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.
Visiting in Summer. Yosemite Falls--and other waterfalls in Yosemite--reach their peak flow near the end of May, but usually remain high well into June. By August, waterfalls have little water or (in the case of Yosemite Falls) may be dry.