Weather and Climate
In Sequoia National Park, climate all depends on where you are and how high up (from 1,500 feet) or low you are standing (to 1,500 feet) Summer in this forested area of the parks offers warm days and cool evenings. These elevations receive an average of 40-45" (102-114 cm) of precipitation annually. Much of this falls during the winter, resulting in a deep blanket of snow from December to May. Sub-zero temperatures are rare. In the summer, occasional afternoon thundershowers may occur. Summer temperatures in Cedar Grove are generally hotter than the average for the middle elevations, and cooler than the foothills. Mid-summer temperatures may reach the 90°s (35-40°C).
Source: http://www.nps.gov/seki/planyourvisit/weather.htm
Source: http://www.nps.gov/seki/planyourvisit/weather.htm