and receive little, if any, sunlight. And the other hemisphere would have nearly perpetual sunlight. So it would probably be a hot and dry desert near the pole pointed at the star, with constant violent storms near the equator (where the air of the hot and cold, day and night hemispheres meet).