The weather machine when fully upgraded lets you set the climate in every world except Oasis Springs, because they locked the climate to be mostly hot and here are some pictures of a desert that can be both.
Desert in Winter
https://www.google.com/search?q=pictures+grand+junction+colorado+in+the+winter&sa=X&tbm=isch&tbo=u&source=univ&ved=0ahUKEwiFgJz7oZPcAhUPZawKHeYIAMAQsAQINw&biw=1440&bih=783
Desert in Summer
https://www.google.com/search?q=pictures+of+grand+junction+colorado+in+the+summer&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjupODMopPcAhVEbK0KHafzBMEQsAQIKA&biw=1440&bih=783
Edit: None of theese pictures show my personal information and was taken from the google photo album of the location in question, I can't believe a place like this exists in the world it is so beatiful in Western Colorado we have every climate in the United States in one place for a few weeks out of the year. Most poeple that visit this place wants to move here.
This is considered a Desert because average rain fall is less than 2 inches a month average snowfall is a inch or 2 in the valley every now and than.
Temperatures can range from 100*F to 20*F and when we get inversions temperatures can go into the single digits.
