What Biome has the largest temperature drop between day and night?

The desert biome experiences the largest temperature drop between day and night. During the day, temperatures can soar due to intense sunlight, often exceeding 100°F (38°C), while at night, they can plummet to near freezing or even lower. This significant diurnal temperature variation is mainly due to the lack of moisture and vegetation, which limits heat retention. As a result, deserts can have temperature drops of 50°F (28°C) or more from day to night.