The summer months are the best months to avoid the desert.
Las Vegas, alone, receives millions of visitors each year.
About 5 people from Australia, 7 from Europe, 14 from Asia and 21 from America visit the Sahara Desert in a year.
Late fall until early spring are the best times to visit the Mojave as temperatures are generally quite pleasant. Summer temperatures can be extremely hot.
Spring is NOT the worst time of year for an animal that lives in a lake...dumb-dumb!!
Winter.
The Antarctic Desert is cold all year long.
During the winter.
You can visit Malacanang Palace at any time of the year, there is no difference
Depending on the desert and time of year it could be rain, hail or snow.
That depends upon the specific desert, season of the year and time of day.
The answer to your question depends upon the location in the desert and season of the year.
In which desert and what time of the year? There are about 2 dozen major desert areas in the world, each with its specific climate statistics.