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.
Spring in Yosemite National Park. Spring is by far the best time to visit Yosemite Valley. In May the waterfalls are at their peak, the wildflowers are blooming, and the summer crowds have not yet arrived. Daytime temperatures are often divine, but be prepared for chilly temperatures at night.