Here's why:

* Haumea is a dwarf planet: It's incredibly far away from the Sun, with an average distance of 43.3 AU (Astronomical Units). This makes it extremely cold and with a very thin atmosphere.

* No direct measurements: We haven't sent any spacecraft to Haumea yet. Our knowledge of it is based on observations from telescopes on Earth.

* Limited atmospheric data: While Haumea is believed to have a very thin atmosphere, it's difficult to study directly from Earth.

Even if we could detect wind, it's likely to be incredibly weak due to the extreme cold and low gravity.

So, unfortunately, we don't have any data on wind speeds on Haumea.