With a population of around 56,900, Diamond Bar sits in California, United States. The city operates in the Pacific Time Zone.
Expect a arid subtropical climate in Diamond Bar: average highs of 84°F in midsummer, lows near 46°F in midwinter, and an annual mean of 66°F. Precipitation totals roughly 12 inches per year, concentrated around February, with July typically the driest month.
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