Mount Everest's climate is one of the most dangerous climates in the world, with temperatures of -36ºC and winds of about 80km/h. Mt Everest has 6 seasons they are Summer, Autumn Window, Autumn, Winter, Spring and Spring Window. Climbers say the best time to go is during both of the Window seasons because it is dry, warm and calm. Everest's precipitation is mostly during Summer with rainfalls of up to 320ml.