Selection is useful as a pollinizer for early. to mid-season blooming varieties, though. care must be taken to avoid biennial. bearing, which reduces effectiveness as a. pollen source. Tree is medium in vigor, precocious, with moderate resistance to. fire blight.
Yosemite Valley, CA Weather. The average temperature of Yosemite Valley is 52.15Â°F, which is much lower than the California average temperature of 61.17Â°F and is lower than the national average temperature of 54.45Â°F. Historical Weather. Heating Cost Index, #1647.
At least one and perhaps more glacial advances filled Yosemite Valley to its brim. Half Dome projected 900 feet above the ice, but many peaks to the north were engulfed. The Valley was gouged and quarried into a U-shaped trough with steep walls.