Nighttime lows are in the 80's or 90's but can remain above 100. You will find fair days and pleasant evenings from late October or November through March or mid April. In your visit you can do a number of simple things that will minimize your impacts to wilderness and keep it untouched for your next visit. Please visit the official Leave No Trace website for more information. Use a camp stove whenever possible.
Wood is extremely rare and important to the ecosystem.
If you must have a fire burn only down and dead wood and use small quantities. Do not build rock rings and remember it is best to use a fire pan and always scatter the ashes when you are done and the fire is out. All area wilderness are remote and require cross country travel. Limit your travel to durable surfaces such as washes and rock or wild burro trails. If you are in a group spread out instead of traveling single file to minimize the creation of trails.