The terrestrial biome that is hot or cold but always has a little precipitation is the desert.

Here's why:

* Low Precipitation: Deserts are defined by their extreme dryness, receiving less than 10 inches of precipitation per year.

* Temperature Variation: Deserts can experience extreme temperature fluctuations. Some deserts, like the Sahara, are incredibly hot during the day and cool at night, while others, like the Gobi Desert, can experience freezing temperatures in the winter.

Let me know if you have any other biome questions!