March, April, May and October are all historically excellent Pahrump weather months taking into consideration the average high and low monthly temperatures. Pahrump is high desert at 2697 feet above sea level and the temperature is usually 3 to 5 degrees cooler than Las Vegas at 2181′ elevation.
Pahrump Nevada Monthly average temperatures http://www.weather.com/weather/wxclimatology/monthly/89061