Quartz Hill, in California, United States, is home to roughly 10,900 people in the Pacific Time Zone at 34.6°N latitude.
In 2025, Quartz Hill recorded an average annual temperature of 62°F — right at the 30-year normal of 62°F. The hottest day reached 103°F in August; the coldest was 23°F in January. Total precipitation was 17 inches (wetter than usual). The wettest month was November.
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