The table below is based on average temperatures and precipitation at Park Headquarters in Panther Junction. At the higher mountain elevations temperatures average 5–10 degrees cooler during the day and 0-5 degrees cooler at night. The mountains also receive more precipitation. The lower desert and river corridor average 5–10 degrees warmer during the day and is 0-5 degrees warmer at night (except winter when its 0-7 degrees cooler) and receives less precipitation.