Biome/area with no rain?

[Googley Eye'd Bastard]

I have sever issues with migrants and the children they bring when it comes to rain, they inevitably come at a time when it is raining on my forts surface.

The adults shrug it off when they taste my assortment of booze and triple minced cheese roasts (don't know why but my master chef always seems to cook 3 of the same thing into a roast) but the dwarf children seem to develop PTSD over it and forever remember the time a single droplet of rain dabbed their nose.

I do everything I can to ease their stress, no chores, fine food and fresh water from a stream redirected from the local river safely through the fort, toys made from gold and silver and it does work on many of them but there are always a good few sticklers who just can't get past their trauma.

So are there any biomes in world gen that have no rain? I'd honestly rather face having no surface water or trees than dealing with this annoyance, or should I just kick out all the brats who stay perpetually grouchy into adulthood?

[miralight]

maybe desert or badlands or a snow biome

[Fel]

The wiki has a "graph" with the various biomes based on rainfall and drainage:
https://dwarffortresswiki.org/index.php/Biome#Generating_a_Biome

Sand desert, wasteland or badlands rarely get any rain, but it also means little to no vegetation (including trees), which is a bit obvious.
Not that you can't play there, caves will have underground trees and you can always get more from caravans (especially if you request it from the yearly liaison), but it does make things a bit harder at the start (for beds specifically since most things can be made from rocks and/or metal as well).
It can also mean that grazer animals could have trouble feeding themselves depending on the presence of grass or not (again, underground moss works but it takes time to grow and caverns are a bit dangerous).
Wiki page for all of the "desert" biomes listed above:
https://dwarffortresswiki.org/index.php/Desert

Another thing to note is that even in normal savagery there are a few dangerous beasts that can spawn like jaguars or leopards.


Alternatively, you can go for grassland biomes that have a bit more rain, possible dangerous wildlife as well but a lot more shrubs and trees.
https://dwarffortresswiki.org/index.php/Grassland


For other biomes, you can also make underground entrances closer to the sides of the map, to gretaly limit the time spent outside, it tends to give better result with the whole unhappy with rain (as long as they don't go outside after that of course).